Microsoft KB Archive/171272

= FIX: SQL-SELECT into Array Causes Illegal Operation =

Article ID: 171272

Article Last Modified on 8/14/1999

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APPLIES TO


 * Microsoft Visual FoxPro 5.0 Standard Edition

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This article was previously published under Q171272



SYMPTOMS
Using a SQL-SELECT statement to populate an array from a FoxPro 2x table containing deleted records with DELETED set on causes the operating system to close Visual FoxPro 5.0.

When running under Windows 95, the following error appears:

This program has performed an illegal operation and will be shut down.

In Windows NT 4.0, the following error appears:

An application error has occurred and an application error log is being generated.

VFP.exe

Exception: access violation, Address:.

In both cases, the operating system then closes Visual FoxPro.



RESOLUTION
Do not issue a SET DELETED ON command and simply rewrite the SQL-SELECT statement, as in the following example: SELECT * FROM ZTEST INTO ARRAY Zjunk WHERE DELETED=.F. -or- SELECT * FROM ZTEST INTO ARRAY Zjunk WHERE !DELETED Also, the results of the SQL-SELECT statement could be directed to a destination other than to an array.



STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug has been corrected in Visual FoxPro 5.0a and does not occur in Visual FoxPro 3.x.



Steps to Reproduce Behavior
  Run the following code in a program file or line by line from the Visual FoxPro Command window: CLEAR SET SAFETY OFF USE HOME+"samples\data\customer.dbf" EXCLUSIVE COPY TO HOME+"Ztest.dbf" TYPE FOX2X SET SAFETY ON     CLOSE ALL USE HOME+"Ztest.dbf" DELETE ALL FOR RECNO < 10 USE SET DELETED ON     SELECT * FROM HOME+"Ztest" INTO ARRAY Zjunk ? ALEN(zjunk) USE 

Keywords: kberrmsg kbbug kbfix kbvfp500afix KB171272

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