Mysql 查询所有表的行数和大小
SELECT TABLE_NAME,TABLE_ROWS,DATA_LENGTH/1024/1024 "DATA_LENGTH",CREATE_TIME,TABLE_COLLATION FROM
INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'lir' ORDER BY TABLE_ROWS DESC
- [[email protected] ~]$ mysql -u root -p
- Enter password:
- Welcome to the MySQL monitor. Commands end with ; or \g.
- Your MySQL connection id is 36
- Server version: 5.6.16 MySQL Community Server (GPL)
- Copyright (c) 2000, 2014, 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 database;
- ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'database' at line 1
- mysql> show databases;
- +--------------------+
- | Database |
- +--------------------+
- | information_schema |
- | fire |
- | hive |
- | lir |
- | mysql |
- | performance_schema |
- | test |
- +--------------------+
- 7 rows in set (0.03 sec)
- mysql> use fire;
- Reading table information for completion of table and column names
- You can turn off this feature to get a quicker startup with -A
- Database changed
- mysql> load data infile 'aa.txt' into table firewallb;
- ERROR 13 (HY000): Can't get stat of '/var/lib/mysql/fire/aa.txt' (Errcode: 2 - No such file or directory)
- mysql> load data infile '/home/dss/aa.txt' into table firewallb;
- ERROR 13 (HY000): Can't get stat of '/home/dss/aa.txt' (Errcode: 13 - Permission denied)
- mysql> load data infile '/tmp/aa.txt' into table firewallb;
- Query OK, 10 rows affected (0.07 sec)
- Records: 10 Deleted: 0 Skipped: 0 Warnings: 0
- mysql> load data infile '/tmp/fireb.txt' into table firewallb;
- Query OK, 16600931 rows affected (38 min 25.54 sec)
- Records: 16600931 Deleted: 0 Skipped: 0 Warnings: 0
导入数据文件到mysql
mysql导出数据到文件
SELECT * INTO OUTFILE '/tmp/bb.csv' FIELDS TERMINATED BY ',' LINES TERMINATED BY '\r\n' FROM bb_month;
https://blog.****.net/wind520/article/details/38728655