Syntax - Advanced SQL Engine - Teradata Database

SQL External Routine Programming

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
17.00
Published
June 2020
Language
English (United States)
Last Update
2021-01-24
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B035-1147
lifecycle
previous
Product Category
Teradata Vantage™
FNC_QB_Pair_t *
FNC_GetQueryBandPairs ( void            *QBandBuf,
                        FNC_QBSearch_et  SearchType,
                        int             *NumPairs )
void *QBandBuf
a pointer to a buffer containing the query band, where the query band can be:
  • Returned by FNC_GetQueryBand
  • Retrieved from the DBC.DBQLogTbl.QueryBand column
  • Specified by the caller
FNC_QBSearch_et SearchType
whether FNC_GetQueryBandPairs searches for name-value pairs in the transaction, session, and/or profile query band.
FNC_QBSearch_et is defined in sqltypes_td.h and includes the following values:
  • QB_FIRST specifies to return the first unique name-value pair for each name found in the transaction, session, and profile query bands. If the transaction, session, and profile query bands contain the same name, FNC_GetQueryBandPairs returns the first name-value pair found in the query band in the following order:
    • Transaction query band
    • Session query band
    • Profile query band
  • QB_TXN specifies to return name-value pairs in the transaction query band.
  • QB_SESSION specifies to return name-value pairs in the session query band.
  • QB_PROFILE specifies to return name-value pairs in the profile query band.
int *NumPairs
the number of name-value pairs that FNC_GetQueryBandPairs returns.