Question

Error on executing user defined function script with delphi query component

Asked by: abunectar

Hi
     iam abu iam using delphi5 with sql server2000.I have written a user defined

CREATE FUNCTION FN_FINDMAX (@PKEY VARCHAR(20))
RETURNS VARCHAR(20)
AS
BEGIN
   DECLARE @INTLENGTH INT
   DECLARE @RETVALUE VARCHAR(20)
   DECLARE @INTCOUNT INT
   SET @INTLENGTH = LEN(@PKEY) + 1
   SET  @INTCOUNT = 1
   SET @RETVALUE = @PKEY
   WHILE (@INTCOUNT <> @INTLENGTH)
   BEGIN
    IF SUBSTRING(@PKEY,@INTCOUNT,1)<>'0' AND
        SUBSTRING(@PKEY,@INTCOUNT,1)<>'1' AND
        SUBSTRING(@PKEY,@INTCOUNT,1)<>'2' AND
        SUBSTRING(@PKEY,@INTCOUNT,1)<>'3' AND
        SUBSTRING(@PKEY,@INTCOUNT,1)<>'4' AND
        SUBSTRING(@PKEY,@INTCOUNT,1)<>'5' AND
        SUBSTRING(@PKEY,@INTCOUNT,1)<>'6' AND
        SUBSTRING(@PKEY,@INTCOUNT,1)<>'7' AND
        SUBSTRING(@PKEY,@INTCOUNT,1)<>'8' AND
        SUBSTRING(@PKEY,@INTCOUNT,1)<>'9'
    BEGIN
        SET @RETVALUE = '0'
        BREAK
    END
    SET @INTCOUNT=@INTCOUNT+1
   END
   RETURN(@RETVALUE)
END

the function working fine in sql server.but when i genrate script for this function and execute in query component it is prompting me incorrect syntax near function.can anyone sujjest me how to execute the script of this function.But other table and view scripts are executing fine,I have only problem when executing user defined function script
 

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Asked On
2005-12-20 at 01:54:52ID21670331
Tags

create

,

function

,

near

Topic

Delphi Programming

Participating Experts
2
Points
100
Comments
7

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Answers

 

by: ziolkoPosted on 2005-12-20 at 05:53:57ID: 15518274

Do You call it that way:
Query.SQL.Add('exec FN_FINDMAX '+QuotedStr(yourparam here)) ?

ziolko.

 

by: pcsentinelPosted on 2005-12-20 at 06:02:59ID: 15518337

Use an ADOCommand control instead

put TADOCommand on Form,
set up connection string

put your code in the TADOCommands CommandText, set the CommandType to cmdText

and run TADOCommand1.Execute


regrds


 

by: pcsentinelPosted on 2005-12-20 at 06:51:05ID: 15518681

One extra thing, Am I right in saying that this function will return 0 for a non numeric input and the input for anumeric input

i.e.
'12345' returns '12345'
'123w5' returns '0'

why not just use isnumeric function as in

SELECT CASE WHEN ISNUMERIC(@PKEY)=1 THEN @PKEY ELSE '0' END

regards

 

by: abunectarPosted on 2005-12-20 at 20:23:06ID: 15524049

Hi
     i found the error.It is due to different collation in sql server.Do any one have idea how to make default collation in sql server through out the database.

 

by: pcsentinelPosted on 2005-12-21 at 01:06:52ID: 15524834

Collation In SQL Server is set at installation, it can be changed

see collations, changing settings in SQL Server Help

aor try using nvarchar instead of varchar in the function

20120131-EE-VQP-002

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