Can we use rowid as primary key?
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What are types of exception?
What are the subsets of sql?
What is a database trigger ? Name some usages of database trigger ?
How can I get the number of records affected by a stored procedure?
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 is the usage of NVL?
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How do you break a loop in pl sql?
What is loop in pl sql?
What are packages in pl sql and also explain its advantages?
What is snowflake sql?
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What is procedure function?
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