Speed up imports in BTEQ or SQL Assistant - response (11) by gopinadhs

Hi Dnoeth,
Can i use PACK command for BTEQ DML activities to avoid slow running lookups. I know PACK is same as Serialize , since it is grouping of all same row hash in to a same amp.
--So, can i use PACK command in BTEQ DML activity ?.
--How to use PACK in bteq, and please check the correct syntex of using PACK statement in BTEQ ?.
--How many sessions can i use with PACK in this scenario ?.
----
.set sessions 5;
.PACK 250;
.LOGON xxxxxx/xxxxxxx,xxxxxx;
BT;
Del from db.test_tbal;
Update  (complex join);
Insert stage._hist
select * from stage.source files;
ET;
.LOGOFF;
.Quit;