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Implementing Siebel eBusiness Applications on DB2 UDB for OS/390 and z/OS > Customizing a Development Environment >

Creating Custom Extensions to the Siebel Schema

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There are several different scenarios for Siebel schema extensions:

Creating a small extension column, so the table fits into its existing table space
Creating a large extension column, so the table has to be redefined to a larger page size and therefore a larger table space
Creating an extension table

Creating a small extension column works as on other platforms and is documented in Siebel Tools Reference.

Creating a large extension column or an extension table requires the specification of a 16-KB or 32-KB table space:

If developing on DB2 UDB for Windows or UNIX, you must enter a 16-KB or
32-KB table space in the Apply Schema screen. (See Step 4.)
If developing on DB2 UDB for OS/390 and z/OS, your DBA must edit the storage control file to specify in which database and table spaces the new extension column or table should reside.

For information on estimating storage needs, see Preparing for Implementation on the DB2 Host.

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