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https://dev.mysql.com/doc/mysqld-version-reference/en/built-in-functions.html
The following table shows all built-in functions and operators available in MySQL Server. Introduced: The version or versions in which the item was introduced. Deprecated: The version or versions in which the item was deprecated. Removed: The ...
https://dev.mysql.com/doc/ndbapi/en/mccj-clusterj-query-predicateoperand.html
Table 4.108 in(PredicateOperand) Parameter Description other another PredicateOperand return a new Predicate 4.3.3.2.7 isNotNull() public abstract Predicate isNotNull(); Return a Predicate representing comparing this to not null. Table 4.109 ...
https://dev.mysql.com/doc/ndbapi/en/mgm-concepts.html
A NULL value indicates an error; otherwise, the return value must be freed by the programmer. A constant pointer value, with a NULL value indicating an error. This section describes concepts basic to the NDB Cluster MGM API. NdbMgmHandle Working ...
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/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-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 ...
https://dev.mysql.com/doc/x-devapi-userguide/en/mysql-x-expressions-ebnf-definitions.html
This section provides a visual reference guide to the grammar for the expression language used in X DevAPI.
https://dev.mysql.com/doc/mysql-secure-deployment-guide/8.0/en/secure-deployment-post-install.html
If you do not intend to permit import or export operations, set secure_file_priv to NULL, which disables import and export operations entirely. Post-installation setup involves creating a safe directory for import and export operations, configuring ...
https://dev.mysql.com/doc/x-devapi-userguide-shell-js/en/mysql-x-expressions-ebnf-definitions.html
This section provides a visual reference guide to the grammar for the expression language used in X DevAPI.