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https://dev.mysql.com/doc/refman/8.0/en/show.html
SHOW has many forms that provide information about databases, tables, columns, or status information about the server. In addition, you can work in SQL with results from queries on tables in the INFORMATION_SCHEMA database, which you cannot easily ...The pattern is useful for restricting statement output to matching ...
https://dev.mysql.com/doc/refman/8.0/en/subquery-errors.html
In MySQL 8.0.19 and later, all of the errors described in this section also apply when using TABLE in subqueries. Incorrect number of rows from subquery: ERROR 1242 (ER_SUBSELECT_NO_1_ROW) SQLSTATE = 21000 Message = "Subquery returns more than 1 ...
https://dev.mysql.com/doc/refman/8.0/en/resetting-permissions.html
Alternatively, on any platform, you can reset the password using the mysql client (but this approach is less secure): Stop the MySQL server if necessary, then restart it with the --skip-grant-tables option. If you know the root password and want to ... If you have never assigned a root password for MySQL, the server does not require a password at all for connecting as ...
https://dev.mysql.com/doc/refman/8.0/en/charset-database.html
The CREATE DATABASE and ALTER DATABASE statements have optional clauses for specifying the database character set and collation: CREATE DATABASE db_name [[DEFAULT] CHARACTER SET charset_name] [[DEFAULT] COLLATE collation_name] ALTER DATABASE db_name ... Every database has a database character set and a database ...
https://dev.mysql.com/doc/refman/8.0/en/password-logging.html
In particular, INSERT or UPDATE statements for the mysql.user system table that refer to literal passwords are logged as is, so you should avoid such statements. (Direct modification of grant tables is discouraged, anyway.) For the general query ...
https://dev.mysql.com/doc/refman/8.0/en/linux-installation-rpm.html
A standard installation of MySQL using the RPM packages result in files and resources created under the system directories, shown in the following table. The recommended way to install MySQL on RPM-based Linux distributions is by using the RPM ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-limitations-unsupported.html
If a prefix is used as part of an index specification in a statement such as CREATE TABLE, ALTER TABLE, or CREATE INDEX, the prefix is not created by NDB. A number of features supported by other storage engines are not supported for NDB tables. A ...Trying to use any of these features in NDB Cluster does not cause errors in or of itself; however, errors may occur in applications that expects the features to be supported or ...
https://dev.mysql.com/doc/refman/8.0/en/replication-rules.html
For statements affecting databases only (that is, CREATE DATABASE, DROP DATABASE, and ALTER DATABASE), database-level options always take precedence over any --replicate-wild-do-table options. You should not use these options to control which ... If ...
https://dev.mysql.com/doc/refman/8.0/en/timestamp-lookups.html
In the preceding discussion, the data set stored in tstable happens to consist of distinct UTC values. If the index is not UNIQUE, it is possible for the table (and the index) to store multiple instances of a given UTC value. Temporal values are ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-invoked.html
You can do this by storing in a separate table the event names from the SELECT statement shown previously, or using ALTER EVENT statements to rename the events with a common prefix such as replicated_ to identify them. The following statements are ... Replication of invoked features such as loadable functions and stored programs (stored procedures and functions, triggers, and events) provides the following characteristics: The effects of the feature are always ...