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https://dev.mysql.com/doc/refman/8.4/en/data-dictionary-usage-differences.html
The information_schema_stats_expiry system variable defines the period of time before cached table statistics expire. (To update the cached values at any time for a given table, use ANALYZE TABLE.) If there are no cached statistics or statistics ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-basics.html
There are as many data nodes as there are fragment replicas, times the number of fragments (see Section 25.2.2, “NDB Cluster Nodes, Node Groups, Fragment Replicas, and Partitions”). NDB Cluster logs events by category (startup, shutdown, errors, ... NDBCLUSTER (also known as NDB) is an in-memory storage engine offering high-availability and data-persistence ...
https://dev.mysql.com/doc/extending-mysql/8.4/en/using-own-protocol-trace-plugins.html
Note To use your own protocol trace plugins, you must configure MySQL with the WITH_TEST_TRACE_PLUGIN CMake option disabled because only one protocol trace plugin can be loaded at a time and an error occurs for attempts to load a second one. For ...
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-show-status.html
When no option is used, show status reports runtime information from the mcmd to which the client is connected. --operation option When the --operation option (short form: -o) is used, it causes SHOW STATUS to display the status of the latest ...
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-using-import-cluster-procedure.html
Perform a test run, and then execute the import cluster command. Any cluster processes that are under the control of the system's boot-time process management facility, such as /etc/init.d on Linux systems or the Services Manager on Windows ... The ...
https://dev.mysql.com/doc/relnotes/connector-j/en/news-9-4-0.html
(Bug #38044940) A java.sql.Time instance created from a negative millisecond value, when inserted into a database via using a PreparedStatement, lost its fractional part of the seconds. (Bug #77658, Bug #21946136) Connection.setNetworkTimeout() has ...(Bug #37785888) The method getObject(String , Class<T>) returned a java.lang.AbstractMethodError for a pooled ...
https://dev.mysql.com/doc/internals/en/binlog-event.html
Most of the time you will see RBR and SBR side by side. TABLE_MAP_EVENT DELETE_ROWS_EVENTv0 UPDATE_ROWS_EVENTv0 WRITE_ROWS_EVENTv0 DELETE_ROWS_EVENTv1 UPDATE_ROWS_EVENTv1 WRITE_ROWS_EVENTv1 DELETE_ROWS_EVENTv2 UPDATE_ROWS_EVENTv2 WRITE_ROWS_EVENTv2 ... The events contain the actual data that should be shipped from the master to the ...
https://dev.mysql.com/doc/connectors/en/connector-net-programming-crystal-creating.html
For most purposes, the Standard Report wizard helps with the initial creation of a report. To start the wizard, open Crystal Reports and choose the New > Standard Report option from the File menu. If you use Connector/ODBC as your data source, use ...
https://dev.mysql.com/doc/connectors/en/connector-python-api-mysqlconnection-get-rows.html
Syntax: cnx.get_rows(count=None) This method retrieves all or remaining rows of a query result set, returning a tuple containing the rows as sequences and the EOF packet information. The count argument can be used to obtain a given number of rows.
https://dev.mysql.com/doc/connector-net/en/connector-net-programming-crystal-creating.html
For most purposes, the Standard Report wizard helps with the initial creation of a report. To start the wizard, open Crystal Reports and choose the New > Standard Report option from the File menu. If you use Connector/ODBC as your data source, use ...