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https://dev.mysql.com/doc/refman/8.0/en/symbolic-links-to-databases.html
On Unix, symlink a database using this procedure: Create the database using CREATE DATABASE: mysql> CREATE DATABASE mydb1; Using CREATE DATABASE creates the database in the MySQL data directory and permits the server to update the data dictionary ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-limitations-database-objects.html
Some database objects such as tables and indexes have different limitations when using the NDBCLUSTER storage engine: Number of database objects. The maximum number of all NDB database objects in a single NDB Cluster—including databases, tables, ...The maximum number of attributes (that is, columns and indexes) that can belong to a given table is ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-database-structure.html
In your role as a database designer, look for the most efficient way to organize your schemas, tables, and columns. Starting with an efficient database design makes it easier for team members to write high-performing application code, and makes the ...As when tuning application code, you minimize I/O, keep related items together, and plan ahead so that performance stays high as the data volume ...
https://dev.mysql.com/doc/refman/8.0/en/firewall-installation.html
The available scripts differ in the file name used to refer to the script: win_install_firewall.sql linux_install_firewall.sql The installation script creates stored procedures in the default database, mysql. Statements use IF EXISTS because, ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-management-range-list.html
Adding and dropping of range and list partitions are handled in a similar fashion, so we discuss the management of both sorts of partitioning in this section. Dropping a partition from a table that is partitioned by either RANGE or by LIST can be ...For information about working with tables that are partitioned by hash or key, see Section 26.3.2, “Management of HASH and KEY ...
https://dev.mysql.com/doc/refman/8.0/en/database-count-limit.html
The underlying file system may have a limit on the number of directories. The underlying file system may have a limit on the number of files that represent tables.
https://dev.mysql.com/doc/refman/8.0/en/mysqldump-copying-database.html
$> mysqldump db1 > dump.sql $> mysqladmin create db2 $> mysql db2 < dump.sql Do not use --databases on the mysqldump command line because that causes USE db1 to be included in the dump file, which overrides the effect of naming db2 on the mysql ...
https://dev.mysql.com/doc/refman/8.0/en/grant.html
Important MySQL does not automatically revoke any privileges when you drop a database or table. The CREATE, DROP, EVENT, GRANT OPTION, LOCK TABLES, and REFERENCES privileges can be specified at the database level. Normally, a database administrator ...[WITH GRANT OPTION] [AS user [WITH ROLE DEFAULT | NONE | ALL | ALL EXCEPT role [, role ] ...
https://dev.mysql.com/doc/refman/8.0/en/general-tablespaces.html
A DROP DATABASE operation can drop tables that belong to a general tablespace but it cannot drop the tablespace, even if the DROP DATABASE operation drops all tables that belong to the tablespace. Dropping a General Tablespace The DROP TABLESPACE ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-javascript-collections-operations.html
mysql-js> db.getCollections() [ <Collection:countryinfo>, <Collection:flags> ] Drop a Collection To drop an existing collection from a schema, use the db object's dropCollection() method. For example, to drop the flags collection from the current ...