HOWTO: Use CompareMemo and Update Memo Fields

• Microsoft Visual FoxPro for Windows, versions 5.0, 6.0

SUMMARY

CompareMemo is a new property added to the CursorSetProp command in Visual FoxPro 5.0. CursorSetProp specifies property settings for a Visual FoxPro table or cursor. The new CompareMemo property determines how conflicts are detected. There have not been any other changes from Visual FoxPro 3.0 in the manner in which memo fields are updated.

MORE INFORMATION

The new CompareMemo property determines how conflicts are detected during an update. With CompareMemo set to .T. (the default), memo fields are included in the WHERE clause for updates (the conflict detection behavior is the same as in Visual FoxPro 3.0). When CompareMemo is set to .F., memo fields are not included in the WHERE clause for updates and, therefore, are not checked for conflict even though the WhereType is DB_KEYANDUPDATABLE or DB_KEYANDMODIFIED.

Additionally, General fields are not included in the WHERE clause under any circumstance in Visual FoxPro 5.0 because many servers do not support comparison of long type columns. Conflict detection on fields of all other types remains the same as in Visual FoxPro 3.0.

Additional query words:

Keywords : kbDatabase kbVFp500 kbVFp600 KbDBFDBC
Version : WINDOWS:5.0,6.0
Platform : WINDOWS
Issue type : kbhowto