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https://dev.mysql.com/doc/refman/5.7/en/socket-pluggable-authentication.html
Alternatively, to load the plugin at runtime, use this statement: INSTALL PLUGIN auth_socket SONAME 'auth_socket.so'; INSTALL PLUGIN loads the plugin immediately, and also registers it in the mysql.plugins system table to cause the server to load it ...To verify plugin installation, examine the Information Schema PLUGINS table or use the SHOW PLUGINS statement (see Section 5.5.2, “Obtaining Server Plugin ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-file-format-downgrading.html
Each InnoDB tablespace file (with a name matching *.ibd) is tagged with the file format used to create its table and indexes. The way to modify the file format is to re-create the table and its indexes. For information about downgrading to a ...
https://dev.mysql.com/doc/refman/5.7/en/json-search-functions.html
row *************************** id: 1 select_type: SIMPLE table: jemp partitions: NULL type: range possible_keys: i key: i key_len: 5 ref: NULL rows: 2 filtered: 100.00 Extra: Using where 1 row in set, 1 warning (0.00 sec) mysql> SHOW WARNINGS\G ...
https://dev.mysql.com/doc/refman/5.7/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/5.7/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/5.7/en/assigning-passwords.html
MySQL stores credentials in the user table in the mysql system database. Operations that assign or modify passwords are permitted only to users with the CREATE USER privilege, or, alternatively, privileges for the mysql database (INSERT privilege to ... Required credentials for clients that connect to the MySQL server can include a ...
https://dev.mysql.com/doc/refman/5.7/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/5.7/en/copying-databases.html
For large tables, this is much faster than simply using mysqldump. After you import the mysql database on the new machine, execute mysqladmin flush-privileges so that the server reloads the grant table information. Note You can copy the .frm, .MYI, ... In cases where you need to transfer databases between different architectures, you can use mysqldump to create a file containing SQL ...
https://dev.mysql.com/doc/refman/5.7/en/correlated-subqueries.html
A correlated subquery is a subquery that contains a reference to a table that also appears in the outer query. For example: SELECT * FROM t1 WHERE column1 = ANY (SELECT column1 FROM t2 WHERE t2.column2 = t1.column2); Notice that the subquery ...So, ...
https://dev.mysql.com/doc/refman/5.7/en/database-use.html
You can do so by creating tables to hold your data and loading them with the desired information. Then you can answer different sorts of questions about your animals by retrieving data from the tables. Once you know how to enter SQL statements, you ...