How to rename an existing table?
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Explain mutating triggers.
what is the difference between rollback & commit? can a foreign key has null value?
Is it possible to enter only time value into a column of a table in sql?
What do you mean by redo log file mirroring?
What are the different types of databases?
How to assign a table row to a record variable?
Explain how you would restore a database using RMAN to Point in Time?
Please explain oracle data types with examples?
select * from emp what happened internally when we write this query in the sql prompt?
what is integrity constrains?
Explain what are the characteristics of data files?
how to find the n'th highest salary from emp ?