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https://dev.mysql.com/doc/refman/5.7/en/security-guidelines.html
When running MySQL, follow these guidelines: Do not ever give anyone (except MySQL root accounts) access to the user table in the mysql system database! This is critical. A passphrase containing multiple words is easy to create, remember, and ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-temporary-tablespace.html
Non-compressed, user-created temporary tables and on-disk internal temporary tables are created in a shared temporary tablespace. Issue a query similar to this one to view temporary tablespace metadata: mysql> SELECT * FROM INFORMATION_SCHEMA.FILES ...If no value is specified for innodb_temp_data_file_path, the default behavior is to create an auto-extending data file named ibtmp1 in the innodb_data_home_dir directory that is slightly larger than ...
https://dev.mysql.com/doc/refman/5.7/en/built-in-function-reference.html
The following table lists each built-in (native) function and operator and provides a short description of each one. For a table listing functions that are loadable at runtime, see Section 12.2, “Loadable Function Reference”. ->> Return value ...
https://dev.mysql.com/doc/refman/5.7/en/general-thread-states.html
After create This occurs when the thread creates a table (including internal temporary tables), at the end of the function that creates the table. This state is used even if the table could not be created due to some error. This state occurs after ... The following list describes thread State values that are associated with general query processing and not more specialized activities such as ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-limitations-transactions.html
When a user-created NDB table is accessed using a unique index, the hidden index table is first read to find the primary key that is then used to read the user-created table. When a row referenced by a unique index in the user-created NDB table is ...Because the MySQL server creates a shadowing ordered index for every unique index created in NDB, this lets the ordered index be read instead, and avoids unique index access ...
https://dev.mysql.com/doc/refman/5.7/en/x-plugin-encrypted-connections.html
Encryption per connection is optional, but a specific user can be required to use encryption for X Protocol and MySQL Protocol connections by including an appropriate REQUIRE clause in the CREATE USER statement that creates the user. Alternatively, ... This section explains how to configure X Plugin to use encrypted ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-install-example-data.html
If no primary key is defined by the user when a table is created, the NDBCLUSTER storage engine automatically generates a hidden one. Setting or changing MySQL user accounts (including the root account) effects only applications that access the SQL ...To specify this, use the ENGINE=NDBCLUSTER or ENGINE=NDB option when creating the table: CREATE TABLE tbl_name (col_name column_definitions) ENGINE=NDBCLUSTER; Alternatively, for an existing table that uses a different storage engine, use ALTER TABLE to change the table to use NDBCLUSTER: ALTER TABLE tbl_name ENGINE=NDBCLUSTER; Every NDBCLUSTER table has a primary ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-compression-syntax-warnings.html
SQL Compression Syntax Warnings and Errors for File-Per-Table Tablespaces When innodb_strict_mode is enabled (the default), specifying ROW_FORMAT=COMPRESSED or KEY_BLOCK_SIZE in CREATE TABLE or ALTER TABLE statements produces the following error if ... This section describes syntax warnings and errors that you may encounter when using the table compression feature with file-per-table tablespaces and general ...
https://dev.mysql.com/doc/refman/5.7/en/show-engine.html
Name Prior to MySQL 5.7.8, the Name field reports the source file where the mutex is implemented, and the line number in the file where the mutex is created. The remaining rows from the output of SHOW ENGINE NDB STATUS which are most likely to prove ... SHOW ENGINE engine_name {STATUS | MUTEX} SHOW ENGINE displays operational information about a storage ...
https://dev.mysql.com/doc/refman/5.7/en/change-master-to.html
(Bug #11758581, Bug #50801) MASTER_USER and MASTER_PASSWORD are the user name and password of the account to use for connecting to the source. The password used for a replication user account in a CHANGE MASTER TO statement is limited to 32 ...(Bug ...] CHANGE MASTER TO changes the parameters that the replica uses for connecting to the replication source server, for reading the source's binary log, and reading the replica's relay ...