How do you define a foreign key?
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when a procedure /package is getting invalidated?
What is a left join?
When a dml statement is executed, in which cursor attributes, the outcome of the statement is saved?
How do you create an update query?
What is difference between pls_integer and integer?
What is a stored procedure ?
What are the different datatypes available in PL/SQL?
Why join is faster than subquery?
1. what is the exact use of hint in sql. 2. How we can avoid index scan in sql even though index is there in the table.
how to do backup entire database? : Transact sql
What are different types of functions in sql?
How to select random rows from a table?
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