Syntax Of Operators And Common Functions In Expressions
Apr 4, 2008
Hi all, real basic question:
I can't seem to find a basic reference that tells me the syntax and allowable values of parameters in common functions such as Format or CDate when editing a Field Expression in Visual Studio (Report Definition Language?). Where would I start?
For example, I've discovered that the Format function "Returns a string formatted according to instructions contained in a format String expression.", and the string expression can have values like "D" and "d" which produce different results, but where would I find out what the allowable string expressions are and their meaning?
I have also been guessing at the syntax of the CDate command with no luck. I need a reference that tells me what the different function parameters mean.
thanks
Jac
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Aug 31, 2006
Hi guys,
I know its not a good idea to give you a big query...but/...
I have a query (given below) with Common table expressions. It is giving me error : The multi-part identifier "dbo.tmpValidServices_ALL.Service" could not be bound. for all the fields .. Do you have any idea.. I fed up with analysing query.. made me mad.. please help me...
----------------------------------------------
DECLARE @sql nvarchar(MAX), @paramlist nvarchar(4000)
SET @sql = 'WITH Q1 (SiteID,Programme,Complete,PID,COC,NotionalSum,TVMinsSUM,Postcode,Suburb,Qty)
AS
(SELECT
dbo.tmpValidServices_ALL.SiteID,
dbo.tmpValidServices_ALL.Programme,
dbo.tmpValidServices_ALL.Complete AS Complete,
dbo.tmpValidServices_ALL.RID AS PID,
dbo.tmpValidServices_ALL.COC# AS COC,
(dbo.lkpService.Notional$) AS NotionalSum,
(TVMins) AS TVMinsSUM,
dbo.tmpDemographics_ALL.Postcode,
dbo.tmpdemographics_ALL.Suburb,
count(*) as Qty
FROM lkpService
INNER JOIN dbo.tmpValidServices_ALL vs ON dbo.lkpservice.code = dbo.tmpValidServices_ALL.Service
INNER JOIN dbo.tmpDemographics_ALL ON dbo.tmpValidServices_ALL.RID = dbo.tmpDemographics_ALL.RID '
IF @COCGroup IS NOT NULL
SELECT @sql = @sql + 'LEFT OUTER JOIN dbo.lkpCOC c ON dbo.tmpValidServices_ALL.COC = c.pvcode '
SELECT @sql = @sql + 'LEFT OUTER JOIN dbo.lkpAgency ag ON vs.SiteID = ag.EXACT# '
SELECT @sql = @sql + 'WHERE dbo.lkpService.Schedule = @Schedule '
IF @StartDate IS NOT NULL
SELECT @sql = @sql + ' AND (dbo.tmpValidServices_ALL.Complete >= @StartDate ) '
IF @EndDate IS NOT NULL
SELECT @sql = @sql + ' AND (dbo.tmpValidServices_ALL.Complete <= @EndDate ) '
IF @SiteID IS NOT NULL
SELECT @sql = @sql + 'AND (ag.EXACT# = @SiteID) '
IF @COCGroup IS NOT NULL
SELECT @sql = @sql + ' AND (c.pvcode = @COCGroup OR c.pvcode IN (SELECT COC FROM lkpCOCGroup WHERE COCGroup = @COCGroup)) '
IF @Provider IS NOT NULL
SELECT @sql = @sql + 'AND (dbo.tmpValidServices_ALL.Provider = @Provider) '
IF @Postcode IS NOT NULL
SELECT @sql = @sql + 'AND (dbo.tmpdemographics_ALL.Postcode = @Postcode) '
SELECT @sql = @sql + ' GROUP BY dbo.tmpValidServices_ALL.SiteID,
dbo.tmpValidServices_ALL.Programme,
dbo.tmpValidServices_ALL.Complete ,
dbo.tmpValidServices_ALL.RID ,
dbo.tmpValidServices_ALL.COC# ,
dbo.tmpDemographics_ALL.postcode,
dbo.tmpdemographics_ALL.Suburb,
(dbo.lkpService.Notional$),
(dbo.lkpService.TVMins) )
SELECT COUNT(DISTINCT PID + CAST(Complete AS varchar(20)) + CAST(COC AS varchar(20)) + CAST(SiteID AS varchar(20)) + CAST(Programme AS varchar(20))) AS Visits,
COUNT(DISTINCT PID + CAST(SiteID AS varchar(20)) + CAST(Programme AS varchar(20))) AS Patients,
COUNT(DISTINCT CAST(COC AS varchar(20)) + CAST(SiteID AS varchar(20)) + CAST(Programme AS varchar(20)) + CAST(PID AS varchar(20))) AS COCs,
SUM(NotionalSum) AS NotionalSum,
SUM(TVMinsSUM) AS TVMinsSUM,Postcode,Suburb,sum(Qty) as Qty
FROM Q1
Group by Postcode,Suburb
Order by Postcode,Suburb '
SET @paramlist = '@SiteID as numeric,
@COCGroup as varchar(20),
@Postcode as varchar(20),
@StartDate DateTime,
@EndDate DateTime,
@Schedule varchar(20),
@Provider varchar(20)'
EXEC sp_executesql @sql, @paramlist, @SiteID, @COCGroup, @Postcode, @StartDate, @EndDate, @Schedule, @Provider
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Feb 20, 2007
I have managed to write my first CTE SQL that handles recursion but I have a problem with distinct - can't get that to work!!
