What is a ctid?
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Explain multi version concurrency control.
How do you change constraints in postgresql?
Is postgresql better than mongodb?
Is postgres is free?
How to create a postgresql database?
What is composite primary key?
get second maximum date from tables.
Where is postgres configuration file?
How do I connect to postgresql access?
Does PostgrSQL support Column constraints? If so how is it done?
How to display error message in postgresql?
How do you delete a row in a table?