SELECT INTO

From SQL PL Guide for DB2

The SELECT INTO statement can be used instead of the SET command if you want to put the output of a query into a variable. You can set one or multiple variables with this statement.

Be sure that the statement returns just one row, otherwise you may will get an runtime error.

Example:

 create procedure myproc1 (out v_tabschema varchar(100), out v_tabname varchar(100))
 begin

    select tabschema,tabname into v_tabschema, v_tabname
      from syscat.tables
      order by create_time desc
      fetch first 1 rows only;
 
 end!

A similar behaviour is by using the VALUES statement:

 create procedure myproc (out v_timestamp timestamp)
 begin
   values current timestamp into v_timestamp;
 end!

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Link to the DB2 Information Center: DB2 9 DB2 9.5