Hi all, I have a sql problem i'd like to put to the masses because its driving me crazy! Before I start, this is a database i inherited so I cant change the schema.
I have a table which holds field information for a form, namely the table name, column name and some other irrelevant stuff (X/Y coordinates for printing onto a document). Here is some sample data to explain better:
What I need is a calculated field which returns the value of each field from each table €“ probably by constructing a dynamic sql statement(?) It would look something like this:
Select @FieldName From @TableName Where bla bla bla €“ don€™t worry about the where clause. The completed dataset will hopefully then look like this:
I have tried creating a scalar-valued function which takes TableName and FieldName as parameters and creates a dynamic sql string, but i cannot seem to execute the sql once I have built it. Here is a general idea of how I was trying to use the function:
Main query:Select
TableName, FieldName, Xpos, Ypos,
dbo.GetFieldValue(TableName, FieldName) As FieldValue
From
tblFieldAndPosition---------------Function: CREATE FUNCTION GetFieldValue (@TableName nvarchar(255),@FieldName nvarchar(255))
RETURNS nvarchar(255)
AS
BEGIN
Declare @SQL nvarchar(max)
Set @SQL = 'Select ' + @FieldName + ' From ' + @TableName
sp_executesql @SQL??
return ???
END ------------------------- The alternative to getting this data all out at once is contructing the sql statement in code and going back to the database once for every row - which i really dont want to do. If anyone has had a situation like this before, or can point me in the right direction I will be very very grateful. Hope thats clear. Thanks in advance
Hi all, I have a sql problem i'd like to put to the masses because its driving me crazy! Before I start, this is a database i inherited so I cant change the schema. I have a table which holds field information for a form, namely the table name, column name and some other irrelevant stuff (X/Y coordinates for printing onto a document). Here is some sample data to explain better: TableName FieldName Xpos Ypos ---------- --------- ----- ----- FruitTable FruitName 10 20 VegTable VegName 10 40 FruitTable FruitColour 20 10 (Thats not the real data of course) What I need is a calculated field which returns the value of each field from each table – probably by constructing a dynamic sql statement(?) It would look something like this: Select @FieldName From @TableName Where bla bla bla – don’t worry about the where clause. The completed dataset will hopefully then look like this: TableName FieldName Xpos Ypos FieldValue (calculated field) ---------- --------- ----- ----- --------- FruitTable FruitName 10 20 Oranges (result of: Select FruitName From FruitTable Where....) VegTable VegName 10 40 Parsnips (result of: Select VegName From VegTable Where....) FruitTable FruitColour 20 10 Green (result of: Select FruitColour From FruitTable Where....)
I have tried creating a scalar-valued function which takes TableName and FieldName as parameters and creates a dynamic sql string, but i cannot seem to execute the sql once I have built it. Here is a general idea of how I was trying to use the function: Main query:Select TableName, FieldName, Xpos, Ypos, dbo.GetFieldValue(TableName, FieldName) As FieldValue From tblFieldAndPosition---------------Function: CREATE FUNCTION GetFieldValue (@TableName nvarchar(255),@FieldName nvarchar(255))
RETURNS nvarchar(255) AS BEGIN
Declare @SQL nvarchar(max) Set @SQL = 'Select ' + @FieldName + ' From ' + @TableName
sp_executesql @SQL??
return ???
END ------------------------- The alternative to getting this data all out at once is contructing the sql statement in code and going back to the database once for every row - which i really dont want to do. If anyone has had a situation like this before, or can point me in the right direction I will be very very grateful. Hope thats clear. Thanks in advance
I have a procedure that take several paramters and depending of whatvalues is submitted or not, the procedures shall return differentnumber of rows. But to simplyfy this my example use just oneparameter, for example Idnr.If this id is submitted then I will return only the posts with thisidnr, but if this is not submitted, I will return all posts in table.As I can see I have two options1. IF @lcIdNr IS NOT NULLSELECT *FROM tableWHERE idnr = @lcIdNrELSESELECT *FROM table2. Use dynamic SQL.The first example can work with just one parameter but with a coupleof different input paramters this could be difficult, anyway this isnot a good solution. The second example works fine but as I understanddynamic sql is not good from the optimizing point of view. So, I don'twant to use either of theese options, so I wonder If there i a way towork around this with for example a case clause?RegardsJenny
I have 3 tables: Authors, Employee and Stores. I need to create a stored procedure which will take 3 comma delimited parameters, to be able to query above 3 tables. Basically my front end user can say give me Authors with last name starting from ‘A,B’ and Employee with first name starting from ‘J,N,K’ and Stores with city starting from ‘New, Los’. So, stored procedure call will look like this Exec myStoredProcedure 'A,B' , 'J,N,K', 'New,Los' .
