Increase performance by caching small lookup tables.
Use a persistent lookup cache for static lookup tables.
If the lookup table does not change between sessions, configure the Lookup transformation to use a persistent lookup cache. the Integration Service saves and reuses cache files, eliminating the time required to read the lookup table.
If the lookup table does not change between mapping runs, configure the Lookup transformation to use a persistent lookup cache. The Integration Service saves and reuses cache files, eliminating the time required to read the lookup table.