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https://dev.mysql.com/doc/refman/8.4/en/column-indexes.html
The most common type of index involves a single column, storing copies of the values from that column in a data structure, allowing fast lookups for the rows with the corresponding column values. The B-tree data structure lets the index quickly ...
https://dev.mysql.com/doc/refman/8.4/en/create-index.html
CREATE [UNIQUE | FULLTEXT | SPATIAL] INDEX index_name [index_type] ON tbl_name (key_part,...) [index_option] [algorithm_option | lock_option] ... This guideline is especially important for InnoDB tables, where the primary key determines the ...
https://dev.mysql.com/doc/refman/8.4/en/data-type-defaults.html
Data type specifications can have explicit or implicit default values. A DEFAULT value clause in a data type specification explicitly indicates a default value for a column. Examples: CREATE TABLE t1 ( i INT DEFAULT -1, c VARCHAR(10) DEFAULT '', ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-preparation.html
Preparing the NDB Cluster for replication consists of the following steps: Check all MySQL servers for version compatibility (see Section 25.7.2, “General Requirements for NDB Cluster Replication”). To provide replication backup capability, you ...
https://dev.mysql.com/doc/refman/8.4/en/replication-features-differing-tables.html
Source and target tables for replication do not have to be identical. A table on the source can have more or fewer columns than the replica's copy of the table. In addition, corresponding table columns on the source and the replica can use ...
https://dev.mysql.com/doc/refman/8.4/en/silent-column-changes.html
In some cases, MySQL silently changes column specifications from those given in a CREATE TABLE or ALTER TABLE statement. These might be changes to a data type, to attributes associated with a data type, or to an index specification. All changes are ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-fetch-field.html
MYSQL_FIELD * mysql_fetch_field(MYSQL_RES *result) Description Returns the definition of one column of a result set as a MYSQL_FIELD structure. Call this function repeatedly to retrieve information about all columns in the result set. For ...
https://dev.mysql.com/doc/connectors/en/connector-python-asyncio.html
Installing Connector/Python also installs the mysql.connector.aio package that integrates asyncio with the connector to allow integrating asynchronous MySQL interactions with an application. Functions included in the asyncio API must be used to ...
https://dev.mysql.com/doc/connector-python/en/connector-python-asyncio.html
Installing Connector/Python also installs the mysql.connector.aio package that integrates asyncio with the connector to allow integrating asynchronous MySQL interactions with an application. Functions included in the asyncio API must be used to ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-install-example-data.html
Note The information in this section applies to NDB Cluster running on both Unix and Windows platforms. Working with database tables and data in NDB Cluster is not much different from doing so in standard MySQL. There are two key points to keep in ...