Drop Down MenusCSS Drop Down MenuPure CSS Dropdown Menu

PostgresqlDBA interview questions and answers

Questions :I have three  tables which contains around 20millions of records. I am planning to update these three tables for all records. Could you suggest me best approaches to meet this, please?
Ans:
1.I think disable index before update ? And autovacuum off,arhvive off if possible.
2.Increase the check point time out
Increase shared buffer or wall beffer if archive enable.
3.Check any parallel option is there.

Comments

Popular posts from this blog

amuFormat.sh

aireplay-ng

VMWARE WORKSTATION 3,4,5,6,7,8,9,10,11,12,14,15...etc LICENSE KEYS COLLECTION

Differentiate Statspack & AWR