Sams Teach Yourself SQL in 24 Hours, Third Edition By Ronald R. Plew, Ryan K. Stephens
Table of Contents
Part VII. Summarized Data Structures
Hour 21. Working with the System Catalog
During this hour, you learn about the system catalog, commonly referred to as the data dictionary in some relational database implementations . By the end of this hour, you will understand the purpose and contents of the system catalog and will be able to query it to find information about the database based on commands that you have learned in previous hours. Each major implementation has some form of a system catalog that stores information about the database itself. This hour shows examples of the elements contained in a few different system catalogs.
