Create Function Strings

Use the create function string command to add a function string to a function-string class or for a target database.

Enter function-string commands at the primary site of the function string. For function strings with:

Replication-definition scope – the primary site is the Replication Server where the replication definition was created.
Class scope – the primary site is the Replication Server that is the primary site for the class. The primary site for a derived class is the same as for its parent class, unless the parent class is one of the system-provided classes.
Target-scope function string – the primary site is the Replication Server that controls the target database, which is either the standy or replicate database. You create the target-scope function string against the standby or replicate database, and the target-scope function string is not associated with any function string classes.

If you are using a derived function-string class whose parent class is not provided by the system, you may choose to customize function strings in the parent class rather than in the derived class that is actually assigned to a particular database connection. Doing so would make the customized function strings available for any additional derived classes of that parent class.

Comparison of Target-Scope and Replication Definition-Scope Function Strings
There are several differences between target-scope and replication definition-scope function strings.
Guidelines for Creating Function Strings
There are several guidelines for creating function strings.

Parent topic: Manage Function Strings

Related concepts

Primary Site for a Function-String Class