Developer Documentation Library > Data Model > Frequently asked questions > Can you create an empty SPSS Statistics .sav file from an .mdd file?
 
Can you create an empty SPSS Statistics .sav file from an .mdd file?
I want to create an SPSS .sav file without any case data based on a questionnaire definition (.mdd) file. Is this possible and if so, how do I do it?
You can do this by connecting to the Data Model using SPSS Statistics SAV DSC and the .mdd file and then running the xp_syncdb extended stored procedure. For example, you could do this in DM Query as follows:
1 In Windows Explorer, go to the folder in which the Visual Basic .NET version of DM Query is installed. By default, this is:
[INSTALL_FOLDER]\IBM\SPSS\DataCollection\7\DDL\Code\Tools\VB.NET\DM Query
2 Double-click the DM Query.exe file.
This opens the DM Query window and the Connection tab in the Data Link Properties dialog.
3 Select Intelligence Metadata Document from the Metadata Type list, and then enter the name and location of the .mdd file in the Metadata Location box.
4 Select Open metadata Read/Write.
5 Select IBM SPSS Statistics File (SAV) (read-write) from the Case Data Type list, and then enter the name and location of the new .sav file in the Case Data Location box.
6 Click OK.
7 Type EXEC xp_syncdb in the SQL box, and press Enter.
8 Close DM Query.
See also
SPSS Statistics SAV DSC
DM Query
Adding extended stored procedures
EXECUTE: execute stored procedures
Frequently asked questions