PDF (US Ltr)
- 43.2Mb
PDF (A4)
- 43.3Mb
Man Pages (TGZ)
- 295.2Kb
Man Pages (Zip)
- 400.4Kb
Info (Gzip)
- 4.3Mb
Info (Zip)
- 4.3Mb
Search Results
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-upgrade-downgrade.html
In many cases, mysqld cannot open tables that were created or modified by a later version of MySQL. In most if not all cases, mysqld cannot read binary log files that were created or modified in a later version of MySQL. A backup created using MySQL ... Versions Supported for Upgrade to NDB 8.0 Reverting an NDB Cluster 8.0 Upgrade Known Issues When Upgrading or Downgrading NDB Cluster This section provides information about NDB Cluster software and compatibility between different NDB Cluster 8.0 releases with regard to performing upgrades and ...
https://dev.mysql.com/doc/refman/8.0/en/partial-revokes.html
Using Partial Revokes Partial Revokes Versus Explicit Schema Grants Disabling Partial Revokes Partial Revokes and Replication Note For brevity, CREATE USER statements shown here do not include passwords. Prior to MySQL 8.0.16, it is not possible to ...
https://dev.mysql.com/doc/refman/8.0/en/sha256-pluggable-authentication.html
As a result, it is possible to create the account and set its password without naming the plugin explicitly: CREATE USER 'sha256user'@'localhost' IDENTIFIED BY 'password'; Another consequence of setting default_authentication_plugin to ...If ...
https://dev.mysql.com/doc/refman/8.0/en/show-events.html
Definer The account of the user who created the event, in 'user_name'@'host_name' format. Execute At For a one-time event, this is the DATETIME value specified in the AT clause of the CREATE EVENT statement used to create the event, or of the last ... SHOW EVENTS [{FROM | IN} schema_name] [LIKE 'pattern' | WHERE expr] This statement displays information about Event Manager events, which are discussed in Section 27.4, “Using the Event ...
https://dev.mysql.com/doc/refman/8.0/en/type-conversion.html
mysql> SELECT 38.8, CAST(38.8 AS CHAR); -> 38.8, '38.8' mysql> SELECT 38.8, CONCAT(38.8); -> 38.8, '38.8' See later in this section for information about the character set of implicit number-to-string conversions, and for modified rules that apply ... When an operator is used with operands of different types, type conversion occurs to make the operands ...
https://dev.mysql.com/doc/refman/8.0/en/backup-policy.html
Full backups are necessary, but it is not always convenient to create them. If you make sure to flush the logs when you make your full backup, the binary log files created afterward contain all the data changes made since the backup. On Monday at 1 ...A full backup (a snapshot of the data at a point in time) can be done in MySQL with several ...
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf16.html
For a supplementary character, utf16 has a special sequence for representing the character using 32 bits. The utf16 character set is the ucs2 character set with an extension that enables encoding of supplementary characters: For a BMP character, ...
https://dev.mysql.com/doc/refman/8.0/en/lock-tables.html
The table can be accessed freely by the session within which it was created, regardless of what other locking may be in effect. The following statements are prohibited while a LOCK TABLES statement is in effect: CREATE TABLE, CREATE TABLE ... LIKE, ... LOCK {TABLE | TABLES} tbl_name [[AS] alias] lock_type [, tbl_name [[AS] alias] lock_type] ...
https://dev.mysql.com/doc/refman/8.0/en/log-file-maintenance.html
As described in Section 7.4, “MySQL Server Logs”, MySQL Server can create several different log files to help you see what activity is taking place. A log-flushing operation has the following effects: If binary logging is enabled, the server ...
https://dev.mysql.com/doc/refman/8.0/en/memory-use.html
For MEMORY tables explicitly created with CREATE TABLE, only the max_heap_table_size system variable determines how large a table can grow, and there is no conversion to on-disk format. When reading rows in an arbitrary sequence (for example, ...