You can organize and store r-code in an ABL procedure library. The r-code files in a procedure library are known as members. Procedure libraries allow you to manage and execute r-code more efficiently.

OpenEdge provides two types of procedure libraries: standard and memory-mapped. A standard library contains r-code that executes in local memory. A memory-mapped library contains r-code that executes in shared memory. You create procedure libraries by using the PROLIB utility. For information about using the PROLIB utility to create and manage procedure libraries, see ManagingProcedure Libraries.

When loading and executing r-code from operating system files in a directory, OpenEdge must open and close each file individually. When loading and executing r-code from standard or memory-mapped libraries, OpenEdge opens only one file—the library itself—to access all of the members in the library.

When you execute members from either a standard library in local memory or a memory-mapped library in shared memory, you gain the following advantages:

When you execute members from a memory-mapped library in shared memory, you gain the following additional advantages: