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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/json-attribute-functions.html
The functions in this section return attributes of JSON values. An error occurs if the argument is not a valid JSON document. An empty array, empty object, or scalar value has depth 1. A nonempty array containing only elements of depth 1 or ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-columns-list.html
This is a variant of LIST partitioning that enables the use of multiple columns as partition keys, and for columns of data types other than integer types to be used as partitioning columns; you can use string types, DATE, and DATETIME columns. In ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-pruning.html
The optimization known as partition pruning is based on a relatively simple concept which can be described as “Do not scan partitions where there can be no matching values”. By limiting the search, it is possible to expend much less time and ...
https://dev.mysql.com/doc/refman/8.4/en/prepare.html
PREPARE stmt_name FROM preparable_stmt The PREPARE statement prepares a SQL statement and assigns it a name, stmt_name, by which to refer to the statement later. The prepared statement is executed with EXECUTE and released with DEALLOCATE PREPARE.
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/advanced.point.html
You can restore your database server to its state at an arbitrary time using the binary log files included in the backups. The process assumes that following conditions are met: The backed-up MySQL Server has had its binary logging enabled (which ...
https://dev.mysql.com/doc/c-api/8.4/en/c-api-prepared-statement-date-handling.html
The binary (prepared statement) protocol enables you to send and receive date and time values (DATE, TIME, DATETIME, and TIMESTAMP), using the MYSQL_TIME structure. The members of this structure are described in Section 6.2, “C API Prepared ...
https://dev.mysql.com/doc/c-api/8.4/en/c-api-prepared-statement-type-codes.html
The buffer_type member of MYSQL_BIND structures indicates the data type of the C language variable bound to a statement parameter or result set column. For input, buffer_type indicates the type of the variable containing the value to be sent to the ...
https://dev.mysql.com/doc/mysql-ai/9.4/en/mys-ai-aml-prepare-data-split.html
You can automatically create training and testing datasets with the TRAIN_TEST_SPLIT routine. Overview The TRAIN_TEST_SPLIT routine takes your datasets and prepares new tables for training and testing machine learning models. Two new tables in the ...
https://dev.mysql.com/doc/mysql-ai/9.4/en/mys-mysqlai-train-test-split.html
The TRAIN_TEST_SPLIT routine automatically splits your data into training and testing datasets. Two new tables in the same database are created with the following names: [original_table_name]_train [original_table_name]_test The split of the data ...