Is there a way do disable/disallow implicit casting in Sql Server 2000?
Say for example:
if ' ' = 0 select getdate()
This wil print out the current date and time.
But ' ' (a string, varchar, whatever) is not the same type as 0 (say, int). Implicit casting is nice, but is there also an off switch?
Hi all,
I am running into a problem which seems to indicate SQL Server 2005 is pretty aggressive with its implicit conversion which makes UNPIVOT apparently unusable for my current task of creating attribute/value pairs of strings for each of the records unpivoted around the primary key.
WITH cte as
(
SELECT 1 as Code, '2' as Status, 'Some Guy' as CreatedBy, Convert(varchar(19), getdate(), 120) as CreatedDate
)
SELECT
[Code]
,[Attribute]
,[Value]
FROM
cte
UNPIVOT([Attribute] FOR [Value] IN ([Status],[CreatedBy],[CreatedDate])) as U;
Msg 8167, Level 16, State 1, Line 1
The type of column "CreatedBy" conflicts with the type of other columns specified in the UNPIVOT list.
The same result shows up if I use an inner SELECT instead of the CTE:
SELECT
[Code]
,[Attribute]
,[Value]
FROM
(
SELECT 1 as Code, '2' as Status, 'Some Guy' as CreatedBy, Convert(varchar(19), getdate(), 120) as CreatedDate
) cte
UNPIVOT([Attribute] FOR [Value] IN ([Status],[CreatedBy],[CreatedDate])) as U;
It seems to me that some arbitrary decision about what column is processed first is made and the process fails as soon as a column is met which is not of the same datatype. I also think it is interesting that the engine will implicitly cast from varchar to DateTime but not the other way around.
Any thoughts on how I can get around this?
Thanks in advance,
Calvin
Does anybody know how could I calculate the new date(adding @c to @bor subtracting @b to @c), having for example a declaration like this:DECLARE @a CHAR(12)DECLARE @b DATETIMEDECLARE @c INTSET @b='3.04.04';SET @c=6and to calculate the number of days between two dates with this kindof declaration(@a-@b or @b - @a):DECLARE @a CHAR(12)DECLARE @b DATETIMEDECLARE @c INTSET @a='12.2.04';SET @b='3.04.04';Thanks in advance.
View 1 Replies View RelatedI have a report that has 3 nested lists. The report looks fine when I view it in the browser but when I print it or export it to another format it appears that keep together is on for each list because some pages are only partially filled. I do not have keep together turned on for any report control, and I don't have page break turned on for anything. This problem results in the report being many more pages than it needs to be. Can anyone help?
View 4 Replies View RelatedHi,
I have noticed that implicit casts are allowed according to the actual data in a column.
Here is an example:
SELECT * FROM MyTable WHERE MyColumn = 3897
MyColumn is defined as nvarchar(15) not null in the database schema.
This query will work only if there are no record in MyTable for which MyColumn has an alphanumerical value. Otherwise it will raise an error:
Serveur : Msg 245, Niveau 16, État 1, Ligne 1
Syntax error converting the nvarchar value 'C061' to a column of data type int.
Of course, the following query is always successful:
SELECT * FROM MyTable WHERE MyColumn = '3897'
Am I correct?
Thanks a lot.
Hello, everyone:
I need total transaction count. @@TRANCOUNT returens the number of explicit transaction. How about implicit transaction? Thanks a lot.
ZYT
performance wise what is the difference between following queries
Select * from A, B Where A.ID = B.ID
Select * from A INNER JOIN B ON A.ID = B.ID
(ID is the primary key)
Hi Everyone-
i have a report that include parameters that the user set and press the button ViewReport for rendering the report
until that everything ok,.. .......but assume that there is an updating occurred on data after the user make the first press on the button ViewReport.
The problem is if the user press the button ViewReport again for the second time without changing the parameter value the report result will be the same even though it is the old data that appear in the 1st press button.
can anyone tell me how to handle this problem to make it refresh when the ViewReport button is pressed
or if there is no solution can anyone provide me with a link that talks about that problem for more details
thanx
Maylo
If I execute multiple SqlCommands in a single .aspx, using a single SqlConnection, are all the commands part of the same transaction?
