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https://dev.mysql.com/doc/refman/8.0/en/version-tokens-usage.html
Locking service locks can be monitored using the Performance Schema, so this is also true for Version Tokens locks. Before using Version Tokens, install it according to the instructions provided at Section 7.6.6.2, “Installing or Uninstalling ...
https://dev.mysql.com/doc/refman/8.0/en/view-updatability.html
The flag is set to YES (true) if UPDATE and DELETE (and similar operations) are legal for the view. Some views are updatable and references to them can be used to specify tables to be updated in data change statements. That is, you can use them in ...
https://dev.mysql.com/doc/refman/8.0/en/while.html
[begin_label:] WHILE search_condition DO statement_list END WHILE [end_label] The statement list within a WHILE statement is repeated as long as the search_condition expression is true. statement_list consists of one or more SQL statements, each ...
https://dev.mysql.com/doc/refman/8.0/en/windows-create-option-file.html
This is particularly true under the following circumstances: The installation or data directory locations are different from the default locations (C:\Program Files\MySQL\MySQL Server 8.0 and C:\Program Files\MySQL\MySQL Server 8.0\data). If you ...
https://dev.mysql.com/doc/refman/8.0/en/windows-postinstallation.html
If that is not true, adjust the command path names accordingly. GUI tools exist that perform most of the tasks described in this section, including: MySQL Installer: Used to install and upgrade MySQL products. If necessary, initialize the data ...
https://dev.mysql.com/doc/refman/8.0/en/working-with-null.html
In MySQL, 0 or NULL means false and anything else means true. The NULL value can be surprising until you get used to it. Conceptually, NULL means “a missing unknown value” and it is treated somewhat differently from other values. This special ...
https://dev.mysql.com/doc/refman/8.0/en/xa-restrictions.html
The implementation of internal XA requires that a storage engine support two-phase commit at the table handler level, and currently this is true only for InnoDB. XA transaction support is limited to the InnoDB storage engine. For “external XA,” ...
https://dev.mysql.com/doc/refman/8.0/en/xml-functions.html
Table 14.16 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 ...