My CTE:WITH StudentsHierarchy(SystemID1, GroupID, AccessType, AccessGroupID, StudentID, HierarchyLevel) AS
(
--Base Case
SELECT
SystemID,
GroupID,
AccessType,
AccessGroupID,
StudentID,
1 as HierarchyLevel
FROM UserGroup a
UNION ALL
--Recursive step
SELECT
u.SystemID,
u.GroupID,
u.AccessType,
u.AccessGroupID,
u.StudentID,
uh.HierarchyLevel + 1 as HierarchyLevel
FROM UserGroup u
INNER JOIN StudentsHierarchy uh ON
u.GroupID = uh.AccessGroupID
)
Select sh.SystemID1, sh.GroupID, sh.AccessType, sh.AccessGroupID, sh.StudentID, sh.HierarchyLevel, (select StudentName from Student s
where sh.StudentID = s.StudentID) AS StudentName from StudentsHierarchy sh
WHERE AccessType = 'S'
and I would like to have a distinct on the StudentID like:Select DISTINCT sh.StudentID, sh.SystemID1, sh.GroupID, sh.AccessType, sh.AccessGroupID, sh.StudentID, sh.HierarchyLevel, (select StudentName from Student s
where sh.StudentID = s.StudentID) AS StudentName from StudentsHierarchy sh
WHERE AccessType = 'S'
How should I do?
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Oct 26, 2007
After reading all the comments about microsoft ole db provider for db2, I've started converting a project from ibm db2 provider to microsoft ole db provider, for the reason that the server would not need a ibm client software installation anylonger.
However in one of the dataflows there is a select statement on the DB2 database (AS400 iseries DB2 V5R4) that uses common table expression. The Oledb data source in the Dataflow returns zero input columns when I use the microsoft provider instead of the ibm provider. When I set it back to use the ibm oledb provider the input columns are available again.
The common table expression is used in the select statement like:
WITH x AS (SELECT ... FROM mytable WHERE ...)
SELECT x.*, (x.a - x.b) As diff
FROM x
We are not allowed to change anything in the DB2 database, so using views or sprocs is not an option.
Did anyone else experience this and can it be avoided without changing the selct logic?
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Jan 2, 2008
Hi all,
I have the following T-SQL code of Common Table Express (CTE) that works in the SQL Server Management Studio Express (SSMSE):
--CTE.sql--
USE ChemAveRpd
GO
WITH PivotedLabTests AS
(
SELECT LT.AnalyteName, LT.Unit,
Prim = MIN(CASE S.SampleType WHEN 'Primary' THEN LT.Result END),
Dupl = MIN(CASE S.SampleType WHEN 'Duplicate' THEN LT.Result END),
QA = MIN(CASE S.SampleType WHEN 'QA' THEN LT.Result END)
FROM LabTests LT
JOIN Samples S ON LT.SampleID = S.SampleID
GROUP BY LT.AnalyteName, LT.Unit
)
SELECT AnalyteName, Unit, avg1 = (abs(Prim + Dupl)) / 2,
avg2 = (abs(Prim + QA)) / 2,
avg3 = (abs(Dupl + QA)) / 2,
RPD1 = (abs(Prim - Dupl) / abs(Prim + Dupl)) * 2,
RPD2 = (abs(Prim - QA) / abs(Prim + QA)) * 2,
RPD3 = (abs(Dupl - QA) / abs(Dupl + QA)) * 2
FROM PivotedLabTests
GO
===========================================
How can I execute this set of the CTE.sql code in the VB 2005 Express via the Stored Procedure programming?
Please help and respond.
Thanks in advance,
Scott Chang
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Apr 21, 2015
I have report showing sales by Vendor. I need to list all the vendors with Monthly Total>5000 and combine the rest as "OTHER VENDORS"
Vendor is a Group in my report, so I tried to put an expression as a Group on:
=IIF(Sum(Fields!Mth_1_Sales.Value)>5000,Fields!Vendor_No.Value,"OTHER VENDORS")
I've got an error: "aggregate functions cannot be used in group expressions"
How do I get Vendors with Sales < 5000 into "OTHER VENDORS" ?
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Apr 24, 2008
Does anybody know a reliable source for common Expressions and Syntax rules used in RS2000 or RS2005?
This is my third day chipping away at RS and it's been challenging so far.
thx,
John
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Jul 20, 2005
The UPDATE table FROM syntax is not supported by Oracle.I am looking for a syntax that is understood by both Oracle and SqlServer.Example:Table1:id name city city_id1 john newyork null2 peter london null3 hans newyork nullTable2:id city23 london24 paris25 newyorkUPDATE table1SET city_id = table2.idFROM table1, table2WHERE table1.city = Table2.cityIf possible I do not want to have two different statements for Oracle andSqlServerPlease do not tell me that these tables are not normalized, it's just anexample!Thanks for any hints.Jan van Veldhuizen
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May 20, 2008
I have multiple Common Table Expressions i.e CTE1,CTE2,...CTE5.
I want to Create Temperory Table and inserting data from CTE5. Is this possible to create?
like:
create table #temp (row_no int identity (1,1),time datetime, action varchar(5))
insert into #temp select * from cte5
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Aug 3, 2006
I am having this error when using execute query for CTE
Help will be appriciated
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Dec 11, 2007
I want to have this query insert a bunch of XML but i get this error...
Msg 128, Level 15, State 1, Procedure InsertTimeCard, Line 117
The name "ExpenseRptID" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some contexts) variables. Column names are not permitted.
Msg 128, Level 15, State 1, Procedure InsertTimeCard, Line 151
The name "DateWorked" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some contexts) variables. Column names are not permitted.
What am i doing wrong...Can anyone help me out!! Thanks!!
p.s I know this query looks crazy...
