Microsoft KB Archive/172923

= FIX: Copy To ... Type SDF Causes Error Message in Visual FoxPro =

Article ID: 172923

Article Last Modified on 3/24/2000

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APPLIES TO


 * Microsoft Visual FoxPro 5.0 Standard Edition
 * Microsoft Visual FoxPro 5.0a

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This article was previously published under Q172923



SYMPTOMS
Issuing two consecutive COPY TO TYPE SDF commands causes Visual FoxPro 5.0x to return the following error message on the second command:

File .txt already exist as part of a database.

This error does not occur in Visual FoxPro 3.0b.



RESOLUTION
Check for the existence of the first SDF file and if it exists delete it. In the code example in the MORE INFORMATION section below, the following code accomplishes this task. Place the code between the two COPY TO commands: IF FILE("test1.txt")=.t.     DELETE FILE test1.txt ENDIF



STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This has been corrected in Visual FoxPro 6.0.



MORE INFORMATION
The error message occurs only when zero (0) is the first character in the SDF file. However, if the resulting SDF file is smaller than 8000 bytes, the error does not occur even if the zero character is in the SDF file. Finally, choosing any other file format or placing any other character in the SDF file prevents the error.

Steps to Reproduce Behavior
Create a program that contains the following code and execute it: CLEAR CREATE TABLE test1.dbf FREE (f C(100)) FOR i = 1 TO 80 INSERT INTO test1 VALUES ("0") NEXT COPY TO test1.txt TYPE SDF COPY TO test1.txt TYPE SDFF The error appears on the second COPY TO command.

Additional query words: sdf

Keywords: kbbug kbfix kbvfp600fix kbprb KB172923

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