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https://dev.mysql.com/doc/refman/5.7/en/innodb-information-schema-temp-table-info.html
INNODB_TEMP_TABLE_INFO provides information about user-created InnoDB temporary tables that are active in the InnoDB instance. Create a simple InnoDB temporary table: mysql> CREATE TEMPORARY TABLE t1 (c1 INT PRIMARY KEY) ENGINE=INNODB; Query ...It ...
https://dev.mysql.com/doc/refman/5.7/en/partitioning-key.html
Partitioning by key is similar to partitioning by hash, except that where hash partitioning employs a user-defined expression, the hashing function for key partitioning is supplied by the MySQL server. PARTITION BY KEY are similar to those for ...
https://dev.mysql.com/doc/refman/5.7/en/replication-gtids-functions.html
This section provides examples of stored functions (see Chapter 23, Stored Objects) which you can create using some of the built-in functions provided by MySQL for use with GTID-based replication, listed here: GTID_SUBSET(): Shows whether one GTID ...GTID_SUBTRACT(): Returns the GTIDs from one GTID set that are not in ...
https://dev.mysql.com/doc/refman/5.7/en/stored-program-restrictions.html
Because local variables are in scope only during stored program execution, references to them are not permitted in prepared statements created within a stored program. An event may not be created, altered, or dropped from within a stored program, if ...Some of the restrictions noted here apply to all stored routines; that is, both to stored procedures and stored ...
https://dev.mysql.com/doc/refman/5.7/en/enum.html
For example, this CREATE TABLE statement does not work because the CONCAT function cannot be used to construct an enumeration value: CREATE TABLE sizes ( size ENUM('small', CONCAT('med','ium'), 'large') ); You also cannot employ a user variable as ... An ENUM is a string object with a value chosen from a list of permitted values that are enumerated explicitly in the column specification at table creation ...
https://dev.mysql.com/doc/refman/5.7/en/index-page-merge-threshold.html
Setting MERGE_THRESHOLD for a Table You can set the MERGE_THRESHOLD value for a table using the table_option COMMENT clause of the CREATE TABLE statement. row *************************** INDEX_ID: 91 NAME: id_index TABLE_ID: 68 TYPE: 0 N_FIELDS: 1 ...If the “page-full” percentage for an index page falls below the MERGE_THRESHOLD value when a row is deleted or when a row is shortened by an UPDATE operation, InnoDB attempts to merge the index page with a neighboring index ...
https://dev.mysql.com/doc/refman/5.7/en/ipv6-brokers.html
Create an account at Freenet6 by visiting this URL and signing up: http://gogonet.gogo6.com After creating the account, go to this URL, sign in, and create a user ID and password for the IPv6 broker: ...If so, any accounts you create that name the ...For example: userid=gogouser passwd=gogopass Start gogoc: $> /etc/init.d/gogoc start To start gogoc each time your system boots, execute this command: $> rc-update add gogoc default Use ping6 to try to ping a host: $> ping6 ipv6.google.com To see your IPv6 address: $> ifconfig tun ...
https://dev.mysql.com/doc/refman/5.7/en/stored-routines-privileges.html
The MySQL grant system takes stored routines into account as follows: The CREATE ROUTINE privilege is needed to create stored routines. The creator of a routine is the account used to execute the CREATE statement for it. This privilege is granted ...The ALTER ROUTINE privilege is needed to alter or drop stored ...
https://dev.mysql.com/doc/refman/5.7/en/can-not-connect-to-server.html
Locate the following key in the registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters On the Edit menu, click Add Value, and then add the following registry value: Value Name: MaxUserPort Data Type: REG_DWORD Value: 65534 ... A MySQL client on Unix can connect to the mysqld server in two different ways: By using a Unix socket file to connect through a file in the file system (default /tmp/mysql.sock), or by using TCP/IP, which connects through a port ...
https://dev.mysql.com/doc/refman/5.7/en/explain-extended.html
For results consisting of multiple values, a temporary table may be created and you might see <temporary table> instead. <in_optimizer>(query fragment) This is an internal optimizer object with no user significance. <ref_null_helper>(expr) This is ... For SELECT statements, the EXPLAIN statement produces extra (“extended”) information that is not part of EXPLAIN output but can be viewed by issuing a SHOW WARNINGS statement following ...