Code Block
IF EXISTS (SELECT NAME FROM sysobjects WHERE NAME = 'InsertTimeCard' AND type = 'P' AND uid=(Select uid from sysusers where name=current_user))
BEGIN
DROP PROCEDURE InsertTimeCard
END
go
/*********************************************************************************************************
** PROC NAME : InsertTimeCardHoursWorked
**
** AUTHOR : Demetrius Powers
**
** TODO/ISSUES
** ------------------------------------------------------------------------------------
**
**
** MODIFICATIONS
** ------------------------------------------------------------------------------------
** Name Date Comment
** ------------------------------------------------------------------------------------
** Powers 12/11/2007 -Initial Creation
*********************************************************************************************************/
CREATE PROCEDURE InsertTimeCard
@DateCreated DateTime,
@EmployeeID int,
@DateEntered DateTime,
@SerializedXML text,
@Result int output
as
declare @NewTimeCardID int
select @NewTimeCardID = max(TimeCardID) from OPS_TimeCards
-- proc settings
SET NOCOUNT ON
-- local variables
DECLARE @intDoc int
DECLARE @bolOpen bit
SET @bolOpen = 0
--Prepare the XML document to be loaded
EXEC sp_xml_preparedocument @intDoc OUTPUT, @SerializedXML
-- check for error
IF @@ERROR <> 0
GOTO ErrorHandler
--The document was prepared so set the boolean indicator so we know to close it if an error occurs.
SET @bolOpen = 1
--Create temp variable to store values inthe XML document
DECLARE @tempXMLTimeCardExpense TABLE
(
TimeCardExpenseID int not null identity(1,1),
TimeCardID int,
ExpenseRptID int,
ExpenseDate datetime,
ProjectID int,
ExpenseDescription nvarchar(510),
ExpenseAmount money,
ExpenseCodeID int,
AttachedRct bit,
SubmittoExpRep bit
)
DECLARE @tempXMLTimeCardWorked TABLE
(
TimeCardDetailID int not null identity(1,1),
TimeCardID int,
DateWorked DateTime,
ProjectID int,
WorkDescription nvarchar(510),
BillableHours float,
BillingRate money,
WorkCodeID int,
Location nvarchar(50)
)
-- begin trans
BEGIN TRANSACTION
insert OPS_TimeCards(NewTimeCardID, DateCreated, EmployeeID, DateEntered, Paid)
values (@NewTimeCardID, @DateCreated, @EmployeeID, @DateEntered, 0)
-- check for error
IF @@ERROR <> 0
GOTO ErrorHandler
--Now use @intDoc with XPATH style queries on the XML
INSERT @tempXMLTimeCardExpense (TimeCardID, ExpenseRptID, ExpenseDate, ProjectID, ExpenseDescription, ExpenseAmount, ExpenseCodeID, AttachedRct, SubmittoExpRep)
SELECT @NewTimeCardID, ExpenseRptID, ExpenseDate, ProjectID, ExpenseDescription, ExpenseAmount, ExpenseCodeID, AttachedRct, SubmittoExpRep
FROM OPENXML(@intDoc, '/ArrayOfTimeCardExpense/TimeCardExpense', 2)
WITH ( ExpenseRptID int 'ExpenseRptID',
ExpenseDate datetime 'ExpenseDate',
ProjectID int 'ProjectID',
ExpenseDescription nvarchar(510) 'ExpenseDescription',
ExpenseAmount money 'ExpenseAmount',
ExpenseCodeID int 'ExpenseCodeID',
AttachedRct bit 'AttachedRct',
SubmittoExpRep bit 'SubmittoExpRep')
-- check for error
IF @@ERROR <> 0
GOTO ErrorHandler
-- remove XML doc from memory
EXEC sp_xml_removedocument @intDoc
SET @bolOpen = 0
INSERT OPS_TimeCardExpenses(TimeCardID, ExpenseRptID, ExpenseDate, ProjectID, ExpenseDescription, ExpenseAmount, ExpenseCodeID, AttachedRct, SubmittoExpRep)
Values(@NewTimeCardID, ExpenseRptID, ExpenseDate, ProjectID, ExpenseDescription, ExpenseAmount, ExpenseCodeID, AttachedRct, SubmittoExpRep)
select @NewTimeCardID, ExpenseRptID, ExpenseDate, ProjectID, ExpenseDescription, ExpenseAmount, ExpenseCodeID, AttachedRct, SubmittoExpRep
from @tempXMLTimeCardExpense
-- check for error
IF @@ERROR <> 0
GOTO ErrorHandler
-- For time worked...
INSERT @tempXMLTimeCardWorked(TimeCardID, DateWorked, ProjectID, WorkDescription, BillableHours, BillingRate, WorkCodeID, Location)
SELECT @NewTimeCardID, DateWorked, ProjectID, WorkDescription, BilliableHours, BillingRate, WorkCodeID, Location
FROM OPENXML(@intDoc, '/ArrayOfTimeCardWorked/TimeCardWorked', 2)
WITH ( DateWorked DateTime 'DateWorked',
ProjectID datetime 'ProjectID',
WorkDescription nvarchar(max) 'WorkDescription',
BilliableHours float 'BilliableHours',
BillingRate money 'BillingRate',
WorkCodeID int 'WorkCodeID',
Location nvarchar(50)'Location')
-- check for error
IF @@ERROR <> 0
GOTO ErrorHandler
-- remove XML doc from memory
EXEC sp_xml_removedocument @intDoc
SET @bolOpen = 0
INSERT OPS_TimeCardHours(TimeCardID, DateWorked, ProjectID, WorkDescription, BillableHours, BillingRate, WorkCodeID, Location)
Values(@NewTimeCardID,DateWorked, ProjectID, WorkDescription, BillableHours, BillingRate, WorkCodeID, Location)
select @NewTimeCardID ,DateWorked, ProjectID, WorkDescription, BillableHours, BillingRate, WorkCodeID, Location
from @tempXMLTimeCardWorked
-- commit transaction, and exit
COMMIT TRANSACTION
set @Result = @NewTimeCardID
RETURN 0
-- Error Handler
ErrorHandler:
-- see if transaction is open
IF @@TRANCOUNT > 0
BEGIN
-- rollback tran
ROLLBACK TRANSACTION
END
-- set failure values
SET @Result = -1
RETURN -1
go
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Mar 18, 2005
Hello,
I am trying to filter records according to an exact string case match and the operator = does not seem to do the job.