That is, if I say:
cmd1.CommandText = "UPDATE foo SET myVal = myVal - 1"
cmd2.CommandText = "SELECT myVal FROM foo"
cmd1.Connection = myConn
cmd2.Connection = myConn
myConn.Open()
cmd1.ExecuteNonQuery() ' decrement myVal
intResult = CInt(cmd2.ExecuteScalar()) ' select value of myVal
myConn.Close()
Do the UPDATE and the SELECT happen in the same transaction, or is it possible that someone else would have changed the value of myVal between these two calls?
I am trying to construct a query in Query Analyzer (with SQL Server 2000), but am getting an error regarding "implicit conversion."
Here is the query:
SELECT dbo.AUCTION.EbayNum, dbo.AUCTION.EndDate,
DATENAME([month], dbo.AUCTION.EndDate) + ' ' + DATENAME([year], dbo.AUCTION.EndDate) AS [PmtMonth],
dbo.LOT.Description, dbo.AUCTION.WinBid,
PaidStat = CASE dbo.AUCTION.PaidStatus
WHEN 0 THEN ''
ELSE 'PAID'
END,
PaidAmt = CASE dbo.AUCTION.PaidStatus
WHEN 0 THEN ''
ELSE dbo.AUCTION.WinBid
END
FROM dbo.AUCTION INNER JOIN
dbo.LOT ON dbo.AUCTION.LotNum = dbo.LOT.LotNum
WHERE (LEN(dbo.AUCTION.Winner) > 0)
The error occurs in the PaidAmt CASE statment:
"Implicit conversion from data type varchar to money is not allowed. Use the CONVERT function to run this query."
Why is there an implicit conversion going on? And how can I fix it? :mad:
Dear all,
Hi, I'm using this code to export record from sql to excel and i got this error message "Implicit conversion from data type text to nvarchar is not allowed. use the convert function to run this query"
Excel file is already created columns in the view and excel file are the same and cell format of the excel is converted to text.
--- code used
insert into OPENROWSET('Microsoft.Jet.OLEDB.4.0',
'Excel 8.0;Database=c:filename.xls;',
'SELECT * FROM [filename$]') select * from ViewName
thanks,
Is there any difference between explicit inner join and implicitinner joinExample of an explicit inner join:SELECT *FROM employeeINNER JOIN departmentON employee.DepartmentID = department.DepartmentIDExample of an implicit inner join:SELECT *FROM employee, departmentWHERE employee.DepartmentID = department.DepartmentID
View 11 Replies View Related
I have a sql statement that must run in both sql server and oracle. I can't change the sql statement as it is created as part of a core application from Rational Rose.
Basically the problem is that I have a table with a column defined as a decimal type in sql server (numeric in oracle).
The select statement, however, treats the column as a char. I can reproduce the problem with this simple code:
create table atest2 (a decimal(9,0))
insert into atest2 values (1)
insert into atest2 values (2)
insert into atest2 values (null)
insert into atest2 values (4)
select * from atest2 where a = ' '
This gives the error:
Error converting data type varchar to numeric.
The documents seem to indicate the sql server will implicitly convert decimals to varchar but this doesn't seem to be happening. Is there an environment setting that might control this?
Thanks,
Rut
have a sql statement that must run in both sql server and oracle. I can't change the sql statement as it is created as part of a core application from Rational Rose.
Basically the problem is that I have a table with a column defined as a decimal type in sql server (numeric in oracle).
The select statement, however, treats the column as a char. I can reproduce the problem with this simple code:
create table atest2 (a decimal(9,0))
insert into atest2 values (1)
insert into atest2 values (2)
insert into atest2 values (null)
insert into atest2 values (4)
select * from atest2 where a = ' '
This gives the error:
Error converting data type varchar to numeric.
The documents seem to indicate the sql server will implicitly convert decimals to varchar but this doesn't seem to be happening. Is there an environment setting that might control this?
Thanks,
Rut
Can someone please help me with this? I'm losing all my hair trying to figure it out. I've tried all that I can think of. I am getting the Error converting data type varchar to numeric.
Thanks
Sam "O"
cmdInsert = New SqlCommand( "INSERT INTO tmp_blank (sessionid, ssn,job,sun,mon,tue,wed,thu,fri,sat,totcol)
SELECT '" & Session.SessionId & "', ssn,job,sun,mon,tue,wed,thu,fri,sat,
(cast(sun as numeric(4,2)) + cast(mon as numeric(4,2)) +
cast(tue as numeric(4,2)) + cast(wed as numeric(4,2)) +
cast(thu as numeric(4,2)) + cast(fri as numeric(4,2)) +
cast(sat as numeric(4,2))) as totcol from
" & strTableName, conTimeCard)
intUpdateCount = cmdInsert.ExecuteNonQuery()
Hello,
I'm new to SQL Server and I have to finish a VB.Net program from an employee that has left the company.