My question is, how should I handle WHERE clause in stored procedure if I don’t want it to be a “dynamic WHERE�.
I am unfortunately lumered with a table I cannot edit that stores a division 2 characters along with boolean fields '0506', '0607', '0708' ... (academic years) to represent if that particular division is active in the current academic year. This has made me have to resort to dynamic sql within a stored procedure to input the appropriate field names.
Is there a better way to do it, it's not mission critical to make it not use dynamic sql but I would prefer not to.
Hi i have a problem i have the following Trans SQL statement in afunctionSET @desc= (Select description From table Where id = @id)Now i want to make table dynamic. Something like thisSET @desc= (Select description From @table Where id = @id)Yeah yeah i know i can't do this:SET @desc= EXEC('Select description From '+ @table + ' Where id = '+@id)is not possibleWriting to a temporary table is prohibited by functions. But i need afunction because i want to use the result in a query..Can someone help me?Hennie
i want to know if i can use dynamic sql in a function like this:
ALTER FUNCTION [dbo].[udf_GetGradeAvgByNewHireID] @CourseIDs VARCHAR(MAX), @NewHireID INT ) RETURNS INT AS BEGIN
/* 1. The CourseIDs passed to this function will be in the form ",1,2,3," 2. Replace the first and last comma with () so we will have "(1,2,3)" 3. Use this with the IN clause to filter out the right classes for these IDs */
DECLARE @SQL VARCHAR(MAX);
--grade average DECLARE @GradeAvg INT;
--formatting the string to be in the form (1,2,3) from ,1,2,3,4, SET @CourseIDs = '|' + @CourseIDs + '|'; SET @CourseIDs = REPLACE(@CourseIDs,'|,','('); SET @CourseIDs = REPLACE(@CourseIDs,',|',')');
SET @SQL = 'SELECT @GradeAvg = AVG(NHC.Class_Grade) FROM New_Hires_Classes NHC INNER JOIN Classes Cls ON NHC.Class_ID=Cls.Class_ID WHERE Cls.Course_ID IN ' + @CourseIDs + ' AND NHC.New_Hire_ID=@NewHireID'; EXECUTE @SQL
RETURN @GradeAvg
becase when i try to call this function from the query i get this error:
The name 'SELECT @GradeAvg = AVG(NHC.Class_Grade) FROM New_Hires_Classes NHC INNER JOIN Classes Cls ON NHC.Class_ID=Cls.Class_ID WHERE Cls.Course_ID IN (1,2,3,4,5,6) AND NHC.New_Hire_ID=@NewHireID' is not a valid identifier.
Is it possible to write dynamic sql on scalar function and assign the value to return value? I like some thing like below but it is not working... Thanks ______________________________________________________________________ set @sql = 'select @CallLegKey= min(calllegkey) as CallLegKey from rt_'+@platform+'_CallLegs where datediff(day,convert(datetime, CallEndTime) ,'''+cast(@today as varchar(20))+''') = '+cast(@cutoff as varchar(5)) exec @sql
I'm very new to SQL Server. Please help. I need to create a FUNCTION that creates a view. Then call this function in a SQL which is passed as a parameter to BCP. In Oracle, it would be something like:
create function CREATEVIEW
return number as
begin
create view SampleView as SELECT a,b,c from Mytable;
return 1;
when others then return 0; -- for exception handling
end:
create function DROPVIEW
return number as
begin
Drop view SampleView;
return 1;
when others then return 0; -- for exception handling
end:
Then my BCP will have something like:
BCP "select CREATEVIEW from dual"... QUERYOUT ..
then
BCP "select * from SampleView"... QUERYOUT ..
then drop the view again:
BCP "select DROPVIEW from dual"... QUERYOUT ..
I know there is no DUAL table in SQL SERVER. I just want to know how to code this in SQL Server.
