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https://dev.mysql.com/doc/refman/8.0/en/alter-table-examples.html
row *************************** Table: t1 Create Table: CREATE TABLE `t2` ( `c1` int(11) DEFAULT NULL ) /*!50100 TABLESPACE ts_1 STORAGE DISK */ ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci 1 row in set (0.01 sec) To change ...For NDB tables, it is also possible to change the storage type used for a table or ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-and-mysql-replication.html
This is true whether you are using statement-based or row-based replication. It is possible to use replication in a way where the storage engine on the replica is not the same as the storage engine on the source. For example, you can replicate ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-info.html
From MySQL 8.0.16, when insertions, deletions, or updates are made to partitioned tables, the binary log records information about the partition and (if any) the subpartition in which the row event took place. A new row event is created for a ...
https://dev.mysql.com/doc/refman/8.0/en/ansi-diff-foreign-keys.html
For example, if you define a RESTRICT type constraint, and there is a child row with several parent rows, InnoDB does not permit the deletion of any of the parent rows. In an SQL statement that inserts, deletes, or updates many rows, foreign key ...
https://dev.mysql.com/doc/refman/8.0/en/engine-condition-pushdown-optimization.html
This reduces the number of rows which must be handled by the SQL node during join processing. In this case, each row retrieved from the scan-filtered table is matched against every row in the buffer. This means that there is no single specific row ... This optimization improves the efficiency of direct comparisons between a nonindexed column and a ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-triggers.html
Does MySQL have statement-level or row-level triggers? All triggers are FOR EACH ROW; that is, the trigger is activated for each row that is inserted, updated, or deleted. To affect trigger order, specify a clause after FOR EACH ROW that indicates ...Where can I find the documentation for MySQL 8.0 triggers? ...
https://dev.mysql.com/doc/refman/8.0/en/function-optimization.html
If a function is tagged nondeterministic, a reference to it in a WHERE clause is evaluated for every row (when selecting from one table) or combination of rows (when selecting from a multiple-table join). The second query contains an expression that ...A function is nondeterministic if, given fixed values for its arguments, it can return different results for different ...
https://dev.mysql.com/doc/refman/8.0/en/insert-select.html
| TABLE table_name | VALUES row_constructor_list } [ON DUPLICATE KEY UPDATE assignment_list] value: {expr | DEFAULT} value_list: value [, value] ... row_constructor_list: ROW(value_list)[, ROW(value_list)][, ...] assignment: col_name = value | ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-error-summary-tables.html
row *************************** ERROR_NUMBER: 1064 ERROR_NAME: ER_PARSE_ERROR SQL_STATE: 42000 SUM_ERROR_RAISED: 1 SUM_ERROR_HANDLED: 0 FIRST_SEEN: 2016-06-28 07:34:02 LAST_SEEN: 2016-06-28 07:34:02 *************************** 2. row ... The ...
https://dev.mysql.com/doc/refman/8.0/en/precision-math-examples.html
This section provides some examples that show precision math query results in MySQL. These examples demonstrate the principles described in Section 14.24.3, “Expression Handling”, and Section 14.24.4, “Rounding Behavior”. Consider the ...