Executing,
SELECT * FROM Customers WHERE kUserId='admin' AND strPw='abcd'
and
SELECT * FROM Customers WHERE kUserId='admin' AND strPw='aBcD'
always fetches the same record.
So, how do I do about employing case-exact filtering?
Thank you very much.
David
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Oct 28, 2007
I apologised if this has been posted before. I am having so many problems with these operators.
I can get this to work..
" Select *
from emp
where job is not 'manager';
but not
" Select *
from emp
where job is not 'manager'
or where job is not 'president' ;
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Mar 19, 1999
Am I hallucinating or does SQL Server 6.5 not support the EXCEPT and INTERSECT operators?
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Aug 9, 2006
Hi ,
In a stored procedure when retrieving records based on a DATETIME values in WHERE clause - can we use BETWEEN clause or Col <= AND Col >= ?
Please suggest which is the optimised way.
Thanks in Advance,
Hari Haran Arulmozhi
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Mar 21, 2007
Hi I just got a paging procedure from the internet and it’s working just fine, but I would like to return the numbers of pages too. So I used the Count() function to retrieve all records on the table and divided by the page size, but even I doing with float number, this is returning a integer number. I just started with SQL Server, does some knows what is wrong with the following code? or knows a better way to do it.
Declare @Records int,
@Pages float,
@hey int
Set @Records = (Select Count(*) as 'Friends' From friends
Set @Pages = ((@Records) / (@PageSize))
Set @hey = (@Pages)
if @Pages > @hey
begin
@Pages = @Pages + 1
end
return @Pages
Thank you very much.
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Jun 12, 2006
Hi ,
when
operator = then index SEEK
operator <> then index SCAN
Is normal ?
Example
SELECT *
FROM dbo.Batch
WHERE (Status = 'Batch Completed')
(1 row(s) affected)
StmtText
---------------------------------------------------------------------------------------------------------------------------------
|--Bookmark Lookup(BOOKMARK:([Bmk1000]), OBJECT:([PriceAvisPr].[dbo].[Batch]))
|--Index Seek(OBJECT:([PriceAvisPr].[dbo].[Batch].[IX_Batch]), SEEK:([Batch].[Status]='Batch Completed') ORDERED FORWARD)
StmtText
---------------------------------------------------------------------------------
SELECT *
FROM dbo.Batch
WHERE (Status <> 'Batch Completed')
(1 row(s) affected)
StmtText
------------------------------------------------------------------------------------------------------------------------
|--Clustered Index Scan(OBJECT:([PriceAvisPr].[dbo].[Batch].[PK_Batch]), WHERE:([Batch].[Status]<>'Batch Completed'))
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Oct 28, 2005
95% of our DB Calls are in STored Procedures, however there are a few that we're finding hard to convert.
Example:
string strSQL = "Some Big *** SQL query with 8 inner joins";
If(Some Variable == something)
strSQL += "AND ...':
if(Something == somethingElse)
strSQL += " AND (this > that OR this <= other + 1);
so on and so forth.
Is it possible to put these types of statements in a Stored Procedure so I can get this out of code?
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Jul 22, 2007
What am I missing? I can only select 1 operator to inform.
Should an 'operator' be redefined to have multiple addresses, if so, how should they be delimited?
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Oct 13, 2006
Hi,
I have an implementation of the UDT - 3-dimentional vector. In my code I have implemented add, subtract and multiply methods for the type. I have also implemented overloaded operators for +/-/* in my C# code. Those overloaded operator are working as expected in C# tests. However when I€™m trying to use +/-/* operators in T-SQL over my UDT it returns the following error:
Invalid operator for data type. Operator equals add, type equals Vector.
The following fragment does work:
DECLARE @v1 Vector, @v2 Vector, @v3 Vector;
SELECT @v1 = CAST('1,1,1' as Vector), @v2 = CAST('2,2,2' as Vector)
SELECT @v1 'v1', @v2 'v2', @v1.[Add](@v2) 'v1 + v2'
And this fragment does not work:
DECLARE @v1 Vector, @v2 Vector, @v3 Vector;
SELECT @v1 = CAST('1,1,1' as Vector), @v2 = CAST('2,2,2' as Vector)
SELECT @v1 'v1', @v2 'v2', @v1+@v2 'v1 + v2'
I guess that SQL Server is not aware of the operators€™ overload I have implemented in the C# code. Is there any way to instruct SQL Server to use overloaded operators in the T-SQL so the code will look naturally @a + @b instead of @a.[Add](@b) and as a result use standard summary functions SUM() instead of writing user defined aggregate function for the Vector type field?
Maxim
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Jan 26, 2007
Hi there,
I'm not sure which section this really comes under and I think 'availability/disaster recovery' is probably the most applicable, sorry if it isn't.
I have SQL Server 2005 set-up and about 50 jobs listed, now, these jobs were configured before an operators with alerting by email was set-up... so, none of the jobs when fail alert an operator.
Is there any way I can automate a solution so if any job fails a designated/or default operator will be emailed and told what happened? Or would I need to edit each job manually to set this?
Thanks
Ed
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Jun 19, 2012
I've got a subquery that keeps throwing up an error but I can’t think of another way of completing the query.
