Q95294: Creating Modifiable Cursor in FoxPro with SQL SELECT

Article: Q95294
Product(s): Microsoft FoxPro
Version(s): 2.00 2.50 2.50a | 2.50 2.50a 3.0
Operating System(s): 
Keyword(s): 
Last Modified: 12-AUG-1999

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b, 5.0, 5.0a, 6.0 
- Microsoft FoxPro for MS-DOS, versions 2.0, 2.5, 2.5a 
- Microsoft FoxPro for Windows, versions 2.5, 2.5a 
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Issuing a SQL SELECT command with the INTO CURSOR clause creates a
read-only cursor. To create a modifiable cursor, use one of the
following workarounds:

- Use the SQL SELECT command with the INTO TABLE or INTO DBF clause. This
  command creates a new permanent database that can be deleted when it is no
  longer needed.

- Use the following code (which uses the FoxPro 2.x CUSTOMER table):

        USE c:\foxpro2\tutorial\customer.dbf
          * USE the database that is being queried.
        =AFIELDS(struct_arr)
          * The array struct_arr contains the database structure.
        CREATE CURSOR temp FROM ARRAY struct_arr
          * temp has the structure of CUSTOMER.DBF.
        SELECT * FROM customer INTO ARRAY data_arr
          * data_arr contains the result of the query.
        SELECT temp
        APPEND FROM ARRAY data_arr
          * temp now contains the result of the query
          * and is not read-only.

  NOTE: This example works only if the SQL SELECT command is from a single
  database and all fields are being selected. If this is not the case, you can
  modify struct_arr to reflect the structure of the fields being selected, or
  use the CREATE CURSOR command to create a temporary table with the
  appropriate structure.


REFERENCES
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"Commands & Functions," version 2.0, pages C3-701 to C3-705

Additional query words: VFoxWin FoxDos FoxWin 2.x kbvfp300 kbvfp300b kbvfp500 kbvfp500a kbvfp600

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Keywords          :  
Technology        : kbVFPsearch kbAudDeveloper kbFoxproSearch kbZNotKeyword3 kbFoxPro200DOS kbFoxPro250DOS kbFoxPro250aDOS kbFoxPro250 kbFoxPro250a kbVFP300 kbVFP300b kbVFP500 kbVFP600 kbVFP500a
Version           : 2.00 2.50 2.50a | 2.50 2.50a 3.0

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