Why union all is faster than union?
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What is temporary stored procedure?
What is wide table?
How can I track the changes or identify the latest insert-update-delete from a table?
I have a table in which phno is one of the columns.i do have some values in tht phno column.i need to update phno column values with 0(zero) as prefix.give me a correct solution plz...
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Explain what are db_options used for?
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