Firstly I need to find records where TestQty =3
(this would find 2 records with TestQty =3, TestNumber, 7171003 and 7088650)
The TestNumber is not unique so I would like the final set of records to include all the records with TestNumber, 7171003 and 7088650
TestNumberTestQty
7088650____________3
7088650____________1
7088650____________2
7088650____________1
7088650____________2
7171003____________1
7171003____________3
7171003____________2
Code below:
[Code SQL]
USE TestWarehouse
IF ('dbo.TestItems') IS NOT NULL
DROP TABLE [dbo].[TestItems];
GO
CREATE TABLE [dbo].[TestItems]
( TestItem int not null IDENTITY (1,1)
[Code] .....
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Sep 14, 2006
I'm trying to put an expression into a view query column. I've already created a column which contains the results of a calculation in the form of an expression. What I don't know how to do is use comparison operators to return a boolean value for display. I'll give some examples of what I'm trying to do, using literal values just to simplify things...
So say I want to display the result of an expression in a view query column, as a boolean value (or BIT), as True or False. I've tried putting the following expressions into the column and none work:
4 < 5: Access converts this to the string '4 < 5' and it's just displayed as a string.
CAST( '4 < 5' AS BIT ): When run, the query displays the error 'Syntax error converting the varchar value '4 < 5' to a column of data type BIT.
Although I'm using Access 2003, It's just a front end for a SQL Server 2000 database. The actual SQL statement containing the latter SQL function is:
SELECT dbo.Tapes.No, dbo.Tapes.Status, dbo.Tapes.LastWrittenDate, dbo.Tapes.Pool, dbo.Tapes.Location, dbo.TapeJobs.No AS Expr1, dbo.TapeJobs.JobNo,
dbo.TapeJobs.TapeNo, dbo.Jobs.No AS Expr2, dbo.Jobs.Date, dbo.Jobs.Successful, dbo.Jobs.RetentionRule, dbo.RetentionRules.No AS Expr3,
dbo.RetentionRules.Name, dbo.RetentionRules.Description, dbo.RetentionRules.RetentionPeriod, dbo.RetentionRules.RetentionCycles,
dbo.Jobs.Date + dbo.RetentionRules.RetentionPeriod AS AgedJob, CAST('4 < 5' AS BIT) AS Expr4
FROM dbo.RetentionRules INNER JOIN
dbo.Jobs ON dbo.RetentionRules.No = dbo.Jobs.RetentionRule RIGHT OUTER JOIN
dbo.Tapes RIGHT OUTER JOIN
dbo.TapeJobs ON dbo.Tapes.No = dbo.TapeJobs.TapeNo ON dbo.Jobs.No = dbo.TapeJobs.JobNo
I'm new to SQL. I think the CAST function is the way forward, but I just don't know how to force it to resolve the expression '4 < 5'.
Can someone please help ?
--
Paul Anderson
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Dec 29, 2007
Hi:
I am trying to create a stored procedure that filters some customers. The field in wich I am trying to apply the filter is the age field. The problem is that I need to be able to select the comparison operator =,<,>,=<,>=,<>.
I was trying to do it with the following code:
Select CustomerName From Customer Where
(CustomerAge & @Operator & @Age)
But sql Server shows an error telling me that @Operartor couldnt be converted to int.
I dont know if I am in the right track or way off, how is this done?
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Apr 14, 2008
Hi everybody:
I want know where can I find information about valid expresion types for each one of de Arithmetic Operators, Bitwise Operators, Comparison Operators, Logical Operators, Unary Operators in SQL server. I want something like this.
for (+) ADD, syntaxis -> expression + expression
expression Valid? result type
-----------------------------------------------------------------
int + int ok int
int + bigint ok bigint
char + char ok char <- (+) works like concatenation
char + int ok char???
image + bit error -
binary + int ok binary???
for (*) MULTIPLY, syntaxis -> expression * expression
expression Valid? result type
-----------------------------------------------------------------
int * int ok int
int * bigint ok bigint
char * char error -
char * int error -
image + bit error -
binary + int ok binary????
for (<) LESS THAN, syntaxis -> expresion < expression
expression Valid? result type
-----------------------------------------------------------------
int < int ok bit???
char < char ok bit???
char < int ok bit???
image < bit error -
tks for help.
Jack
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Jul 24, 2007
Hello, how do you setup a Profiler filter, that has mixed AND/OR operators. Thru the Profiler GUI, I don't even see how you would ask for any statement/proc with READS over 10,000 OR DURATION over 1000ms. How do you do an "OR" thru the GUI?
Forgetting the GUI and doing traces thru scripts, the @logical_operator isn't too logical, and I can't find any description for setting this parameter. If you only have one filter, it doesn't matter if you set it to 0 (AND) or to 1 (OR)... But if you want multiple filters, so one filter is Reads >= 10,000 and the other filter is Duration >= 1000ms., how do you do that? I tried it with the @logical_operator of "1" on both, but then I also got other events with a NULL value in READS.
Code Snippet
-- @traceID = 1
-- @columnID = 13 (Duration)
-- @logicalOperator = 1 (OR)
-- @comparison_operator = 4 (greater or equal)
-- @value = 1000000 (1000 ms)
sp_trace_setfilter 1, 13, 1, 4, 1000000
-- @traceID = 1
-- @columnID = 16 (Reads)
-- @logicalOperator = 1 (OR)
-- @comparison_operator = 4 (greater or equal)
-- @value = 10000 (# Reads)
sp_trace_setfilter 1, 16, 1, 4, 10000
Looks like DURATION is never NULL for these events>>>
RPC:Completed
SP:Completed
SPtmtCompleted
SQL:BatchCompleted
SQLtmtCompleted
but the READS value cane be null (for SP:Completed at least).
Any ideas on how to mix AND/OR operators in multiple filters of one trace?
