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https://dev.mysql.com/doc/refman/8.0/en/json-modification-functions.html
The functions in this section modify JSON values and return the result. JSON_ARRAY_APPEND(json_doc, path, val[, path, val] ...) Appends values to the end of the indicated arrays within a JSON document and returns the result. An error occurs if the ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-encrypted-file-component.html
Note component_keyring_encrypted_file is an extension included in MySQL Enterprise Edition, a commercial product. The component_keyring_encrypted_file keyring component stores keyring data in an encrypted, password-protected file local to the ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-file-component.html
The component_keyring_file keyring component stores keyring data in a file local to the server host. Warning For encryption key management, the component_keyring_file and component_keyring_encrypted_file components are not intended as a regulatory ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-options.html
MySQL supports the following keyring-related command-line options: --keyring-migration-destination=plugin Command-Line Format --keyring-migration-destination=plugin_name Type String The destination keyring plugin for key migration. The option value ...
https://dev.mysql.com/doc/refman/8.0/en/keywords.html
Certain keywords, such as SELECT, DELETE, or BIGINT, are reserved and require special treatment for use as identifiers such as table and column names. This may also be true for the names of built-in functions. Some keywords which are otherwise ...
https://dev.mysql.com/doc/refman/8.0/en/logical-operators.html
Table 14.5 Logical Operators Name Description AND, && Logical AND NOT, ! Negates value OR, || Logical OR XOR Logical XOR In SQL, all logical operators evaluate to TRUE, FALSE, or NULL (UNKNOWN). In MySQL, these are implemented as 1 (TRUE), 0 ...
https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html
ABS(X) Returns the absolute value of X, or NULL if X is NULL. An implication of this is that ABS(-9223372036854775808) produces an error because the result cannot be stored in a signed BIGINT value. mysql> SELECT ABS(2); -> 2 mysql> SELECT ABS(-32); ...
https://dev.mysql.com/doc/refman/8.0/en/metadata-locking.html
MySQL uses metadata locking to manage concurrent access to database objects and to ensure data consistency. Metadata locking applies not just to tables, but also to schemas, stored programs (procedures, functions, triggers, scheduled events), ...
https://dev.mysql.com/doc/refman/8.0/en/myisamchk-general-options.html
The options described in this section can be used for any type of table maintenance operation performed by myisamchk. The sections following this one describe options that pertain only to specific operations, such as table checking or repairing.
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-backup-configuration.html
Five configuration parameters are essential for backup: BackupDataBufferSize The amount of memory used to buffer data before it is written to disk. BackupLogBufferSize The amount of memory used to buffer log records before these are written to disk. BackupMemory The total memory allocated in a data node for ...