Search Results
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-attribute-tables-ndbd.html
ApiFailureHandlingTimeout: Maximum time for API node failure handling before escalating. Arbitration: How arbitration should be performed to avoid split-brain issues in event of node failure. Note that string '/BACKUP' is always appended to this ...
https://dev.mysql.com/doc/mysql-router/9.4/en/router-set-trace.html
MySQL Router supports tracing of statements as they are processed by MySQL Router from client to server and the response to the client. Configuration To configure ROUTER SET trace you must add the following to your MySQL Router configuration file: ...
https://dev.mysql.com/doc/workbench/en/wb-tutorial-visual-explain-dbt3.html
The Type changed from ALL to range, possible keys (and used key) changed from NULL to i_o_orderdate, and the number of scanned rows changed from 1.5 million to about 33 thousand. This tutorial describes how to use Explain reports to locate and fix ...
https://dev.mysql.com/doc/connectors/en/connector-odbc-usagenotes-functionality-last-insert-id.html
In this case, try the following statement as an alternative: SELECT * FROM tbl WHERE auto IS NULL; This alternative method requires that sql_auto_is_null variable is not set to 0. Obtaining the value of column that uses AUTO_INCREMENT after an ...
https://dev.mysql.com/doc/connector-odbc/en/connector-odbc-usagenotes-functionality-last-insert-id.html
In this case, try the following statement as an alternative: SELECT * FROM tbl WHERE auto IS NULL; This alternative method requires that sql_auto_is_null variable is not set to 0. Obtaining the value of column that uses AUTO_INCREMENT after an ...
https://dev.mysql.com/doc/internals/en/com-stmt-execute.html
The flags are: Flags Constant Name 0x00 CURSOR_TYPE_NO_CURSOR 0x01 CURSOR_TYPE_READ_ONLY 0x02 CURSOR_TYPE_FOR_UPDATE 0x04 CURSOR_TYPE_SCROLLABLE NULL-bitmap is like NULL-bitmap for the Binary Protocol Resultset Row just that it has a bit-offset of 0. COM_STMT_EXECUTE asks the server to execute a prepared statement as identified by ...
https://dev.mysql.com/doc/internals/en/starting-transaction-from-external-lock-method.html
MySQL calls [custom-engine.html#custom-engine-api-reference-external_lock handler::external_lock()] for every table it is going to use at the beginning of every statement. Thus, if a table is touched for the first time, it implicitly starts a ...
https://dev.mysql.com/doc/internals/en/transformations-all-any.html
But before above transformation ability of independent ALL/ANY/SOME optimization will be checked (query is independent, operation is one of <, =<, >, >=, returning correct NULL have no sense (top level of WHERE clause) and it is not row subquery).
https://dev.mysql.com/doc/ndbapi/en/ndb-error-codes-constraint-violation.html
The following list enumerates all NDB errors of type CV (Constraint violation).
https://dev.mysql.com/doc/heatwave/en/mys-hw-async-apptask-list.html
If the value is NULL, tasks of all types are listed. If the value is NULL, the offset defaults to 0, and the result is displayed starting from the first row. If the value is NULL, the limit defaults to 20, and up to 20 rows are displayed. The ...