Comparing data structures


The Compare component requires two inputs: the primary set of input (also called Compare1) and the secondary set of input (also called Compare2). The CDL that Compare generates shows the changes for the objects in the primary input that are required to create data structures like those that are defined in the secondary input. In other words, the primary input is the environment to which the resulting CDL will be applied. The secondary input is the environment that contains the objects that already have the structure definitions that you want.

The input structures for a comparison can be contained in the Db2 catalog, a baseline, a migrate-type worklist, or a DDL file. In addition, Compare can generate CDL from change requests stored in an alter-type work ID.

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