SQL: Unlocking a file

After executing the following the file is locked.  How do I unlock the 
file, from within the RPG?  Service program.  No suggestions of the 
following please:
- seton LR
- RCLACTGRP
- ENDJOB

     C/EXEC SQL
     C+  Select data into :NameWork from zpal01
     C+    where pkey = 'COMPANY   '
     C/END-EXEC
     C                   If        sqlcod=0
     C                   Return    NameWork
     C                   Else
     C                   Eval      Cmd='SNDPPGMMSG MSGID(CPF9898) '+
     C                                 'MSGDTA(' + apostrophe +
     C                                 'Attempt to access ZPAL01 for ' +
     C                                 'COMPANY record resulted in an ' +
     C                                 'SQL code of ' +
     C                                 %trim(%editc(sqlcod:'Z')) +
     C                                 apostrophe +
     C                                 ') MSGTYPE(*ESCAPE) ' +
     C                                 'MSGF(QCPFMSG)'
     C                   Eval      Status=ExecCmd(Cmd)
     C                   Return    *blanks
     C                   EndIf

Isolation clause?
For read only clause?


Rob Berendt
-- 
"They that can give up essential liberty to obtain a little temporary 
safety deserve neither liberty nor safety." 
Benjamin Franklin