What is difference between primary and secondary key?
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Explain commit, rollback and savepoint.
what is the output of this query selet * from employee where 1=2 ??
what are the advantages of cursors than procedures?
What is sqlcommand?
How is a process of pl/sql compiled?
how to delete an existing column in a table? : Sql dba
What is auto increment feature in sql?
How to take user input in pl sql?
What are the sql aggregate functions?
wirte a query to filter improper date format follwing table? date 20-apr 22-may-2010 26-jun-2010 feb-2009 i want the output date 22-may-2010 26-jun-2010
Give the order of sql select?
What are the differences between implicit and explicit cursors?
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