What is database migration?
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What is the difference between nvl function, ifnull function, and isnull function?
I need to write a simple query,which one is better select statement or stored procedure?and why?
What is a heap in sql?
What is the difference between numeric and autonumber?
i have table T!. A B C D NULL 1 2 3 4 NULL 5 6 7 8 NULL 9 10 11 12 NULL. I WANT COUNT OF NULL VALUES IN TABLE. WRITE A QUERY.
What are the advantages and disadvantages, compared to the standard SQL and SQL*plus ?
What are the blocks in stored procedure?
Can a foreign key have a different name?
What is the maximum number of columns in sql table?
How we can update the view?
What is procedure and function?
how to retrive only second row from table?
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