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https://dev.mysql.com/doc/refman/5.7/en/ldml-collation-example.html
The collation is designed for a scenario involving a Web application for which users post their names and phone numbers. You can check the variable value as follows, although the path name might be different on your system: mysql> SHOW VARIABLES ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-mysqld.html
row *************************** Id: 1 User: system user Host: db: Command: Daemon Time: 1 State: Waiting for event from ndbcluster Info: NULL Important To participate in an NDB Cluster, the mysqld process must be started with both the options ...To ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-what-is-new-7-5.html
The create_old_temporals system variable was deprecated in NDB Cluster 7.4, and has now been removed. This setting can be controlled for individual tables by means of a PARTITION_BALANCE option (renamed from FRAGMENT_COUNT_TYPE in NDB 7.5.4) ...
https://dev.mysql.com/doc/refman/5.7/en/replication-sbr-rbr.html
For most users, the mixed replication format should provide the best combination of data integrity and performance. SELECT, a CREATE statement is generated from the table definition and replicated using statement-based format, while the row ...If, ...
https://dev.mysql.com/doc/refman/5.7/en/sys-processlist.html
tmp_tables The number of internal in-memory temporary tables created by the current statement. tmp_disk_tables The number of internal on-disk temporary tables created by the current statement. The MySQL process list indicates the operations ...
https://dev.mysql.com/doc/refman/5.7/en/thread-commands.html
A thread can have any of the following Command values: Binlog Dump This is a thread on a replication source for sending binary log contents to a replica. Daemon This thread is internal to the server, not a thread that services a client connection.
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-status-variables.html
Performance Schema status variables have the following meanings: Performance_schema_accounts_lost The number of times a row could not be added to the accounts table because it was full. Performance_schema_users_lost The number of times a row could ...Performance_schema_digest_lost The number of digest instances that could not be instrumented in the events_statements_summary_by_digest ...
https://dev.mysql.com/doc/refman/5.7/en/bug-reports.html
To discuss problems with other users, you can use the MySQL Community Slack. If a database table is related to the problem, include the output from the SHOW CREATE TABLE db_name.tbl_name statement in the bug report. The information helps us create a ... Before posting a bug report about a problem, please try to verify that it is a bug and that it has not been reported already: Start by searching the MySQL online manual at ...
https://dev.mysql.com/doc/refman/5.7/en/copying-databases.html
In cases where you need to transfer databases between different architectures, you can use mysqldump to create a file containing SQL statements. You might have to run commands as the MySQL root user on the new machine until you have the mysql ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-status-monitoring.html
Performance_schema_xxx_instances_lost indicates how many instances of object type xxx could not be created. If the server cannot create a given instrumented mutex instance, it increments Performance_schema_mutex_instances_lost. INSTALL PLUGIN ...