Thanks, Bruce
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May 26, 2006
I was playing around with the new SQL 2005 CLR functionality andremembered this discussion that I had with Erland Sommarskog concerningperformance of scalar UDFs some time ago (See "Calling sp_oa* infunction" in this newsgroup). In that discussion, Erland made thefollowing comment about UDFs in SQL 2005:[color=blue][color=green]>>The good news is that in SQL 2005, Microsoft has addressed several of[/color][/color]these issues, and the cost of a UDF is not as severe there. In fact fora complex expression, a UDF in written a CLR language may be fasterthanthe corresponding expression using built-in T-SQL functions.<<I thought the I would put this to the test using some of the same SQLas before, but adding a simple scalar CLR UDF into the mix. The testinvolved querying a simple table with about 300,000 rows. Thescenarios are as follows:(A) Use a simple CASE function to calculate a column(B) Use a simple CASE function to calculate a column and as a criterionin the WHERE clause(C) Use a scalar UDF to calculate a column(D) Use a scalar UDF to calculate a column and as a criterion in theWHERE clause(E) Use a scalar CLR UDF to calculate a column(F) Use a scalar CLR UDF to calculate a column and as a criterion inthe WHERE clauseA sample of the results is as follows (time in milliseconds):(295310 row(s) affected)A: 1563(150003 row(s) affected)B: 906(295310 row(s) affected)C: 2703(150003 row(s) affected)D: 2533(295310 row(s) affected)E: 2060(150003 row(s) affected)F: 2190The scalar CLR UDF function was significantly faster than the classicscalar UDF, even for this very simple function. Perhaps a more complexfunction would have shown even a greater difference. Based on this, Imust conclude that Erland was right. Of course, it's still faster tostick with basic built-in functions like CASE.In another test, I decided to run some queries to compare built-inaggregates vs. a couple of simple CLR aggregates as follows:(G) Calculate averages by group using the built-in AVG aggregate(H) Calculate averages by group using a CLR aggregate that similatesthe built-in AVG aggregate(I) Calculate a "trimmed" average by group (average excluding highestand lowest values) using built-in aggregates(J) Calculate a "trimmed" average by group using a CLR aggregatespecially designed for this purposeA sample of the results is as follows (time in milliseconds):(59 row(s) affected)G: 313(59 row(s) affected)H: 890(59 row(s) affected)I: 216(59 row(s) affected)J: 846It seems that the CLR aggregates came with a significant performancepenalty over the built-in aggregates. Perhaps they would pay off if Iwere attempting a very complex type of aggregation. However, at thispoint I'm going to shy away from using these unless I can't find a wayto do the calculation with standard SQL.In a way, I'm happy that basic SQL still seems to be the fastest way toget things done. With the addition of the new CLR functionality, Isuspect that MS may be giving us developers enough rope to comfortablyhang ourselves if we're not careful.Bill E.Hollywood, FL------------------------------------------------------------------------- table TestAssignment, about 300,000 rowsCREATE TABLE [dbo].[TestAssignment]([TestAssignmentID] [int] NOT NULL,[ProductID] [int] NULL,[PercentPassed] [int] NULL,CONSTRAINT [PK_TestAssignment] PRIMARY KEY CLUSTERED([TestAssignmentID] ASC)--Scalar UDF in SQLCREATE FUNCTION [dbo].[fnIsEven](@intValue int)RETURNS bitASBEGINDeclare @bitReturnValue bitIf @intValue % 2 = 0Set @bitReturnValue=1ElseSet @bitReturnValue=0RETURN @bitReturnValueEND--Scalar CLR UDF/*using System;using System.Data;using System.Data.SqlClient;using System.Data.SqlTypes;using Microsoft.SqlServer.Server;public partial class UserDefinedFunctions{[Microsoft.SqlServer.Server.SqlFunction(IsDetermini stic=true,IsPrecise=true)]public static SqlBoolean IsEven(SqlInt32 value){if(value % 2 == 0){return true;}else{return false;}}};*/--Test #1--Scenario A - Query with calculated column--SELECT TestAssignmentID,CASE WHEN TestAssignmentID % 2=0 THEN 1 ELSE 0 END ASCalcColumnFROM TestAssignment--Scenario B - Query with calculated column as criterion--SELECT TestAssignmentID,CASE WHEN TestAssignmentID % 2=0 THEN 1 ELSE 0 END ASCalcColumnFROM TestAssignmentWHERE CASE WHEN TestAssignmentID % 2=0 THEN 1 ELSE 0 END=1--Scenario C - Query using scalar UDF--SELECT TestAssignmentID,dbo.fnIsEven(TestAssignmentID) AS CalcColumnFROM TestAssignment--Scenario D - Query using scalar UDF as crierion--SELECT TestAssignmentID,dbo.fnIsEven(TestAssignmentID) AS CalcColumnFROM TestAssignmentWHERE dbo.fnIsEven(TestAssignmentID)=1--Scenario E - Query using CLR scalar UDF--SELECT TestAssignmentID,dbo.fnIsEven_CLR(TestAssignmentID) AS CalcColumnFROM TestAssignment--Scenario F - Query using CLR scalar UDF as crierion--SELECT TestAssignmentID,dbo.fnIsEven_CLR(TestAssignmentID) AS CalcColumnFROM TestAssignmentWHERE dbo.fnIsEven(TestAssignmentID)=1--CLR Aggregate functions/*using System;using System.Data;using System.Data.SqlClient;using System.Data.SqlTypes;using Microsoft.SqlServer.Server;[Serializable][Microsoft.SqlServer.Server.SqlUserDefinedAggregate (Format.Native)]public struct Avg{public void Init(){this.numValues = 0;this.totalValue = 0;}public void Accumulate(SqlDouble