| |
SQL: Union and Union All |
| |
|
| Created On: |
Friday September 25, 2009 |
| Description: |
UNION is used to combine the result from multiple SELECT statements into a single result set. By default, when it is applied to more than one queries, returns unique result sets only. UNION ALL on the other hand returns all rows in the result set. |
| Discussion Type: |
Discussion on Tutorial |
| Number of Topics: |
0 |
| |
|
|
|