Learn what a SQL union is, how it works, and how you can use it to combine data from different tables or sources. Find examples and best practices for using a SQL union. Agree & Join LinkedIn ...

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 ...

The UNION operator is used to combine the result-set of two or more SELECT statements. Every SELECT statement within UNION must have the same number of columns The columns must also have similar data ...