Customize Database Operations

Create and alter functions, function strings, and function-string classes to allow replication definitions to work with database servers other than Adaptive Server.

• Functions, Function Strings, and Function-string Classes
  Replication Server translates commands from the primary database into Replication Server functions that represent data server operations such as insert, delete, select, begin transaction, and so on. It distributes these functions to remote Replication Servers in the system, where they execute those operations in remote databases.
• Work with Functions, Function Strings, and Classes
  There are several ways you can work with functions and function strings to customize database operations.
• Function-String Classes
  Each function string belongs to a function-string class, which groups function strings intended to be used with databases of a similar type or with similar requirements.
• Manage Function-String Classes
  Managing function-string classes includes creating, assigning, and dropping function-string classes.
• Manage Function Strings
  Each destination Replication Server uses function strings to convert the functions to commands that are appropriate for the destination data server (such as Adaptive Server) before it submits these commands.
• Display Function-Related Information
  Use the Replication Server admin command or Adaptive Server stored procedures to obtain information about existing function strings and classes in your replication system.
• Default System Variable
  Use the default system variable, rs_default_fs, to extend and customize function strings.
• Use Function Strings with text, unitext, image, and rawobject Datatypes
  In an environment that supports text, unitext, image, and rawobject datatypes, you can customize function strings for the rs_writetext function using the output template formats writetext or none.