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https://dev.mysql.com/doc/refman/8.0/en/numeric-type-attributes.html
MySQL supports an extension for optionally specifying the display width of integer data types in parentheses following the base keyword for the type. For example, INT(4) specifies an INT with a display width of four digits. This optional display ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-error-summary-tables.html
The Performance Schema maintains summary tables for aggregating statistical information about server errors (and warnings). For a list of server errors, see Server Error Message Reference. Collection of error information is controlled by the error ...
https://dev.mysql.com/doc/refman/8.0/en/spatial-convenience-functions.html
The functions in this section provide convenience operations on geometry values. Unless otherwise specified, functions in this section handle their geometry arguments as follows: If any argument is NULL, the return value is NULL. If any geometry ...
https://dev.mysql.com/doc/refman/8.0/en/spatial-relation-functions-object-shapes.html
The OpenGIS specification defines the following functions to test the relationship between two geometry values g1 and g2, using precise object shapes. The return values 1 and 0 indicate true and false, respectively, except that distance functions ...
https://dev.mysql.com/doc/refman/8.0/en/x-plugin-options-system-variables.html
To control activation of X Plugin, use this option: --mysqlx[=value] Command-Line Format --mysqlx[=value] Type Enumeration Default Value ON Valid Values ONOFFFORCEFORCE_PLUS_PERMANENT This option controls how the server loads X Plugin at startup.
https://dev.mysql.com/doc/refman/8.0/en/all-subqueries.html
The expression is TRUE if table t2 contains (-5,0,+5) because 10 is greater than all three values in t2. The expression is FALSE if table t2 contains (12,6,NULL,-100) because there is a single value 12 in table t2 that is greater than 10. The ...
https://dev.mysql.com/doc/refman/8.0/en/creating-spatial-indexes.html
For InnoDB and MyISAM tables, MySQL can create spatial indexes using syntax similar to that for creating regular indexes, but using the SPATIAL keyword. For storage engines that support nonspatial indexing of spatial columns, the engine creates a ...
https://dev.mysql.com/doc/refman/8.0/en/gis-linestring-property-functions.html
You can extract particular points of a LineString, count the number of points that it contains, or obtain its length. Unless otherwise specified, functions in this section handle their geometry arguments as follows: If any argument is NULL or any ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-enterprise-backup.html
MySQL Enterprise Backup is a commercially-licensed backup utility for MySQL Server, available with MySQL Enterprise Edition. This section explains how to back up and subsequently restore a Group Replication member using MySQL Enterprise Backup. The ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-columns-table.html
For related usage information and examples, see Section 17.15.3, “InnoDB INFORMATION_SCHEMA Schema Object Tables”. The INNODB_COLUMNS table has these columns: TABLE_ID An identifier representing the table associated with the column; the same ...