I have a table with column 'vanafdatum' witch has datatype char but they stored only dates in this column ( like this: 13/09/2006).
When I try to run the next querie I receive an error message "The conversion of a char data type to a datetime data type resulted in an out of range datetime value".
This is the querie I try to run
SELECT MAX(CAST(vanafdatum AS datetime)) AS vanaf_datum
FROM tarieven
WHERE (vanafdatum <
(SELECT getdate()))
Is there any way I can cast the char datatype to a datetime datatype without getting this error.
I allready tried to change the data type from char to datetime, but doesn't work either.
A possible solution is to erase the column an manually fill in all the fields again in the data type datetime, but that seems a little stupid to do.
So I wonder if there is a solution that can change the data type for all rows in the database without losing any data.
I've got an ftp task that will be downloading a couple of files each night. today they're called
blah20060830blah
the date value in the middle changes each day. I'm trying to adjust this value with an expression. The expression doesn't want to cast my getdate function into a string that this property will accept. I know i'm missing something stupid.
Thank you
Hi,
I would like to know if casting is supported in SQL Server Compact Edition. I get an error when i attempt to cast a datetime or bigint value to nvarchar or ntext. CAST(datetime AS nvarchar(15))
Does anybody knows if its supported or how could i cast values?
Thank you
Hi:
I get this following error when I run try to insert a record from the DetailsView. Please help me out.
---------------------------------------------------------------------------------------------------------------------
Disallowed implicit conversion from data type sql_variant to data type uniqueidentifier, table 'getsetwin.lax21.tblCreateGoal2', column 'ApplicationId'. Use the CONVERT function to run this query.Disallowed implicit conversion from data type sql_variant to data type uniqueidentifier, table 'getsetwin.lax21.tblCreateGoal2', column 'UserId'. Use the CONVERT function to run this query.Operand type clash: sql_variant is incompatible with image
---------------------------------------------------------------------------------------------------------------------
Thank you & Best regards,
Lax
Hi I get the following error:
Implicit conversion of varchar value to varchar cannot be done
because the collation of the value is unresoved due to a collation
conflict
SELECT
Accounts_Users.NameFirst + ' '
+ Accounts_Users.NameLast + ' (' + Accounts_Users.BusinessUnit + ')' AS
NameFull, -- Error here
-- Accounts_Users.NameFirst + ' ' + Accounts_Users.NameLast AS NameFull, -- This line works
Accounts_Users.EmailAddress, Accounts_Users.BusinessUnit
FROM Accounts_Users.Accounts_Users
NameFirst and NameLast are VarChar(30) and BusinessUnit VarChar(50), I
did try converting it to 30 also but still got the same error
The sp works on my dev sql server but not on the live one, I am using Management Console v2 (dev) and 1.2 (live server)
Thanks
Steve
Good Afternoon
Hope that somone can shed some light...
I am using the HitSoftware driver to pass data to an AS400 from a SQL 7 database. Data makes it fine to 2 of the 4 tables but I cannot get the syntax correct to even get out of the S/P edtitor in SQL for the other 2.
I have fields in the SQL S/P defined as VARCHAR. The target fields on the AS400 are ALPHA. So I figured the insert statement to look like:
INSERT INTO CALICOTOTESTAS400.S105Z1NM.ORDTALIB.itmrva0# (TRID30, ITNO30, ITDS30, ITYP30, INVF30, UMST30, ITAC30, UUCA30, EGNO30, RTID30)
VALUES (@v_action, @v_modelNumber, @v_modelDesc, '1', 1, 'EA', @v_acctClass, @v_modelyear, @v_engRevision, @v_spectype)
However, when I try to close the S/P window I get the error:
Error 257: Implicit conversion from data type varchar to binary is not allowed. Use the CONVERT function to run this query.
