Special SQL Specific Queries
While you are in the Design view window of a query, you can click Query and then choose SQL Specific. You will notice three options: union, pass-through, and data definition.
These queries cannot be created in the QBE design window; neither can they be upsized. The pass-through query runs on a server, anyway. You can create these queries directly by choosing Create Query in Design view and then clicking Close when the Show Table dialog box appears. Next, click Query and SQL Specific from the menu. Then choose the query type of your choice to create the query.
Union Queries
UNION is not a SQL statement or clause, but an operator to combine two or more tables or queries using two or more SELECT statements. This type ...
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