Back from an extended vacation and I find myself in the middle of a project needing to export data from a DB2 database. Fortunately I have decent knowledge of SQL and the basic syntax matches up but then I found myself wanting to limit the results returned. Now in T-SQL and MySQL I often would use the, LIMIT, TOP or SET ROWCOUNT commands but they aren’t available in DB2. Instead you use the FETCH FIRST command.
To put things simply to limit the number of rows returned the command is:
FETCH FIRST 10 ROWS ONLY
What this means is that your basic SELECT statement would be entered as:
SELECT * FROM mySchema.myTable WHERE TRAN_TS >= '05/01/2010' FETCH FIRST 10 ROWS ONLY