So, I changed the insert statement to this:
INSERT INTO CALICOTOTESTAS400.S105Z1NM.ORDTALIB.itmrva0# (TRID30, ITNO30, ITDS30, ITYP30, INVF30, UMST30, ITAC30, UUCA30, EGNO30, RTID30)
VALUES (CONVERT(binary, @v_action), CONVERT(binary, @v_modelNumber), CONVERT(binary, @v_modelDesc), CONVERT(binary, '1'), 1, CONVERT(binary, 'EA'), CONVERT(binary, @v_acctClass), CONVERT(binary, @v_modelyear), CONVERT(binary, @v_engRevision), CONVERT(binary,
@v_spectype))
Now the S/P closes without the error. But when I send it to the AS400 I get unrecognizable characters in the fields.
Then I started thinking...I am not trying to do anything with binary fields.
So I am really lost. Please help.
Thanks,
Ed 330-273-7521
If i create a simple table with a foreign key constraint, does itcreate an implicit index on that given ID? I've been told this isdone in some databases, but i need to know for sure if SQL Server doesit. Has anyone heard of this before, on any other databses perhaps?Heres an example of how the foreign key constraint is being added:ALTER TABLE [dbo].[administrators] WITH CHECK ADD CONSTRAINT[FPSLUFSUOXZGAJOJ] FOREIGN KEY([AdministratorRoleID])REFERENCES [dbo].[administratorroles] ([AdministratorRoleID])My initial testing seems to indicate adding an index on the foreignkey column helps, but i need to know for sure. Any insight would begreatly appreciated!Bob
View 6 Replies View RelatedHi all:
I know i can use the sentence SET IMPLICIT_TRANSACTIONS ON in a Stored Procedure to force SQL Server to set the connection into implicit transaction mode.
Have i a sentence or configuration to force all SQL Server connections to implicit transaction mode?
Thanks in advance.
Hi,I've come across a problem that requires i cast a string to a date, had a go but can't get it to work properly.SELECT EventID, EventName, EventShortDesc, EventLink, EventStartDateFROM dbo.tbl_EventWHERE (CAST EventStartDate AS DATE) > GetDate()ORDER BY EventStartDate DESCBasically i only want events which haven't expired (were before the current date) to be returned. EventStartDate is held as an varchar(10) therefore needs to be cast before i can compare. Is this the best way or is there a better one? If it is how do i get it to work?Any help would be great thanks,drazic19
View 2 Replies View RelatedHi All
My brain has truned to mush at the moment.
:(
I want to sort on a char(5) column with data in it that looks like
01/07
05/02
06/01
12/01
07/98
so it comes out in the human date order.
e.g
07/98
06/01
12/01
05/02
01/07
--
David
Hi all,
I'm trying Insert data using INSERT INTO kind of like below
INSERT INTO table1(
col1
col2
col3
col4)
SELECT
col1
col2
col3
col4
FROM
Server.DB.table2
say, col3 from table 1 is numeric (28,8) and col3 from table 2 is float.
how do I cast this so it works??
thank you!
Just a question about multi casting.
If I create a copy of a data set using a multi cast, do operations on one of the output sets effect the other output set?
For example, in one ouput set I'm setting a column to NULL - this is actually updating the other set as well. Is this meant to happen?
Thanks!!
Can anyone see what's wrong with this transformation?
((DT_STR)([IN-DLN]))
I'm trying to cast DLN as a string, but I keep getting a parsing error in the derived column tranformer...
Thanks!
Jim Work
Here is the situation...
I am using SQL Server 2000. I have created a Store Procedure to
insert information, 4 of the fields are date types. I am using
OleDb Data Provider (System.Data.OleDb) namespace.
The dates are filled by a form (web form) on submit event, I created a
class that has functions to create my OleDb Parameters. I add the
parameters to the command and execute it through a SQL Server Stored
Procedure. In the event that I must have coded something wrong, I
tested in the SQL Query Analyzer and the IN parameters for the date I
used the getDate() method. This is where I know it is OleDb and
SQL Server Parameters.
What Converstion Format should I use in the SP for the date?
OleDb.date are doubles from some date in 1979 or something or
another. So I used an OleDbDataType.DBDate. It seems that
when the Stored Procedure uses the IN Parameters dates provided by
OleDbDataType.Date or DBDate, that it doesn't like the int
format. I am guessing that I am not converting the date in the
parameters in the Insert of the Store Procedure... this is basically
what I have...
