Help in Call Stack Entires.

Hi,
   
   
  I have a RPGLE pogram named XRPG which gets executed as a job. At some point, 
this CLP calls another CLP program XCL127. In this program, Execute command is 
used to run a SQL query. Now the call stack read as below:
   
        XRPG124      PRODLIB1   10800                            008E       000 
       QCMDEXC      QSYS                                        0129       000 
       XCL127      PRODLIB2   128                              0051       000 
       QCATRS       QSYS                                        01EE       000 
       EXECHKR      SEQUEL                                      0005       000 
     < SQLSERVERV   SEQUEL                                                 000 
         Procedure: _QRNP_PEP_SQLSERVERV                                       
     < vationInit   QSYS       0000001534                                  000 
         Procedure: Q LE leActivationInit                                      
     < InitRouter   QSYS       0000001567                                  000 
         Procedure: Q LE leActivationInitRouter                                
     < initlocale   QSYS       0000000004                                  000 
         Procedure: _C_PSX_initlocale                                          
     < _setlocale   QSYS       0000001114                                  000 
         Procedure: _C_PSX_setlocale                                           
     < lex__FiPCc   QSYS       0000001169                                  000 
..continues..
   
  I want someone to help me in explaining how and why this call happens. 
Especially I want to know when/why leactivationinit gets called. Can anyone 
please explain this?.
   
  Thanks
  Avis
   
   

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