Difference between revisions of "SETRESULTSET()"

Revision as of 11:11, 11 December 2012

Purpose

Function to mark an SQL cursor as a resultset

Syntax

SETRESULTSET(<expN>|<expC>)

See Also

CLEARRESULTSET(), GETRESULTSET(), SQL SELECT

Description

The SETRESULTSET() function marks an SQL cursor as a resultset. Any previous SQL cursor marker is cleared. The workarea number or alias name of the cursor should be specified in <expN> or <expC> respectively. The SETRESULTSET() function is particularly used in returning a resultset from a stored procedure in SQL client/server applications.

The GETRESULTSET() function can be used to return the workarea number of an SQL cursor marked as a resultset by SETRESULTSET(). The resultset marker can be cleared from an SQL cursor using the CLEARRESULTSET() function.

Example

function GetExampleCursor
  lparameters lcAccountNo
  select * from example where account_no = lcAccountNo into cursor curExample
return setresultset("curExample")
 
open database southwind
GetExampleCursor("00050")
select * from curexample
? "Cleared resultset marker in work area #" + ltrim(str(clearresultset()))
? iif(getresultset() > 0,"Resultset available in work area #" + ltrim(str(getresultset())),;
       "No resultsets available")
?
close databases

Products

Lianja, Lianja Server