Value){if (!Value.IsNull){this.numValues++;this.totalValue += Value;}}public void Merge(Avg Group){if (Group.numValues > 0){this.numValues += Group.numValues;this.totalValue += Group.totalValue;}}public SqlDouble Terminate(){if (numValues == 0){return SqlDouble.Null;}else{return (this.totalValue / this.numValues);}}// private accumulatorsprivate int numValues;private SqlDouble totalValue;}[Serializable][Microsoft.SqlServer.Server.SqlUserDefinedAggregate (Format.Native)]public struct TrimmedAvg{public void Init(){this.numValues = 0;this.totalValue = 0;this.minValue = SqlDouble.MaxValue;this.maxValue = SqlDouble.MinValue;}public void Accumulate(SqlDouble Value){if (!Value.IsNull){this.numValues++;this.totalValue += Value;if (Value < this.minValue)this.minValue = Value;if (Value > this.maxValue)this.maxValue = Value;}}public void Merge(TrimmedAvg Group){if (Group.numValues > 0){this.numValues += Group.numValues;this.totalValue += Group.totalValue;if (Group.minValue < this.minValue)this.minValue = Group.minValue;if (Group.maxValue > this.maxValue)this.maxValue = Group.maxValue;}}public SqlDouble Terminate(){if (this.numValues < 3)return SqlDouble.Null;else{this.numValues -= 2;this.totalValue -= this.minValue;this.totalValue -= this.maxValue;return (this.totalValue / this.numValues);}}// private accumulatorsprivate int numValues;private SqlDouble totalValue;private SqlDouble minValue;private SqlDouble maxValue;}*/--Test #2--Scenario G - Average Query using built-in aggregate--SELECT ProductID, Avg(Cast(PercentPassed AS float))FROM TestAssignmentGROUP BY ProductIDORDER BY ProductID--Scenario H - Average Query using CLR aggregate--SELECT ProductID, dbo.Avg_CLR(Cast(PercentPassed AS float)) AS AverageFROM TestAssignmentGROUP BY ProductIDORDER BY ProductID--Scenario I - Trimmed Average Query using built in aggregates/setoperations--SELECT A.ProductID,CaseWhen B.CountValues<3 Then NullElse Cast(A.Total-B.MaxValue-B.MinValue ASfloat)/Cast(B.CountValues-2 As float)End AS AverageFROM(SELECT ProductID, Sum(PercentPassed) AS TotalFROM TestAssignmentGROUP BY ProductID) ALEFT JOIN(SELECT ProductID,Max(PercentPassed) AS MaxValue,Min(PercentPassed) AS MinValue,Count(*) AS CountValuesFROM TestAssignmentWHERE PercentPassed Is Not NullGROUP BY ProductID) BON A.ProductID=B.ProductIDORDER BY A.ProductID--Scenario J - Trimmed Average Query using CLR aggregate--SELECT ProductID, dbo.TrimmedAvg_CLR(Cast(PercentPassed AS real)) ASAverageFROM TestAssignmentGROUP BY ProductIDORDER BY ProductID
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Mar 16, 2014
I am in the midst of writing a query to return a range of product BIN LOCATIONS from a warehouse stock levels program.I know the start and end BIN LOCATIONS for the warehouse, e.g.: Start - #00000, and End - Z10000.However I cannot hard code these into the program, instead I want my operator to designate the first letter of both the start and end BINS locations, and then hit the 'go button'.Towards this end I have declared a couple of variables in my SQL, as follows -
Code:
declare @strBin varchar(10)
set @strBin = ''
if @strBin = ''
set @strBin = '#%'
declare @endBin varchar(10)
if @endBin = ''
set @endBin = 'z%'
My challenge is writing a relevant WHERE clause for my select statement, I have tried the following -
Code:
where BINLOCAT.BINLABEL between @strBin and @endBin
order by BINLOCAT.BINLABEL
Whilst the clause above does not cause any errors, neither does it return any results.My first thought is that the BETWEEN operator does not accept wildcards. But if this is correct then how do I go about allowing an operator to enter the start, and end BINS without typing the entire BIN string (e.g.: #00000)? I have tried >= @strBin and <= @endBin, but I am having a similar issue with no errors, and no data returned.
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Mar 1, 2015
We can use comparison operators with strings as well. Hence, I tried to use the following query on a SQL Server 2012 instance with the sample AdventureWorks2012 database (the collation of the database and of the column is the default:
SQL_Latin1_General_CP1_CI_AS):
USE AdventureWorks2012 ;
GO
--Returns 5 records
SELECT pp.Name
FROM Production.Product AS pp
WHERE pp.Name >= N'Short' AND pp.Name <= N'Sport' ;
GO
The query only returns 5 records. This despite the fact that the search is an inclusive search and the Production.Product table contains records that begin with "Sport".
Now, when I replace "Sport" with "Sporu" (just moving one character up in the alphabet to verify whether characters after the word have any impact on the search) gives me 8 records.
USE AdventureWorks2012 ;
GO
--Returns 8 records
SELECT pp.Name
FROM Production.Product AS pp
WHERE pp.Name >= N'Short' AND pp.Name <= N'Sporu' ;
GO
What's going on inside of SQL Server that allows it to fetch "Short-Sleeve Classic Jersey" for the starting word "Short" but prevents it from fetching "Sport-100 Helmet" for the ending word "Sport" despite the search being an inclusive search?
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Aug 7, 2015
I have a problem at the moment, where the client wants to be able to type in a custom algebraic formula with add/minus operators, and then to have this interpreted, so that the related datasets are then added and returned as a single dataset.
