What does subquery mean in sql?
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Explain the advantages and disadvantages of stored procedure?
how to retrieve last tree records from table? select *from emp where rownum > (select count(*)-3 from emp); i am using this query to get last three records from table but its not giving any output, so please tell me what is the error in this query.
How to Declare Fixed Length String Value In PL SQL
What is a trigger in sql?
What is trigger and stored procedure in sql?
What are basic techniques of indexing?
How delete a row in sql?
How do we use distinct statement? What is its use?
which types of join is used in sql widely? : Sql dba
What is an inconsistent dependency?
Differentiate between %type and %rowtype attribute in Oracle PL/AQL programming ?
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