Specification of transform groups

Many transform groups can be defined for a given structured type, so you must specify which group of transforms to use for that type in a program or specific SQL statement.

There are three circumstances in which you must specify transform groups:

When an external function or method is defined, you must specify the group that decomposes and constructs a referenced object.
When precompiling or binding static SQL, you must specify the group of transforms that perform client bind in and bind out for a referenced type.
When executing dynamic SQL, or when using the Command Line Processor, you must specify the group of transforms that perform client bind in and bind out for a referenced type.