An example would be having a formula stored of [a] + [b] - [c]
and if I were to write the SQL to apply that formula, I might write something like (let's assume 1:1 relationships with the ID's)
select a.a + b.b - c.c as [result]
from z
inner join tblA a on z.id = a.id
inner join tblB b on z.id = b.id
inner join tblC c on z.id = c.id
The formula can change though, maybe things like:
[a] + [b] + [c] + [d]
[a] + [b]
The developer before me wrote something SQL-based where they parsed the string and assigned each value of the formula as either positive or negative (e.g A is positive, B is positive, C is negative, now sum the datasets to get the result), and then created one large table of values then summed them. This does (kind of) work, I'm just contemplating potential alternatives, as it is quite a slow process, and feels like it is quite convoluted, when I get into the details. If I were to do something like this in SQL, I'd normally want each part of the expression to be a column, and then to just apply the operators, but because the formula can change, then the SQL would need to be somehow dynamic for this approach.
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Oct 11, 2015
DECLARE @Teams AS TABLE(Team VARCHAR(3))
INSERT INTO @Teams
SELECT 'IND'
UNION
SELECT 'SA'
UNION
SELECT 'AUS'
select Team from @Teams where Team > 'AUS'
[code]....
co-relation between comparison operators in WHERE Clause and the respective output.
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May 20, 2008
Why does the following call to a stored procedure get me this error:
Msg 156, Level 15, State 1, Line 1
Incorrect syntax near the keyword 'CONVERT'.
Code Snippet
EXECUTE OpenInvoiceItemSP_RAM CONVERT(DATETIME,'01-01-2008'), CONVERT(DATETIME,'04/30/2008') , 1,'81350'
The stored procedure accepts two datetime parameters, followed by an INT and a varchar(10) in that order.
I can't find anything wrong in the syntax for CONVERT or any nearby items.
Help me please. Thank you.
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Dec 14, 2003
I keep receiving the following error whenever I try and call this function to update my database.
The code was working before, all I added was an extra field to update.
Exception Details: System.Data.SqlClient.SqlException: Incorrect syntax near the keyword 'WHERE'
Public Sub MasterList_Update(sender As Object, e As DataListCommandEventArgs)
Dim strProjectName, txtProjectDescription, intProjectID, strProjectState as String
Dim intEstDuration, dtmCreationDate, strCreatedBy, strProjectLead, dtmEstCompletionDate as String
strProjectName = CType(e.Item.FindControl("txtProjectName"), TextBox).Text
txtProjectDescription = CType(e.Item.FindControl("txtProjDesc"), TextBox).Text
strProjectState = CType(e.Item.FindControl("txtStatus"), TextBox).Text
intEstDuration = CType(e.Item.FindControl("txtDuration"), TextBox).Text
dtmCreationDate = CType(e.Item.FindControl("txtCreation"),TextBox).Text
strCreatedBy = CType(e.Item.FindControl("txtCreatedBy"),TextBox).Text
strProjectLead = CType(e.Item.FindControl("txtLead"),TextBox).Text
dtmEstCompletionDate = CType(e.Item.FindControl("txtComDate"),TextBox).Text
intProjectID = CType(e.Item.FindControl("lblProjectID"), Label).Text
Dim strSQL As String
strSQL = "Update tblProject " _
& "Set strProjectName = @strProjectName, " _
& "txtProjectDescription = @txtProjectDescription, " _
& "strProjectState = @strProjectState, " _
& "intEstDuration = @intEstDuration, " _
& "dtmCreationDate = @dtmCreationDate, " _
& "strCreatedBy = @strCreatedBy, " _
& "strProjectLead = @strProjectLead, " _
& "dtmEstCompletionDate = @dtmEstCompletionDate, " _
& "WHERE intProjectID = @intProjectID"
Dim myConnection As New SqlConnection(System.Configuration.ConfigurationSettings.AppSettings("connectionstring"))
Dim cmdSQL As New SqlCommand(strSQL, myConnection)
cmdSQL.Parameters.Add(new SqlParameter("@strProjectName", SqlDbType.NVarChar, 40))
cmdSQL.Parameters("@strProjectName").Value = strProjectName
cmdSQL.Parameters.Add(new SqlParameter("@txtProjectDescription", SqlDbType.NVarChar, 30))
cmdSQL.Parameters("@txtProjectDescription").Value = txtProjectDescription
cmdSQL.Parameters.Add(new SqlParameter("@strProjectState", SqlDbType.NVarChar, 30))
cmdSQL.Parameters("@strProjectState").Value = strProjectState
cmdSQL.Parameters.Add(new SqlParameter("@intEstDuration", SqlDbType.NVarChar, 60))
cmdSQL.Parameters("@intEstDuration").Value = intEstDuration
cmdSQL.Parameters.Add(new SqlParameter("@dtmCreationDate", SqlDbType.NVarChar, 15))
cmdSQL.Parameters("@dtmCreationDate").Value = dtmCreationDate
cmdSQL.Parameters.Add(new SqlParameter("@strCreatedBy", SqlDbType.NVarChar, 10))
cmdSQL.Parameters("@strCreatedBy").Value = strCreatedBy
cmdSQL.Parameters.Add(new SqlParameter("@strProjectLead", SqlDbType.NVarChar, 15))
cmdSQL.Parameters("@strProjectLead").Value = strProjectLead
cmdSQL.Parameters.Add(new SqlParameter("@dtmEstCompletionDate", SqlDbType.NVarChar, 24))
cmdSQL.Parameters("@dtmEstCompletionDate").Value = dtmEstCompletionDate
cmdSQL.Parameters.Add(new SqlParameter("@intProjectID", SqlDbType.NChar, 5))
cmdSQL.Parameters("@intProjectID").Value = intProjectID
myConnection.Open()
cmdSQL.ExecuteNonQuery
myConnection.Close()
MasterList.EditItemIndex = -1
BindMasterList()
End Sub
Thankyou in advance.
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