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https://dev.mysql.com/doc/refman/8.0/en/deallocate-prepare.html
If too many prepared statements are created and not deallocated by either the DEALLOCATE PREPARE statement or the end of the session, you might encounter the upper limit enforced by the max_prepared_stmt_count system variable. {DEALLOCATE | DROP} ...
https://dev.mysql.com/doc/refman/8.0/en/diagnostics-area.html
SQL statements produce diagnostic information that populates the diagnostics area. Standard SQL has a diagnostics area stack, containing a diagnostics area for each nested execution context. Standard SQL also supports GET STACKED DIAGNOSTICS syntax ...
https://dev.mysql.com/doc/refman/8.0/en/document-store.html
For example, when you create documents describing products, you do not need to know and define all possible attributes of any products before storing and operating with the documents. This chapter introduces an alternative way of working with MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/downgrading.html
In-place means starting and running a new MySQL server binary on an existing MySQL data directory that was created by a different MySQL server version. Downgrading from MySQL 8.0 to MySQL 5.7 is not supported. In-place downgrades are supported from ...
https://dev.mysql.com/doc/refman/8.0/en/drop-procedure.html
(If the automatic_sp_privileges system variable is enabled, that privilege and EXECUTE are granted automatically to the routine creator when the routine is created and dropped from the creator when the routine is dropped. DROP {PROCEDURE | ...
https://dev.mysql.com/doc/refman/8.0/en/drop-table.html
A TEMPORARY table is visible only with the session that created it, so no check is necessary. Be careful with this statement! For each table, it removes the table definition and all table data. If the table is partitioned, the statement removes the ...
https://dev.mysql.com/doc/refman/8.0/en/entering-queries.html
At this point, it is more important to find out a little about how to issue queries than to jump right in creating tables, loading data into them, and retrieving data from them. Make sure that you are connected to the server, as discussed in the ...
https://dev.mysql.com/doc/refman/8.0/en/enterprise-encryption.html
Note MySQL Enterprise Encryption is an extension included in MySQL Enterprise Edition, a commercial product. MySQL Enterprise Edition includes a set of encryption functions that expose OpenSSL capabilities at the SQL level. From MySQL 8.0.30, they ...
https://dev.mysql.com/doc/refman/8.0/en/error-interfaces.html
SHOW ENGINE INNODB STATUS statement output includes information about the most recent foreign key error if a CREATE TABLE statement for an InnoDB table fails. Error messages can originate on the server side or the client side, and each error ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-event-fields.html
A user-defined field does not exist until created by a log filter. Error events intended for the error log contain a set of fields, each of which consists of a key/value pair. An event field may be classified as core, optional, or user-defined: A ...