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https://dev.mysql.com/doc/refman/8.4/en/subquery-materialization.html
The optimizer uses materialization to enable more efficient subquery processing. Materialization speeds up query execution by generating a subquery result as a temporary table, normally in memory. The first time MySQL needs the subquery result, it ...
https://dev.mysql.com/doc/refman/8.4/en/telemetry-metrics-meter-metrics.html
The following server metrics are registered by default: mysql.stats Metrics mysql.stats.com Metrics mysql.stats.connection Metrics mysql.perf_schema Metrics mysql.stats.handler Metrics mysql.stats.myisam Metrics mysql.stats.ssl Metrics mysql.inno ...
https://dev.mysql.com/doc/refman/8.4/en/trigger-syntax.html
To create a trigger or drop a trigger, use the CREATE TRIGGER or DROP TRIGGER statement, described in Section 15.1.22, “CREATE TRIGGER Statement”, and Section 15.1.34, “DROP TRIGGER Statement”. Here is a simple example that associates a ...
https://dev.mysql.com/doc/refman/8.4/en/user-variables.html
You can store a value in a user-defined variable in one statement and refer to it later in another statement. This enables you to pass values from one statement to another. User variables are written as @var_name, where the variable name var_name ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-stmt-next-result.html
int mysql_stmt_next_result(MYSQL_STMT *mysql) Description This function is used when you use prepared CALL statements to execute stored procedures, which can return multiple result sets. Use a loop that calls mysql_stmt_next_result() to determine ...
https://dev.mysql.com/doc/mysql-ai/9.5/en/mys-mysqlai-nl-sql.html
The routine also runs the generated SQL statement and displays the result set. You can use this routine for generating and running SQL queries only for databases and tables that you have access to. The routine automatically detects these errors, and ...
https://dev.mysql.com/doc/mysql-monitor/8.0/en/mem-advanced-inventory-gui.html
The Inventory page cannot be accessed from the MySQL Enterprise Monitor User Interface. To open the inventory page, you must edit the URL in the browser address bar. To open the Inventory page, enter the following address in your browser: ...
https://dev.mysql.com/doc/connectors/en/connector-j-connp-props-result-sets.html
clobberStreamingResults This will cause a streaming result set to be automatically closed, and any outstanding data still streaming from the server to be discarded if another query is executed before all the data has been read from the server.
https://dev.mysql.com/doc/internals/en/custom-engine-source-files.html
The easiest way to implement a new storage engine is to begin by copying and modifying the EXAMPLE storage engine. The files ha_example.cc and ha_example.h can be found in the storage/example directory of the MySQL 5.1 source tree. For instructions ...
MySQL Enterprise Monitor 8.0 Release Notes :: Changes in MySQL Enterprise Monitor 8.0.3 (2018-10-16)
https://dev.mysql.com/doc/relnotes/mysql-monitor/8.0/en/news-8-0-3.html
Functionality Added or Changed Bugs Fixed Functionality Added or Changed The Tomcat server, bundled with MySQL Enterprise Service Manager, has been upgraded to 8.5.34. Bugs Fixed It was not possible to use the percentage character (%) in filter ...