The origin of my problem is that my SQL statement is too long to fit as BCP parameter, hence, am creating a view and reading there and dropping it again. If you can provide me with a better workaround, that would be great. Thanks in advance.
I am looking for assistance coming up with a function (or maybe not a function if there is a better way) to make the Status column in my order table dynamic. The default value for new records will always be "1" to designate a quote. At this point the field is not dynamic. Once the customer confirms the order, the user needs to execute a command to change the status to "3" to designate a Confirmed order. At this point the field needs to be dynamic based on the shipping records. There are two order details tables. One for sales items and one for rental items. Each of these details tables has their own shipping record. the CheckInOut Tables are for rental while the Ship tables are for sales. So, if some (but not all) of the items in either of these order details tables has a shipping record associated with it, then the status should be changed to "5". If everything has been shipping, the status is changed to "4". If everything has been shipping but some items have been returned, the status is "6" if everything has been shipping and all of the RentalDetail items have been returned then the status is "7" and if there is any other combination of a variety of ships and returns, the status is "8". Also, at any time, the user needs to be able to execute a command to change the value to "2". once the value is changed to "2" the field stops being dynamic again.
Below are my tables creation commands.
CREATE TABLE OrderHeader ( OrderID int identity primary key, Status int, StartDate datetime, EndDate datetime )--Use Type 1 = "Quote" Type 2 = "Cancelled" Type 3 = "Confirmed", Type 4 = "Shipped", Type 5 = "Part Shipped", Type 6 = "Part Returned", Type 7 = "Returned, Type 8 = "Mixed" CREATE TABLE OrderRentalDetail ( OrderRentalDetailID int identity primary key, OrderID int FOREIGN KEY REFERENCES OrderHeader(OrderID), ItemName varchar(30), Qty int, SiteID int, ) CREATE TABLE CheckInOutHeader ( CheckInOutID int identity primary key, Type int, SiteID int, ActionDate datetime )--Use Type 1 = "Ship" Type 2 = "Return" Type 3 = "Lost" CREATE TABLE CheckInOutDetail ( CheckInOutDetailID int identity primary key, CheckInOutID int NOT NULL FOREIGN KEY REFERENCES ShipHeader(ShippingID), OrderRentalDetailID int, Qty int ) CREATE TABLE OrderSalesDetail ( OrderSalesDetailID int identity primary key, OrderID int FOREIGN KEY REFERENCES OrderHeader(OrderID), ItemName varchar(30), Qty int, SiteID int, ) CREATE TABLE ShipHeader ( ShippingID int identity primary key, Type int, SiteID int, ActionDate datetime )--Use Type 1 = "Ship" Type 2 = "Return" CREATE TABLE ShipDetail ( ShipDetailID int identity primary key, ShippingID int NOT NULL FOREIGN KEY REFERENCES ShipHeader(ShippingID), OrderSalesDetailID int, Qty int )
I have created a function that will check whether the data is null or not. If its null then it will display that as No data else it will display the original value. Below is the function
GO Object: UserDefinedFunction [dbo].[fnchkNull] Script Date: 3/4/2015 12:01:58 PM ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO
[code]...
The code is working good. However i want the return type to be dynamic. If the data type supplied is integer then i want to return a integer value like 0 if its null. if the data value is varchar then i want to return 'No Data'.
I want to write a function, which accept 3 parameters, 1 TableName 2 ColumnName 3 DateValue, and returns number of records in that table for that particular date(in parameter date), I have written below function but it is not returning the desired result.
