33. Lookup Tables
- Lookup Tables in Cluster Environment
- Internal Lookup Tables
- External (Shared) Lookup Tables
- Types of Lookup Tables
Lookup tables are data structures that allow fast access to data stored using a known key or SQL query. This way you can reduce the need to browse a database or data files.
Remember that you should not use lookup tables in the
All data records stored in any lookup table are kept in files, in databases or cached in memory.
Lookup tables can be internal or external (shared).