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https://dev.mysql.com/doc/x-devapi-userguide/en/value-expression-strings.html
Value expression strings are used to compute a value which can then be assigned to a given field or column. This is necessary for both modify() and update(), as well as computing values in documents at insertion time. An example use of a value ...
https://dev.mysql.com/doc/x-devapi-userguide-shell-js/en/value-expression-strings.html
Value expression strings are used to compute a value which can then be assigned to a given field or column. This is necessary for both modify() and update(), as well as computing values in documents at insertion time. An example use of a value ...
https://dev.mysql.com/doc/x-devapi-userguide-shell-python/en/value-expression-strings.html
Value expression strings are used to compute a value which can then be assigned to a given field or column. This is necessary for both modify() and update(), as well as computing values in documents at insertion time. An example use of a value ...
https://dev.mysql.com/doc/internals/en/delete-row.html
Synopsis virtual int delete_row ( buf); const byte * buf ; Description This is the delete_row method. buf will contain a copy of the row to be deleted. The server will call this right after the current row has been called (from either a previous ...
https://dev.mysql.com/doc/internals/en/plugin-services-components.html
On the plugin side of the services interface, the relevant information is provided in a set of header files. A plugin accesses this information by including the plugin.h file (which plugins must include anyway): #include <mysql/plugin.h> plugin.h ...
https://dev.mysql.com/doc/internals/en/optimizer-features-to-trace.html
Some features in the optimizer can be invoked many times during statement optimization and execution, and thus can make the trace grow beyond reason. They are: Greedy search: with a N-table join, this could explore factorial(N) plans Range ...
https://dev.mysql.com/doc/internals/en/variation-of-storage-engine.html
Checks of the INFORMATION_SCHEMA The storage engines to be used for information_schema tables are hardcoded. Therefore tests focussed on permissions, optimizer strategies, column data types etc. when selecting on INFORMATION_SCHEMA tables should ...
https://dev.mysql.com/doc/connectors/en/connector-odbc-configuration.html
Before you connect to a MySQL database using the Connector/ODBC driver, you configure an ODBC Data Source Name (DSN). The DSN associates the various configuration parameters required to communicate with a database to a specific name. You use the ...
https://dev.mysql.com/doc/connector-odbc/en/connector-odbc-configuration.html
Before you connect to a MySQL database using the Connector/ODBC driver, you configure an ODBC Data Source Name (DSN). The DSN associates the various configuration parameters required to communicate with a database to a specific name. You use the ...
https://dev.mysql.com/doc/internals/en/sleep.html
In some cases race conditions can be repeated when all but one thread are blocked (for example waiting for an SQL lock). Then the remaining thread has plenty of time to go through the critical piece of code. The problem here is to assure that the ...