CREATE FUNCTION dbo.[f_Rec_cnt] (@InTableName NVARCHAR(100), @InDtColName NVARCHAR(50), @InDate NVARCHAR(50) ) RETURNS INT
I'm trying to use the NEWID function in dynamic SQL and get an errormessage Incorrect syntax near the keyword 'ORDER'. Looks like I can'tdo an insert with an Order by clause.Here's the code:SELECT @SQLString = N'INSERT INTO TMP_UR_Randoms(Admit_DOCID,Client_ID, SelectDate, SelectType,RecordChosen)'SELECT @SQLString = @SQLString + N'(SELECT TOP ' + @RequFilesST + 'Admit_DOCID, Client_ID, SelectDate, SelectType, RecordChosen FROMFD__UR_Randoms 'SELECT @SQLString = @SQLString + N'WHERE SelectType = ' +@CodeRevTypeSt + ' AND SelectDate = ''' + @TodaySt + '''' + ' ORDERBY NEWID())'execute sp_executesql @SQLStringMy goal is to get a random percentage of records.The full SP follows. In a nutshell - I pull a set of records fromFD__Restart_Prog_Admit into a temporary table called FD__UR_Randoms.I need to retain the set of all records that COULD be eligible forselection. Based on the count of those records, I calculate how manyneed to be pulled - and then need to mark those records as "chosen".I'd just as soon not use the TMP_UR_Randoms table - I went that routebecause I ran into trouble with a #Tmp table in the above SQL.Can anyone help with this? Thanks in advance.Full SQL:CREATE PROCEDURE TP_rURRandomReview @ReviewType varchar(30)--Review type will fill using Crystal Parameter (setting defaults)AS/* 6.06.2007UR Requirements:(1) Initial 4-6 month review: 15% of eligible admissions(eligible via days in program and not yet discharged) must be reviewed4-6 months after admission. This review will be done monthly -meaning we'll have a moving target of names (with overlaps) whichcould be pulled from each month. (Minimum 5 records)(2) Subsequent 6-12 month review: Out of those already reviewed(in #1), we must review 25% of them (minimum of 5 records)(3) Initial 6-12 month review: Exclude any included in 1 or 2 -review 25% of admissions in program from 6-12 months (minimum 5)*/DECLARE @CodeRevType intDECLARE @PriorRec int -- number of records already markedeligible (in case user hits button more than once on same day for sametype of review)DECLARE @CurrRec int --number of eligible admitsDECLARE @RequFiles intDECLARE @SQLString nvarchar(1000)DECLARE @RequFilesSt varchar(100)DECLARE @CodeRevTypeSt char(1)DECLARE @TodayNotime datetimeDECLARE @TodaySt varchar(10)--strip the time off todaySELECT @TodayNotime = DateAdd(day,datediff(day,0,GetDate()),0)--convert the review type to a codeSelect @CodeRevType = Case @ReviewType when 'Initial 4 - 6 Month' then1 when 'Initial 6 - 12 Month' then 2 when 'Subsequent 6 - 12 month'then 3 END--FD__UR_Randoms always gets filled when this is run (unless it waspreviously run)--Check to see if the review was already pulled for this recordSELECT @PriorRec = (Select Count(*) FROM FD__UR_Randoms whereSelectType = @CodeRevType and SelectDate = @TodayNotime)If @PriorRec 0 GOTO ENDThis--************************************STEP A: Populate FD__UR_Randomstable with records that are candidates for review************************If @CodeRevType = 1BEGININSERT INTO FD__UR_Randoms (Admit_DOCID, Client_ID, SelectDate,SelectType,RecordChosen)(SELECT pa.OP__DOCID, pa.Client_ID,Convert(varchar(10),GetDate(),101) as SelectDate, @CodeRevType, 'F'FROM dbo.FD__RESTART_PROG_ADMIT paInner join FD__Client cOn pa.Client_ID = c.Client_IDWHERE Left(c.Fullname,2) <'TT' AND (Date_Discharge IS NULL)AND(DATEDIFF(d, Date_Admission, GETDATE()) 119)AND (DATEDIFF(d, Date_Admission, GETDATE()) <= 211)AND pa.OP__DOCID not in (Select Admit_DOCID from FD__UR_Randomswhere RecordChosen = 'T'))ENDIf @CodeRevType = 2--only want those that were selected in a batch 1 - in program 6-12months; selected for first reviewBEGININSERT INTO FD__UR_Randoms (Admit_DOCID, Client_ID, SelectDate,SelectType,RecordChosen)(SELECT pa.OP__DOCID, pa.Client_ID,Convert(varchar(10),GetDate(),101) as