On 12 June 2013 16:50, e-mail mgbg25171 <mgbg25...@blueyonder.co.uk> wrote: > Tbank you in anticipation for any forthcoming advice > I include my program below in Powerbasic (not disimilar to C) > and wonder what I need to do in order to "wrap" > multiple statements (which use prepare,step & finalise) as transactions? > . . . . > > FUNCTION exec_sql( _ > hDB AS DWORD, _ > hD AS DWORD, _ > BYVAL pzSql AS ASCIZ PTR, _ > BYVAL pzErr_msg AS ASCIZ PTR _ > ) AS LONG > > LOCAL lresult AS LONG > LOCAL pzTail AS ASCIZ PTR > LOCAL pzPrepared AS ASCIZ PTR > LOCAL pzStmt AS ASCIZ PTR > LOCAL azcols() AS ASCIZ PTR ' array of dword pointers to > column name strings > LOCAL azvals() AS ASCIZ PTR ' array of dword pointers to > column values > LOCAL ncols AS LONG ' the column count > LOCAL nErmsg AS LONG > LOCAL szErmsg AS ASCIZ * 512 > LOCAL nRetry AS LONG > LOCAL s AS STRING > LOCAL i, l AS LONG > > lresult = %SQLITE_OK > > IF @pzSql = "" THEN > FUNCTION = %SQLITE_OK > EXIT FUNCTION ' called with null SQL statement > END IF > > lresult = sqlite3_prepare( hDB, @pzSql, -1, pzPrepared, pzTail )
Your exec_sql function is passed multiple sql statements in a single string, but you are only ever preparing the first statement. Reread http://www.sqlite.org/c3ref/prepare.html with particular focus on pzTail . . . Regards, Simon _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
