Wednesday, March 5, 2014

Is CREATE INDEX smart-scanable ?

The answer is YES !
Look:



set timing on
CREATE UNIQUE INDEX "DW_STG"."UK#CALLS_00" ON "DW_STG"."CALLS_00" ("CALL_ID")   PCTFREE 0 INITRANS 24 MAXTRANS 255 PARALLEL 64  ;




You can see the column "Cell Offloading" = 95%

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.

Does DEALLOCATE UNUSED or SHRINK SPACE will free space occupied by LOB segment?

Lets check how it works. My env is DB 19.20@Linux-x64 1) I created the table with 4 LOB columns of 4 different LOB types: BASICFILE BLOB, BA...