What is intersect?
What types of commands can be executed in sql*plus?
Does sql full backup truncate logs?
What is lexical units in pl sql?
How will you distinguish a global variable with a local variable in pl/sql?
What is the main difference between a UNION statement and a UNION ALL statement? 1. A UNION statement eliminates duplicate rows; a UNION ALL statement includes duplicate rows. 2. A UNION statement can be used to combine any number of queries; a UNION ALL statement can be used to combine a maximum of two queries. 3. A UNION statement can only combine queries that have parallel fields in the SELECT list; a UNION ALL statement can combine queries with differing SELECT list structures. 4. A UNION statement cannot be used with aggregate functions; a UNION ALL statement can be used with aggregate functions. 5. There is no difference between the two statements; they are interchangeable.
how to get a list of all tables in a database? : Sql dba
How do you create a db file?
What are the dml statements?
Why is the cursor important?
how to run 'mysql' commands from a batch file? : Sql dba
Why do we need view in sql?
How many times can we commit in a loop?
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