SelectDate, @CodeRevType, 'F'FROM dbo.FD__RESTART_PROG_ADMIT paInner join FD__Client cOn pa.Client_ID = c.Client_IDWHERE Left(c.Fullname,2) <'TT' AND (Date_Discharge IS NULL)AND(DATEDIFF(d, Date_Admission, GETDATE()) 211)AND (DATEDIFF(d, Date_Admission, GETDATE()) < 364)AND pa.OP__DOCID in (Select Admit_DOCID from FD__UR_Randomswhere SelectType = 1 AND RecordChosen= 'T'))ENDIf @CodeRevType = 3--only want those that were not in batch 1 or 2 - in program 6 to 12monthsBEGININSERT INTO FD__UR_Randoms (Admit_DOCID, Client_ID, SelectDate,SelectType,RecordChosen)(SELECT pa.OP__DOCID, pa.Client_ID,Convert(varchar(10),GetDate(),101) as SelectDate, @CodeRevType, 'F'FROM dbo.FD__RESTART_PROG_ADMIT paInner join FD__Client cOn pa.Client_ID = c.Client_IDWHERE Left(c.Fullname,2) <'TT' AND (Date_Discharge IS NULL)AND(DATEDIFF(d, Date_Admission, GETDATE()) 211)AND (DATEDIFF(d, Date_Admission, GETDATE()) < 364)AND pa.OP__DOCID NOT in (Select Admit_DOCID from FD__UR_Randomswhere SelectType < 3 AND RecordChosen= 'T'))ENDSELECT @CurrRec = (Select Count(*) FROM FD__UR_Randoms whereSelectType = @CodeRevType and SelectDate = @TodayNoTime)--*************************************STEP B Pick the necessarypercentage **************************************--if code type = 1, 15% otherwise 25%If @CodeRevType = 1BEGINSELECT @RequFiles = (@CurrRec * .15)ENDELSEBEGINSELECT @RequFiles = (@CurrRec * .25)END--make sure we have at least 5If @RequFiles < 5BEGINSELECT @RequFiles = 5End--*************************************STEP C Randomly select thatmany files**************************************--convert all variables to stringsSELECT @RequFilesSt = Convert(Varchar(100),@RequFiles)SELECT @CodeRevTypeSt = Convert(Char(1),@CodeRevType)SELECT @TodaySt = Convert(VarChar(10),@TodayNoTime,101)SELECT @SQLString = N'INSERT INTO TMP_UR_Randoms(Admit_DOCID,Client_ID, SelectDate, SelectType,RecordChosen)'SELECT @SQLString = @SQLString + N'(SELECT TOP ' + @RequFilesST + 'Admit_DOCID, Client_ID, SelectDate, SelectType, RecordChosen FROMFD__UR_Randoms 'SELECT @SQLString = @SQLString + N'WHERE SelectType = ' +@CodeRevTypeSt + ' AND SelectDate = ''' + @TodaySt + '''' + ' ORDERBY NEWID())'print @SQLStringexecute sp_executesql @SQLStringSELECT * FROM TMP_UR_Randoms/*--This select statement gives me what i want but I need to somehowmark these records and/or move this subset into the temp tableSelect Top @RequFilesFROM FD__UR_RandomsWHERE SelectType = @CodeRevType and SelectDate =Convert(varchar(10),GetDate(),101))ORDER BY NewID()*/ENDTHIS:GO
Hi, i am using the DTC in my code to connect to two different servers on the network through a SQL query which is unfortunately very slow; can u please guide me with an alternative for the same
SELECT *FROM organizationWHERE (departmentID = divisionID) AND (divisionID = branchID) AND(branchID = sectionID) AND (sectionID = unitID)Is there anyway I can make this query more simlified w/o repeating thesame column in the where clause?thankss/RC
Hi everyone, I'm trying to come up with a replacement for @@IDENTITY, because I have SQL code I want to make more portable.
Original:ID = MyDataLayer.Execute("INSERT INTO X(a,b,c) VALUES(A,B,C); SELECT @@IDENTITY") Proposed solution: lock(MyDataLayer) ID = MyDataLayer.Execute("SELECT MAX(id)+1 FROM X") if(ID==null) ID=1 MyDataLayer.Execute("INSERT INTO X(id,a,b,c) VALUES(ID,A,B,C)") unlock(MyDataLayer) (This is of course pseudocode, for SQL Server I'd need SET IDENTITY_INSERT.)
Do you think the preceding solution is equivalent to the original? Do you know something better?
Equivalent should mean here, not necessarily generating the same ID's, but maintaining functionality and consistence all over the database.
is there a way to get around not using USE in a PROCEDURE?
I need to because I have a main site that inserts information into other DB's that i use for various subdomains. But without being able to use USE i cant select which database is needed.
