Which are the most commonly used sql joins?
What is a unique key and primary key and foreign key?
What is difference between nchar and nvarchar?
Difference between inline query and stored procedure?
What's the procedure?
Why is a trigger used?
Show the two pl/sql cursor exceptions.
what is data manipulation language? : Sql dba
What is substitution variable in pl sql?
which operator is used in query for pattern matching? : Sql dba
How to trace the errors in pl/sql block code?
How do you determine the current isolation level? : Transact sql
Is sql the best database?
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