Re: Dynamic SQL question

["mlazarus@xxxxxxxx" <mlazarus@xxxxxxxx>]

Phil,

 Here's a snippet of code.  I'm building SQLString dynamically.  I will have 
from 1 to X parameter markers (determined at runtime) on the WHERE clause.

 My question refers more to the Open Using statement.  In this case I have 4 
host variables specified, but since I won't know until runtime how many I need, 
how would you code the Open Using dynamically?  Or is there another approach 
that I can take?  Thanks.

 -mark


C/Exec SQL
C+  Prepare SQLStatement From :SQLString
C/End-Exec

C/Exec SQL
C+  Declare C1 Cursor For
C+             SQLStatement
C/End-Exec

C/Exec Sql
C+     Open C1 Using :S$SESN, :S$RRCD, :PURC, :S$SRS
C/End-Exec

C/Exec Sql
C+     Fetch C1 Into :HostStr
C/End-Exec

 *  DoW Not EOF
C                   DOW       SQLStt <> '02000'

C                   WRITE     FWSCHWKR

C/Exec Sql
C+     Fetch C1 Into :HostStr
C/End-Exec

C                   ENDDO

C/Exec Sql
C+     Close C1
C/End-Exec



----------------
below is a subprocedure which builds a host variable
called SQLStmt (a 1024 varying character field),
prepares the statement using that host variable,
declares the cursor using the prepared statement, then
opens the cursor.  Is this what you're looking for?

Phil

     P SQL_PrpStmt     b
      /FREE
       SQLStmt =
           'select * from prmorg +
           where companyNumber = ' + %editc(cpy:'X') +
           ' order by companyNumber,
organizationName';

      /END-FREE
     C/exec sql
     C+ PREPARE @SELECT FROM :SQLStmt
     C/end-exec
     C
     C/exec sql
     C+ DECLARE @CURSOR DYNAMIC SCROLL CURSOR FOR
@SELECT
     C/end-exec
     C
     C/exec sql
     C+ open @cursor
     C/end-exec
     P SQL_PrpStmt     e
>
> >>> mlazarus@ttec.com 03/18/02 06:21PM >>>
>   I would like to run a dynamic SQL statement with
> an undetermined (at
> compile time) number of placeholder variables.
>
>   Building the PREPARE string w/ the placemarkers is
> not a problem.
> My
> question is how do I specify the "OPEN cursor INTO"
> dynamically?


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