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https://dev.mysql.com/doc/refman/8.4/en/declare-condition.html
DECLARE condition_name CONDITION FOR condition_value condition_value: { mysql_error_code | SQLSTATE [VALUE] sqlstate_value } The DECLARE ... CONDITION statement declares a named error condition, associating a name with a condition that needs ...
https://dev.mysql.com/doc/refman/8.4/en/document-store-concepts.html
This section explains the concepts introduced as part of using MySQL as a document store. JSON Document Collection CRUD Operations JSON Document A JSON document is a data structure composed of key-value pairs and is the fundamental structure for ...
https://dev.mysql.com/doc/refman/8.4/en/enterprise-encryption-function-reference.html
MySQL Enterprise Encryption functions are provided by the MySQL component_enterprise_encryption component.
https://dev.mysql.com/doc/refman/8.4/en/extended-show.html
Some extensions to SHOW statements accompany the implementation of INFORMATION_SCHEMA: SHOW can be used to get information about the structure of INFORMATION_SCHEMA itself. Several SHOW statements accept a WHERE clause that provides more ...
https://dev.mysql.com/doc/refman/8.4/en/faqs-mysql-cluster.html
In the following section, we answer questions that are frequently asked about MySQL NDB Cluster and the NDB storage engine. Which versions of the MySQL software support NDB Cluster? Do I have to compile from source? A.10.2. What is the difference ...
https://dev.mysql.com/doc/refman/8.4/en/federated-description.html
When you create a table using one of the standard storage engines (such as MyISAM, CSV or InnoDB), the table consists of the table definition and the associated data. When you create a FEDERATED table, the table definition is the same, but the ...
https://dev.mysql.com/doc/refman/8.4/en/fetching-spatial-data.html
Geometry values stored in a table can be fetched in internal format. Fetching spatial data in internal format: Fetching geometry values using internal format can be useful in table-to-table transfers: CREATE TABLE geom2 (g GEOMETRY) SELECT g FROM ...
https://dev.mysql.com/doc/refman/8.4/en/fractional-seconds.html
MySQL has fractional seconds support for TIME, DATETIME, and TIMESTAMP values, with up to microseconds (6 digits) precision: To define a column that includes a fractional seconds part, use the syntax type_name(fsp), where type_name is TIME, ...
https://dev.mysql.com/doc/refman/8.4/en/function-loading.html
Loadable functions, as the name implies, must be loaded into the server before they can be used. MySQL supports automatic function loading during server startup and manual loading thereafter. While a loadable function is loaded, information about ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-changing-group-mode.html
This section explains how to change the mode which a group is running in, either single or multi-primary. The functions used to change a group's mode can be run on any member. Changing to Single-Primary Mode Use the ...