Search Results
https://dev.mysql.com/doc/refman/8.4/en/selecting-all.html
Fix only the erroneous record with an UPDATE statement: mysql> UPDATE pet SET birth = '1989-08-31' WHERE name = 'Bowser'; The UPDATE changes only the record in question and does not require you to reload the table. If a table contains invisible ...
https://dev.mysql.com/doc/refman/8.4/en/show-engines.html
row *************************** Engine: MEMORY Support: YES Comment: Hash based, stored in memory, useful for temporary tables Transactions: NO XA: NO Savepoints: NO *************************** 2. row *************************** Engine: MRG_MYISAM ... SHOW [STORAGE] ENGINES SHOW ENGINES displays status information about the server's storage ...
https://dev.mysql.com/doc/refman/8.4/en/stop-replica.html
When the source is using the row-based binary logging format, you should execute STOP REPLICA or STOP REPLICA SQL_THREAD on the replica prior to shutting down the replica server if you are replicating any tables that use a nontransactional storage ...] thread_type: IO_THREAD | SQL_THREAD channel_option: FOR CHANNEL channel Stops the replication ...
https://dev.mysql.com/doc/refman/8.4/en/string-literals.html
MySQL recognizes the escape sequences shown in Table 11.1, “Special Character Escape Sequences”. For the escape sequences that represent each of these characters, see Table 11.1, “Special Character Escape Sequences”. A string is a sequence ...
https://dev.mysql.com/doc/refman/8.4/en/symbolic-links.html
You can move databases or tables from the database directory to other locations and replace them with symbolic links to the new locations. You might want to do this, for example, to move a database to a file system with more free space or increase ...The recommended way to do this is to symlink entire database directories to a different ...
https://dev.mysql.com/doc/refman/8.4/en/sys-processlist.html
They provide more complete information than the SHOW PROCESSLIST statement and the INFORMATION_SCHEMA PROCESSLIST table, and are also nonblocking. For additional information, see the description of the Performance Schema threads table at Section ...
https://dev.mysql.com/doc/refman/8.4/en/testing-server.html
For more information about mysql, mysqladmin, and mysqlshow, see Section 6.5.1, “mysql — The MySQL Command-Line Client”, Section 6.5.2, “mysqladmin — A MySQL Server Administration Program”, and Section 6.5.6, “mysqlshow — Display ...
https://dev.mysql.com/doc/refman/8.4/en/timestamp-lookups.html
In the preceding discussion, the data set stored in tstable happens to consist of distinct UTC values. If the index is not UNIQUE, it is possible for the table (and the index) to store multiple instances of a given UTC value. Temporal values are ...
https://dev.mysql.com/doc/refman/8.4/en/using-mysqldump.html
This output consists of CREATE statements to create dumped objects (databases, tables, stored routines, and so forth), and INSERT statements to load data into tables. With --tab, mysqldump produces two output files for each dumped table. The server ... Tip Consider using the MySQL Shell dump utilities, which provide parallel dumping with multiple threads, file compression, and progress information display, as well as cloud features such as Oracle Cloud Infrastructure Object Storage streaming, and MySQL HeatWave compatibility checks and ...
https://dev.mysql.com/doc/refman/8.4/en/xa-restrictions.html
The implementation of internal XA requires that a storage engine support two-phase commit at the table handler level, and currently this is true only for InnoDB. This means that the same XA transaction can appear in the events_transactions_current ... XA transaction support is limited to the InnoDB storage ...