What is plpgsql language?
How to check if a column is nullable before setting to nullable?
What is pl sql architecture?
How many sql are there?
Explain what is an index?
Which normal form is best?
Can we rollback after truncate?
How many types of keys are there in sql?
What can you do with pl sql?
What is difference between function and trigger?
what is the difference between char_length and length? : Sql dba
What is the use of <> sql?
Explain isolation levels. : Transact sql