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https://dev.mysql.com/doc/refman/5.7/en/identifier-case-sensitivity.html
The main disadvantage with this is that when you use SHOW TABLES or SHOW DATABASES, you do not see the names in their original lettercase. In MySQL, databases correspond to directories within the data directory. Each table within a database ...
https://dev.mysql.com/doc/refman/5.7/en/index-condition-pushdown-optimization.html
EXPLAIN output shows Using index condition in the Extra column when Index Condition Pushdown is used. It does not show Using index because that does not apply when full table rows must be read. Index Condition Pushdown (ICP) is an optimization for ...
https://dev.mysql.com/doc/refman/5.7/en/index-hints.html
They also work with multi-table DELETE statements, but not with single-table DELETE, as shown later in this section. These hints are useful if EXPLAIN shows that MySQL is using the wrong index from the list of possible indexes. To see the index ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-column-privileges-table.html
In the output from SHOW FULL COLUMNS, the privileges are all in one column and in lowercase, for example, select,insert,update,references. The COLUMN_PRIVILEGES table has these columns: GRANTEE The name of the account to which the privilege is ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-buffer-page-lru-table.html
Use the INFORMATION_SCHEMA COLUMNS table or the SHOW COLUMNS statement to view additional information about the columns of this table, including data types and default values. The INNODB_BUFFER_PAGE_LRU table provides information about the pages in ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-buffer-pool-stats-table.html
The INNODB_BUFFER_POOL_STATS table provides much of the same buffer pool information provided in SHOW ENGINE INNODB STATUS output. Use the INFORMATION_SCHEMA COLUMNS table or the SHOW COLUMNS statement to view additional information about the ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-cmpmem-table.html
Use the INFORMATION_SCHEMA COLUMNS table or the SHOW COLUMNS statement to view additional information about the columns of this table, including data types and default values. The INNODB_CMPMEM and INNODB_CMPMEM_RESET tables provide status ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-locks-table.html
A value is shown if the LOCK_TYPE is RECORD, otherwise the value is NULL. Primary key values of the locked record are shown for a lock placed on the primary key index. Secondary index values of the locked record are shown for a lock placed on a ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-triggers-table.html
To see information about a table's triggers, you must have the TRIGGER privilege for the table. The TRIGGERS table has these columns: TRIGGER_CATALOG The name of the catalog to which the trigger belongs. TRIGGER_SCHEMA The name of the schema ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-change-buffer.html
To view monitor data, issue the SHOW ENGINE INNODB STATUS statement. The change buffer is a special data structure that caches changes to secondary index pages when those pages are not in the buffer pool. The buffered changes, which may result from ...