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DB2_LOAD_COPY_NO_OVERRIDE and controlling non-recoverable load operations

2022-08-30 22:31:11  阅读:187  来源: 互联网


DB2_LOAD_COPY_NO_OVERRIDE and controlling non-recoverable load operations


Question & Answer


This document addresses the question of whether there is a way to restrict users from using NONRECOVERABLE loads. It also describes the usage of the DB2_LOAD_COPY_NO_OVERRIDE registry variable.


Is there a way to restrict users from using NONRECOVERABLE loads?

No. The DB2_LOAD_COPY_NO_OVERRIDE registry can be set on the server to automatically convert:

  • COPY NO Loads to NONRECOVERABLE loads, or
  • COPY NO Loads to COPY YES loads.
There is no way to convert NONRECOVERABLE loads to any other type of load operation.

How to use DB2_LOAD_COPY_NO_OVERRIDE registry variable

The DB2_LOAD_COPY_NO_OVERRIDE can be set on the server as follows:
db2set DB2_LOAD_COPY_NO_OVERRIDE="COPY YES to <path name>"
... where <path name> is a path that the instance owner has permission on.

Here is an example of how the registry variable can be used:
  1. Create a directory named /TMP/myinstance that the instance owner has write access to.
  2. Run the following commands:
    db2 update db cfg for sample using LOGRETAIN ON
    db2 terminate
    db2 backup db sample
    db2set DB2_LOAD_COPY_NO_OVERRIDE="COPY YES to /TMP/myinstance"
    db2 connect to sample
    db2 "export to employee.del of del select * from employee"
    db2 "load from employee.del of del modified by coldel, replace into employee COPY NO"

You will note that the COPY NO load above gets converted to a COPY YES and the COPY YES load would be placed on /TMP/myinstance.

Note: The registry variable can be set to any valid COPY YES syntax. Refer to the LOAD command for an example of the COPY YES syntax.  

Related Information

Miscellaneous variables

LOAD command

来源: https://www.cnblogs.com/z-cm/p/16641120.html

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