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Learn how to use the UNION operator in SQL, a set operation that combines the rows from two or more queries into one result set. Discover the benefits, limitations, and examples of using it.
I need to form the equivalent of a Union Join in Oracle 8i, even though a Union Join doesn't appear to be supported in 8i. I might be able to manipulate a Full Outer Join to get the results I need ...
We created two new tables departments and employees for the demonstration using Sample-tables.sql script. The SQL script is underfollowed. -- Create DEPARTMENTS table CREATE TABLE DEPARTMENTS ( ...
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