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https://dev.mysql.com/doc/ndbapi/en/ndb-foreignkey.html
SetNull SET NULL: Perform operation on row from parent table; set any matching foreign key columns in child table to NULL. This is a ForeignKey::FkAction and has one of the values NoAction, Restrict, Cascade, or SetNull. This is a ... This section ...
https://dev.mysql.com/doc/ndbapi/en/ndb-nodejs-examples-requirements.html
The software requirements for running the examples found in the next few sections are as follows: A working Node.js installation Working installations of the ndb and mysql-js adapters The mysql-js adapter also requires a working installation of the ...
https://dev.mysql.com/doc/relnotes/connector-net/en/news-8-0-24.html
(Bug #32150115, Bug #101592) An exception was thrown if any CHAR(36) columns containing a NULL value were referenced in a query. New validation now checks for NULL values when the MySqlDbType member is Guid. Deprecation and Removal Notes ...
https://dev.mysql.com/doc/relnotes/connector-net/en/news-8-0-9.html
(Bug #26198794) EF Core: When attempting to commit a transaction in which the FirstOrDefaultAsync method was called, the connector returned System.InvalidOperationException: Connection must be valid and open to commit transaction instead of ...For ...
https://dev.mysql.com/doc/relnotes/connector-odbc/en/news-8-0-22.html
Functionality Added or Changed Bugs Fixed Functionality Added or Changed For enhanced security of the existing ENABLE_LOCAL_INFILE connection string option, the new ENABLE_LOCAL_DIR option allows restricting LOCAL data loading to files located in ...
https://dev.mysql.com/doc/relnotes/connector-odbc/en/news-8-0-29.html
(Bug #33599093) With prepared statements and NO_CACHE=1, having a NULL value in a row column would nullify a value in the same column of the next row. This produced an incorrect value giving NULL where a non-value was expected. Security Notes ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-config-metric-auditlog-category.html
The value is NULL or a string containing a list of one or more comma-separated account names File The name of the file to which the audit log plugin writes events. The value is NULL or a string containing a list of one or more comma-separated ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-config-metric-statementprocessing-category.html
Lists the Statement Processing configuration metrics and provides a brief description of each. Big Selects Enabled If set to 0, MySQL aborts SELECT statements that are likely to take a very long time to execute (that is, statements for which the ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-connections-pages-database-processes.html
Current Statement The statement the thread is executing, or NULL if it is not executing any statement. Database The default database for the thread, or NULL if there is none. Important This report retrieves data from the processlist view of the sys ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-performance-page-database-file-io.html
Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background. Table 5.2 Database File I/O By Host NameDescription Host The host from which ...