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https://dev.mysql.com/doc/refman/8.0/en/optimizing-myisam-bulk-data-loading.html
For a MyISAM table, you can use concurrent inserts to add rows at the same time that SELECT statements are running, if there are no deleted rows in middle of the data file. With some extra work, it is possible to make LOAD DATA run even faster for a ... These performance tips supplement the general guidelines for fast inserts in Section 10.2.5.1, “Optimizing INSERT ...
https://dev.mysql.com/doc/refman/8.0/en/gis-data-formats.html
Two standard spatial data formats are used to represent geometry objects in queries: Well-Known Text (WKT) format Well-Known Binary (WKB) format Internally, MySQL stores geometry values in a format that is not identical to either WKT or WKB format.
https://dev.mysql.com/doc/refman/8.0/en/data-masking-components-installation.html
URN: file://component_masking_functions To set up MySQL Enterprise Data Masking and De-Identification, do the following: Create the masking_dictionaries table. CREATE TABLE IF NOT EXISTS mysql.masking_dictionaries( Dictionary VARCHAR(256) NOT NULL, ...Before you begin the component installation, remove the data_masking plugin and all of its loadable functions to avoid ...For ...
https://dev.mysql.com/doc/refman/8.0/en/data-dictionary-transactional-storage.html
The mysql.ibd tablespace file must reside in the MySQL data directory and its name cannot be modified or used by another tablespace. The data dictionary schema stores dictionary data in transactional (InnoDB) tables. Data dictionary tables are ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-perror.html
This includes the error message, the type of error, and whether the error is permanent or temporary. To make substitution easier in scripts and other applications that might depend on perror for obtaining NDB error information, ndb_perror supports ... ndb_perror shows information about an NDB error, given its error ...--defaults-group-suffix Command-Line Format --defaults-group-suffix=string Type ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-encrypted-data.html
When cloning data to a local data directory that uses a locally managed keyring, the same keyring must be used when starting the MySQL server on the clone directory. When cloning data to a remote data directory (the recipient directory) that uses a ...The following requirements apply: A secure connection is required when cloning remote data to ensure safe transfer of unencrypted tablespace keys over the ...
https://dev.mysql.com/doc/refman/8.0/en/data-directory.html
Information managed by the MySQL server is stored under a directory known as the data directory. The following list briefly describes the items typically found in the data directory, with cross references for additional information: Data directory ...The performance_schema directory corresponds to the Performance Schema, which provides information used to inspect the internal execution of the server at ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-install-example-data.html
To create a copy of the entire world database on the SQL node, use mysqldump on the noncluster server to export the database to a file named world.sql (for example, in the /tmp directory). It is important to remember that your application must ...
https://dev.mysql.com/doc/refman/8.0/en/error-lost-connection.html
Usually it indicates network connectivity trouble and you should check the condition of your network if this error occurs frequently. If the error message includes “during query,” this is probably the case you are experiencing. If you know that ...Sometimes the “during query” form happens when millions of rows are being sent as part of one or more ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-enterprise-data-masking.html
MySQL Enterprise Edition 5.7 and higher includes MySQL Enterprise Data Masking and De-Identification, implemented as a plugin library containing a plugin and several loadable functions. Data masking hides sensitive information by replacing real ...