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https://dev.mysql.com/doc/refman/8.0/en/create-temporary-table.html
You can use the TEMPORARY keyword when creating a table. When innodb_strict_mode is enabled (the default), CREATE TEMPORARY TABLE returns an error if ROW_FORMAT=COMPRESSED or KEY_BLOCK_SIZE is specified. If innodb_strict_mode is disabled, warnings ...A TEMPORARY table is visible only within the current session, and is dropped automatically when the session is ...
https://dev.mysql.com/doc/refman/8.0/en/create-tablespace.html
Considerations for InnoDB Considerations for NDB Cluster Options Notes InnoDB Examples NDB Example Considerations for InnoDB CREATE TABLESPACE syntax is used to create general tablespaces or undo tablespaces. The UNDO keyword, introduced in MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html
The following table shows some authentication_policy values and the policy that each establishes for creating or altering accounts. Table 7.4 Example authentication_policy Values authentication_policy Value Effective Policy '*' Permit only creating ...For a system variable summary table, see Section 7.1.5, “Server System Variable ...
https://dev.mysql.com/doc/refman/8.0/en/create-table-generated-columns.html
If expression evaluation causes truncation or provides incorrect input to a function, the CREATE TABLE statement terminates with an error and the DDL operation is rejected. It is permitted to mix VIRTUAL and STORED columns within a table. A function ...Values of a generated column are computed from an expression included in the column ...
https://dev.mysql.com/doc/refman/8.0/en/creating-tables.html
Use a CREATE TABLE statement to specify the layout of your table: mysql> CREATE TABLE pet (name VARCHAR(20), owner VARCHAR(20), species VARCHAR(20), sex CHAR(1), birth DATE, death DATE); VARCHAR is a good choice for the name, owner, and species ...
https://dev.mysql.com/doc/refman/8.0/en/alter-table.html
For example, you can add or delete columns, create or destroy indexes, change the type of existing columns, or rename columns or the table itself. To use ALTER TABLE, you need ALTER, CREATE, and INSERT privileges for the table. Renaming a table ...| ...
https://dev.mysql.com/doc/refman/8.0/en/creating-many-tables.html
If you have many MyISAM tables in the same database directory, open, close, and create operations are slow. If you execute SELECT statements on many different tables, there is a little overhead when the table cache is full, because for every table ...
https://dev.mysql.com/doc/refman/8.0/en/federated-create.html
To create a FEDERATED table you should follow these steps: Create the table on the remote server. Alternatively, make a note of the table definition of an existing table, perhaps using the SHOW CREATE TABLE statement. Create the table on the local ...Note You can improve the performance of a FEDERATED table by adding indexes to the table on the ...The optimization occurs because the query sent to the remote server ...
https://dev.mysql.com/doc/refman/8.0/en/create-user.html
The latter corresponds to the type of value displayed by SHOW CREATE USER for password hashes containing unprintable characters when the print_identified_with_as_hex system variable is enabled. CREATE USER permits these auth_option syntaxes: ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-create-select.html
ROW format: The statement is logged as a CREATE TABLE statement followed by a series of insert-row events. SELECT statement to make any changes in tables other than the table that is created by the statement. If the destination table does not exist, ...SELECT always performs an implicit commit (Section 15.3.3, “Statements That Cause an Implicit ...