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https://dev.mysql.com/doc/refman/5.7/en/create-view.html
(Selecting from the view selects, in effect, using the SELECT statement.) The select_statement can select from base tables or from other views. The view definition is “frozen” at creation time and is not affected by subsequent changes to the ...
https://dev.mysql.com/doc/refman/5.7/en/optimizing-innodb-bulk-data-loading.html
COMMIT; The mysqldump option --opt creates dump files that are fast to import into an InnoDB table, even without wrapping them with the SET autocommit and COMMIT statements. If you have UNIQUE constraints on secondary keys, you can speed up table ...
https://dev.mysql.com/doc/refman/5.7/en/se-csv-repair.html
The CSV storage engine supports the CHECK TABLE and REPAIR TABLE statements to verify and, if possible, repair a damaged CSV table. When running the CHECK TABLE statement, the CSV file is checked for validity by looking for the correct field ...
https://dev.mysql.com/doc/refman/5.7/en/replace.html
When modifying an existing table that is not partitioned to accommodate partitioning, or, when modifying the partitioning of an already partitioned table, you may consider altering the table's primary key (see Section 22.6.1, “Partitioning Keys, ...REPLACE works exactly like INSERT, except that if an old row in the table has the same value as a new row for a PRIMARY KEY or a UNIQUE index, the old row is deleted before the new row is ...
https://dev.mysql.com/doc/refman/5.7/en/cannot-find-table.html
Even for file systems that are not case-sensitive, such as on Windows, all references to a given table within a query must use the same lettercase. You can check which tables are in the default database with SHOW TABLES.
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-ft-default-stopword-table.html
The INNODB_FT_DEFAULT_STOPWORD table holds a list of stopwords that are used by default when creating a FULLTEXT index on InnoDB tables. For related usage information and examples, see Section 14.16.4, “InnoDB INFORMATION_SCHEMA FULLTEXT Index ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-metrics-table.html
The INNODB_METRICS table provides a wide variety of InnoDB performance information, complementing the specific focus areas of the Performance Schema tables for InnoDB. The INNODB_METRICS table has these columns: NAME A unique name for the counter.
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-fields-table.html
The INNODB_SYS_FIELDS table provides metadata about the key columns (fields) of InnoDB indexes, equivalent to the information from the SYS_FIELDS table in the InnoDB data dictionary. For related usage information and examples, see Section 14.16.3, ...POS The ordinal position of the key field within the index, starting from 0 and incrementing ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-processlist-table.html
For a comparison of this table with other sources, see Sources of Process Information. This is the same value displayed in the Id column of the SHOW PROCESSLIST statement, displayed in the PROCESSLIST_ID column of the Performance Schema threads ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-tp-thread-state-table.html
The TP_THREAD_STATE table has one row per thread created by the thread pool to handle connections. The TP_THREAD_STATE table has these columns: TP_GROUP_ID The thread group ID. TP_GROUP_ID and TP_THREAD_NUMBER together provide a unique key within ...PROCESS_COUNT The 10ms interval in which the statement that uses this thread is currently ...