Oracle SQL Hints - Performance tuning
D2000 DBManager - performance tuning
Oracle SQL Hints
Oracle SQL Hints are used to pass instructions, or hints, to the performance optimizer of SQL statement.
Syntax:
SELECT /*+ <orahint> */ ...
UPDATE /*+ <orahint> */ ...
DELETE /*+ <orahint> */ ...
INSERT /*+ <orahint> */ ...
In ESL script actions, the value is used without the opening and terminating characters /*+, */.
Example of use:
;with APPEND the rows are written directly to the datafiles and are not logged
DBS_INSERT DB.AR_USER_PRAVO_TEMP, _Temp, _retCode ORAHINT "append"
IF _retCode # _ERR_NO_ERROR THEN
CALL [E.AR] LogError((%GetLastExtErrorCode())) ASYNC ON AR.EVH
ENDIFYou can find more information in Oracle documentation.