What is pl sql record in oracle?
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What is difference between inner join and self join?
What is the difference between count 1 and count (*) in a sql query?
What is an escape character in sql?
What are two virtual tables available during database trigger execution ?
What does plv msg allows you to do?
Store procedure will return a value?
one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So my requirement is i want output like SAL --- 1000 2000 3000 it mean i want to delete duplicate rows only how should u write query?
what are date and time data types in mysql? : Sql dba
Explain what is a field in a database and record in a database?
What is difference between joins and union?
What is a database trigger?
When is the update_statistics command used?
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