How do I LIMIT the number of rows in a DELETE with DB2?

Question

I want to add a security on a sensitive table when I delete lines with an SQL request on a DB2 table.

I want to mimic the way MySQL allows you to limit the numbers o

Answer 1

DELETE                                      
FROM Bibl/File                             
WHERE RRN(File) =  (                        
                    SELECT min(RRN(File))   
                    FROM Bibl/File         
                    WHERE Fld1 = 'xx'     
                   )   

The RRN function is to AS400/iSeries/PowerSystem alone. In other environments there are other functions for the relative record number.

This makes it possible to erase a record of several identical even without UNIQUE key. It can also be used to update with minor changes.

works like the LIMIT but with DELETE and / or UPDATE.

It only works on SQL DB2 in other settings should be changed by RRN function to return the column number