September 2014
Intermediate to advanced
384 pages
9h 28m
English
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The information_schema database
The
information_schema database (often called I_S for brevity) is a virtual database that contains informative tables. These tables can be divided into several groups:
- Metadata tables: Tables such as
SCHEMATA,TABLES, andCOLUMNScontain information about the structure of databases, tables, columns, and so on. - Status and variables tables: The
GLOBAL_VARIABLESandSESSION_VARIABLEStables list the values of the server's system variables. TheGLOBAL_STATUSandSESSION_STATUStables provide information about the operations performed by the server. - Privilege tables: The tables whose names end with
_PRIVILEGESindicate users that have various permissions on objects. - The PROFILING table: This table can be used to monitor ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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