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C:\Documents and Settings\Administrator>mysql -u root Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.6.11 MySQL Community Server (GPL) Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> show variables like 'read_only'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | read_only | OFF | +---------------+-------+ 1 row in set (0.02 sec) mysql> set global read_only=on; Query OK, 0 rows affected (0.00 sec) mysql> show variables like 'read_only'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | read_only | ON | +---------------+-------+ 1 row in set (0.00 sec) mysql> use test Database changed mysql> show tables; +----------------+ | Tables_in_test | +----------------+ | y2k | +----------------+ 1 row in set (0.00 sec) mysql> select * from y2k; +------------+---------------------+---------------------+ | date | date_time | time_stamp | +------------+---------------------+---------------------+ | 1998-12-31 | 1998-12-31 23:59:59 | 1998-12-31 23:59:59 | | 1999-01-01 | 1999-01-01 00:00:00 | 1999-01-01 00:00:00 | | 1999-09-09 | 1999-09-09 23:59:59 | 1999-09-09 23:59:59 | | 2000-01-01 | 2000-01-01 00:00:00 | 2000-01-01 00:00:00 | | 2000-02-28 | 2000-02-28 00:00:00 | 2000-02-28 00:00:00 | +------------+---------------------+---------------------+ 5 rows in set (0.19 sec) mysql> insert into y2k values ('2000-02-29','2000-02-29 00:00:00',20000229000000 ); Query OK, 1 row affected (0.22 sec) mysql> select * from y2k; +------------+---------------------+---------------------+ | date | date_time | time_stamp | +------------+---------------------+---------------------+ | 1998-12-31 | 1998-12-31 23:59:59 | 1998-12-31 23:59:59 | | 1999-01-01 | 1999-01-01 00:00:00 | 1999-01-01 00:00:00 | | 1999-09-09 | 1999-09-09 23:59:59 | 1999-09-09 23:59:59 | | 2000-01-01 | 2000-01-01 00:00:00 | 2000-01-01 00:00:00 | | 2000-02-28 | 2000-02-28 00:00:00 | 2000-02-28 00:00:00 | | 2000-02-29 | 2000-02-29 00:00:00 | 2000-02-29 00:00:00 | +------------+---------------------+---------------------+ 6 rows in set (0.00 sec) mysql> show variables like 'read_only'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | read_only | ON | +---------------+-------+ 1 row in set (0.00 sec) mysql> create database new; Query OK, 1 row affected (0.03 sec) mysql> use new Database changed mysql> create table y2k (date DATE, time TIME); Query OK, 0 rows affected (0.80 sec) mysql> select database(); +------------+ | database() | +------------+ | new | +------------+ 1 row in set (0.00 sec) mysql> insert into new.y2k values ('2013-5-25', '08:53:00'); Query OK, 1 row affected (0.27 sec) mysql> select * from new.y2k; +------------+----------+ | date | time | +------------+----------+ | 2013-05-25 | 08:53:00 | +------------+----------+ 1 row in set (0.00 sec) mysql>