Function to add parameters and execute SP
private int _startdate = DateTime.Now;
private int _finishdate = DateTime.Now.AddDays(30);
OleDbParameter[] myParams = {
ParamBuilder("@StarDate", OleDbType.DBDate, 8, _startdate),
ParamBuilder("@FinishDate", OleDbType.DBDate, 8, _finishdate)
};
ExecuteNonQuery("myInsert", myParams);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CREATE PROCEDURE myInsert
@StartDate datetime, @FinishDate datetime AS
INSERT INTO myTable (STARTDATE, FINISHDATE)
VALUES (Convert(datetime, @StartDate), Convert(datetime, @FinishDate))
Please keep in mind that I am using System.Data.OleDb
namespace..... please don't tell me to use SQLClient, it seems
since I've been so adaptive of using OleDb, that it sould work just as
well. I am way too far into this to change my Provider to SQL
Client, but I promise myself that the next project (if using SQL
Server, I will be using SQLClient and I will keep using OleDb for
Oracle.) *sigh*
Help!
In a stored procedure, the following code is causing a huge read and CPU load when it really shouldn't. The @IDParameter below is coming in as a parameter to the proc.
Here's the snippet of code where the problem is coming in:
DECLARE @ID INT;
SET @ID = (SELECT ID From OtherTable WHERE FKID = @IDParameter);
SELECT COUNT(*)
FROM LargeTable
WHERE MostlyZeroID = @ID AND MostlyZeroID > 0Most (90+%) of the MostlyZeroID rows are 0 (hence the name) but regardless of distribution this should evaluate with minimal work on SQL Server's part to 0. However, when this was run, it is using a ton of CPU and doing a ton of Reads as it seeks through the entire index. When I look at the execution plan, I see under the seek predicate a Scalar Operator(CONVERT_IMPLICIT(int,[@1],0)) which is what is destroying the performance.
I've confirmed that the MostlyZeroID column in the LargeTable is defined as an INT NOT NULL. I also tested the scenario outside the stored procedure without any variables as the following to make sure it wasn't some kind of strange parameter sniffing scenario:
SELECT COUNT(*)
FROM LargeTable
WHERE MostlyZeroID = 0 AND MostlyZeroID > 0
However, this query also did the implicit conversion. I then tried this out on a temp table populated with a similar number of records (100 million) with a similar distribution and I didn't get the implicit conversion (I got a constant scan as I would've expected) when I did this:
SELECT COUNT(*)
FROM #TestTable
WHERE MostlyZero = 0 AND MostlyZero > 0
I also tried the same on several other tables that are set up similarly (large amount of zeros in an INT column) and I always got a constant scan and didn't do an implicit conversion.
why the query engine is interpreting this 0 as something other than an INT and doing an implicit conversion when getting the count in the scenario above? What can be done to protect against it? In the above scenario, an IF @ID > 0 statement was placed before the code including the count since there was no reason to even run the code if the @ID was equal to zero.
I am facing a problem while using SQL Server with VB application.Implicit conversion from datatype text to nvarchar is not allowed.Use the convert function to run this query.When i see the trace file, i see one stored procedure called but nolines of code get executed, and immediately after that the ROLLBACKTRANSACTION occurs and the applications fails.But to my surprise i am able to do the same thing on a differentmachine using the same application and the same database on the sameserver with the same user id.Can anyone explain the reason of occurance of this problem.I require this very urgently, so i will be oblized if anyone can comeup with a quick response.Kind Regards,Amit Kumar
View 5 Replies View RelatedWhen I run this ...
CREATE ASSEMBLY asmRANDRTCalendaringGateway FROM 'E:sqlRANDRTCalendaringGateway.dll' WITH PERMISSION_SET = UNSAFE
I get this error ...
Msg 10301, Level 16, State 1, Line 1
Assembly 'RANDRTCalendaringGateway' references assembly 'system.web, version=2.0.0.0, culture=neutral, publickeytoken=b03f5f7f11d50a3a.', which is not present in the current database. SQL Server attempted to locate and automatically load the referenced assembly from the same location where referring assembly came from, but that operation has failed (reason: 2(The system cannot find the file specified.)). Please load the referenced assembly into the current database and retry your request.
Even though I do not explicity refer to system.web in the DLL's code ...
using Microsoft.Win32;
using System;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.Configuration;
using System.Text;
using log4net;
using ADODB;
using MAPI;
using CDO;
using System.Runtime.InteropServices;
Is the problem just staring me in the face ?
cheers
Hello,
When I declare a VB variable Dim s as Decimal,
I want to cast d like this : 1452,4141,0045,47756544,04
Only with to digits after the ","
How can I perform this