EnterpriseDB PostgreSQL Essentials Certification v13 PostgreSQL-Essentials Exam Questions
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You are connected to a PostgreSQL database. After executing a complex query an error message is displayed. You want to edit and rerun the previously executed query. Which command can be used to edit the query buffer?
Correct Answer: C
You are working as a Postgres DBA. Due to an increase in transactional load on your Postgres
instance, the server is experiencing frequent checkpoints. You have decided to increase the WAL area
size. You have also decided to upgrade your database instance to PostgreSQL 13. While initializing
your database cluster in PostgreSQL 13, you have decided to increase the WAL segment size. Which
of the following options can be used with the initdb command to set a custom WAL segment size?
Correct Answer: B
SERIAL and IDENTITY columns can be used to add an auto-incrementing column in a Postgres table.
Which of these two column types are SQL standard compliant?
Correct Answer: B
You want to list all available databases in your PostgreSQL cluster using psql. Which command should
you use?
Correct Answer: B
Which PostgreSQL backup utility can create backupsin custom compressed format?