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https://dev.mysql.com/doc/refman/5.7/en/fulltext-stopwords.html
The following example demonstrates creating and configuring a new global stopword table for InnoDB. The stopword list is loaded and searched for full-text queries using the server character set and collation (the values of the character_set_server ...
https://dev.mysql.com/doc/refman/5.7/en/stored-objects.html
Stored objects include these object types: Stored procedure: An object created with CREATE PROCEDURE and invoked using the CALL statement. Stored function: An object created with CREATE FUNCTION and used much like a built-in function. Trigger: An ...
https://dev.mysql.com/doc/refman/5.7/en/backup-and-recovery.html
It is important to back up your databases so that you can recover your data and be up and running again in case problems occur, such as system crashes, hardware failures, or users deleting data by mistake. A group of MySQL servers can be configured ...Backups are also essential as a safeguard before upgrading a MySQL installation, and they can be used to transfer a MySQL installation to another system or to set up replica ...
https://dev.mysql.com/doc/refman/5.7/en/events-syntax.html
MySQL provides several SQL statements for working with scheduled events: New events are defined using the CREATE EVENT statement. An event can be dropped by any user having the EVENT privilege for the database on which the event is defined. The ...
https://dev.mysql.com/doc/refman/5.7/en/explain-output.html
If so, create an appropriate index and check the query with EXPLAIN again. Plan isn't ready yet (JSON property: none) This value occurs with EXPLAIN FOR CONNECTION when the optimizer has not finished creating the execution plan for the statement ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-tables-table.html
Names of databases and user tables are in the same case as they were originally defined, possibly influenced by the lower_case_table_names setting. The number reported includes three hidden columns that are created by InnoDB (DB_ROW_ID, DB_TRX_ID, ... The INNODB_SYS_TABLES table provides metadata about InnoDB tables, equivalent to the information from the SYS_TABLES table in the InnoDB data ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-analyze-table-complexity.html
To set the number of pages sampled for an individual table, use the STATS_SAMPLE_PAGES option with CREATE TABLE or ALTER TABLE. For the nonunique indexes, the primary key columns (a,b) are counted in addition to the user defined columns. ANALYZE ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-locks-set.html
If you have no indexes suitable for your statement and MySQL must scan the entire table to process the statement, every row of the table becomes locked, which in turn blocks all inserts by other users to the table. It is important to create good ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-transaction-isolation-levels.html
A user can change the isolation level for a single session or for all subsequent connections with the SET TRANSACTION statement. This is because a non-locking SELECT statement presents the state of the database from a read-view which consists of ...
https://dev.mysql.com/doc/refman/5.7/en/json-utility-functions.html
In the case where it is string, the function returns the amount of storage space in the JSON binary representation that is created by parsing the string as JSON and converting it to binary. This section documents utility functions that act on JSON ...