My company develops software that is distributed to thousands of customers. We chose MSDE as the database engine. Over the past 4 months, we have spent countless hours with customers, Microsoft, Installshield and web searches trying to resolve issues with installing MSDE. The issues seem to vary by customer and most take a great deal of support time. We understood MSDE to be a product that requires little support but in hindsight, it appears that it requires a great deal of knowledge just to get installed. We make small steps but no leaps forward.
It has come time to evaluate other products. If there is a magic bullet, I would love to hear about it. In its absence, does anyone have success to share with other products?
Just curious, is there any alternative to SQLXMLBULKLOAD for shredding and loading very large (800 megs) XML files ? Due to the nature of the XML data sent to me (which I have no control over)I am having great difficulty loading data into tables. More specifically, I can load parent data but not the child data beneath it despite using sql:relationships.
I have a situation where my SQL works everywhere else but my COBOL compiler complains wherever I use PARTITION BY. I can't find a workaround for that problem so I would like to remove all the PARTITION BYs. I'm not confident that I can do this accurately and would like some help getting started.
Here is my simplest example:
SELECT FESOR.REGION, FESOR.TYPE, COUNT(*) OVER (PARTITION BY FESOR.REGION, FESOR.TYPE) FROM FESOR, FR where FESOR.phase = 'Ref' and FESOR.assign is null and FESOR.comp_date is null and FESOR.region = FR.REGION and FESOR.type = FR.TYPE and FR.REP_ROW='A' GROUP BY FESOR.REGION, FESOR.TYPE
What I'm looking for is a modified version of the SQL above which returns the same result set without using PARTITION BY.
In a stored procedure I'm processing, via a cursor, a table of, potentially, 100,000 rows on a daily basis. The only column in each row is a 12-byte transaction control number. I know that using cursors can cause performance issues. Is there an alternative to using a cursor that has less of a performance impact ?
Cameron writes "Thanks for taking a look @ my question....
Basically, is there an alternative to indexing that maintains the fast searching capability (or possibly faster)?
We maintain over 500 databases on a single SQL server and currently (the way I am told) the server is limited to indexing 256 databases, so we have to basically create a new database with ALL the searchable data and use it for searches. While this works, it seems like there should be an alternate method. Any suggestions?
I work as a production dba and our development team are trying to push a project which involves using triggers. The aim is to transfer information between to databases (on two differents servers) because currently users have to type in the same info into the two different systems. The triggers will be defined on a couple of tables, checking for inserts, updates, deletes, and then insert this into staging tables within teh same database. However the trigger does more complex processing than just inserting the same records from the production table into the staging table. Because the schema between the source database and destination database is different, the trigger needs to do some manipulation before it updates the staging tables. It basically does massive selects from a number of different tables to get the desired column list & then puts that into the staging tables. We have basically asked them to reimplement this solution using other methods (such as timestamping the necessary tables and then putting the trigger login into a stored proc and scheduling it to run through a job).
However, we've found out the triggers make use of the 'deleted' and 'inserted' special trigger tables to compare new data to old data - i.e. not all inserts/updates/deletes need to be pushed to the staging tables - it depends on certain criteria based on this comparison of old and new data.....that throws a spanner in the works. What alternatives could provide this functionality, without just making the whole process a a headache to maintain - which is why we recommended not using triggers in the first place!!
Sorry for the long post - needed to explain the issue properly. Hopefully some of you will be able to provide some feedback - teh sooner the better as I have a meeting with the developers later today and would like to offer some alternatives.
Hi All,I want to pass XML and the data in the XML should be stored in thetables of the database. However, I do not want to use the OpenXMLstatement. Please let me know.Regards, Shilpa
I have a SSIS package that imports an Excel file using Visual Basic 2005 into my SQL 2005 database. All the fields are the same in the DB and xls. The package runs with no problem but I need one of the fields to be autoincrement. I tried to set up the properties of one of my fields "ID" to be an Identity. This didn't seem to work at all. There are about 1300 records in the DB so far with the last "ID" number being 10001415. Before now, the numbers were inputed manually. I want the "ID" to be assigned when the SSIS package imports the xls file.
I have several SCD components in my project. As I have to process millions of records, SCD's are taking a lot of time. Is there a way to speed them up? Work arounds?