The column storage engine is more suitable for OLAP big data statistical analysis scenarios.

Answer(s): A

Which of the TOAST data storage strategies allow compression?

Answer(s): B,D

The following table table operation constraints, the wrong one is

When deleting a table space, it is not protected by transactions. If the table space is deleted, the table space has been destroyed and cannot be used.
Only system administrators can create table spaces
The system administrator has the permission to execute the DROP TABLESPACE command by default
Allow create and delete table space operations within a transaction block

Answer(s): D