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https://dev.mysql.com/doc/refman/5.7/en/sys-statement-performance-analyzer.html
If in_table is NULL and no snapshot exists, a new snapshot is created. Creates a report of the statements running on the server. The views are calculated based on the overall and/or delta activity. This procedure disables binary logging during its ...
https://dev.mysql.com/doc/refman/5.7/en/audit-log-legacy-filtering.html
The value for either variable can be NULL or a string containing one or more comma-separated account names, each in user_name@host_name format. By default, both variables are NULL, in which case, no account filtering is done and auditing occurs for ... Note This section describes legacy audit log filtering, which applies under either of these circumstances: Before MySQL 5.7.13, that is, prior to the introduction of rule-based audit log filtering described in Section 6.4.5.7, “Audit Log ...
https://dev.mysql.com/doc/refman/5.7/en/partitioning-limitations.html
However, the result must be an integer value or NULL (except in the case of [LINEAR] KEY partitioning, as discussed elsewhere in this chapter; see Section 22.2, “Partitioning Types”, for more information). A partitioning key may not be a ...
https://dev.mysql.com/doc/refman/5.7/en/replication-administration-skip.html
If replication stops due to an issue with an event in a replicated transaction, you can resume replication by skipping the failed transaction on the replica. Before skipping a transaction, ensure that the replication I/O thread is stopped as well ...
https://dev.mysql.com/doc/refman/5.7/en/pluggable-authentication-system-variables.html
authentication_ldap_sasl_bind_base_dn Command-Line Format --authentication-ldap-sasl-bind-base-dn=value System Variable authentication_ldap_sasl_bind_base_dn Scope Global Dynamic Yes Type String Default Value NULL For SASL LDAP authentication, the ...Communication between the authentication plugin and the LDAP server occurs according to this authentication method to ensure password ...
https://dev.mysql.com/doc/refman/5.7/en/version-tokens-reference.html
| +------------------------------------+ An argument of NULL is treated as an empty string, which has no effect on the token list. (It is not an error to delete nonexisting tokens.) To clear the token list entirely without knowing which tokens are ... The following discussion serves as a reference to these Version Tokens elements: Version Tokens Functions Version Tokens System Variables Version Tokens Functions The Version Tokens plugin library includes several ...
https://dev.mysql.com/doc/refman/5.7/en/gis-wkb-functions.html
The result is NULL if the WKB or SRID argument is NULL. The result is NULL if the WKB or SRID argument is NULL. The result is NULL if the WKB or SRID argument is NULL. The result is NULL if the WKB or SRID argument is NULL. The result is NULL if the ... These functions take as arguments a BLOB containing a Well-Known Binary (WKB) representation and, optionally, a spatial reference system identifier ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-online-add-node-example.html
In this section we provide a detailed example illustrating how to add new NDB Cluster data nodes online, starting with an NDB Cluster having 2 data nodes in a single node group and concluding with a cluster having 4 data nodes in 2 node groups.
https://dev.mysql.com/doc/refman/5.7/en/xml-functions.html
Table 12.16 XML Functions Name Description ExtractValue() Extract a value from an XML string using XPath notation UpdateXML() Return replaced XML fragment This section discusses XML and related functionality in MySQL. Note It is possible to obtain ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-auto-increment-handling.html
An example follows, where c1 is an AUTO_INCREMENT column of table t1: INSERT INTO t1 (c1,c2) VALUES (1,'a'), (NULL,'b'), (5,'c'), (NULL,'d'); Another type of “mixed-mode insert” is INSERT ... To make this clear, consider an example that uses ...