Q148249: DOC: Help File Example for SELECT SQL UNION Does Not Work

Article: Q148249
Product(s): Microsoft FoxPro
Version(s): WINDOWS:3.0,3.0b
Operating System(s): 
Keyword(s): kbdocfix
Last Modified: 08-FEB-2000

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b 
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SUMMARY
=======

Visual FoxPro's Help information for SELECT - SQL gives an incorrect example of
how to use the UNION clause. It will return the following error if you try to
run it:

  SELECTs are not UNION compatible

This documentation error has been fixed in Visual FoxPro 5.0 for Windows.

MORE INFORMATION
================

The placeholders for orders.order_id and orders.emp_id in the second SELECT are
for the wrong data type. The placeholders are for numeric fields and they should
be for character fields. The example should read as follows:

     SELECT customer.company, orders.order_id, orders.emp_id ;
        FROM customer, orders ;
        WHERE customer.cust_id = orders.cust_id ;
     UNION ;
        SELECT customer.company, '', '' ;
        FROM customer ;
        WHERE customer.cust_id NOT IN ;
        (SELECT orders.cust_id FROM orders)

Additional query words: docerr VFoxWin 5.00

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Keywords          : kbdocfix 
Technology        : kbVFPsearch kbAudDeveloper kbVFP300 kbVFP300b
Version           : WINDOWS:3.0,3.0b

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