16.20 - Example Using FNC_TblFirstParticipant - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL External Routine Programming

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Release Date
April 2020
Content Type
Programming Reference
Publication ID
B035-1147-162K
Language
English (United States)
FNC_Phase    Phase;

if (FNC_GetPhase(&Phase) == TBL_MODE_CONST)
{
   switch(Phase)
   {

      case TBL_PRE_INIT:

         switch (FNC_TblFirstParticipant() ) 
         {
            case 1:   /* participant */
               return;
            case 0:  /* not participant */
               if (FNC_TblOptOut())
                  strcpy(sqlstate, "U0006"); /* an error return */
               return;
            default:  /* -1 or other error */
               strcpy(sqlstate, "U0007");
               return;
         }
      ...
   }
   ...
}