mysql5.7基础 删除表格中某列为指定数据的 一行
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Operating System:UbuntuKylin 16.04 LTS 64bit
mysql: Ver 14.14 Distrib 5.7.17, for Linux (x86_64) using EditLine wrapper
登录:
展示所有数据库:
进入一个指定的数据库:
[email protected]:~$ mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 13 Server version: 5.7.17-0ubuntu0.16.04.1 (Ubuntu) Copyright (c) 2000, 2016, 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 databases; +--------------------+ | Database | +--------------------+ | information_schema | | myFirstDB | | mysql | | performance_schema | | phpmyadmin | | sys | +--------------------+ 6 rows in set (0.00 sec) mysql> use myFirstDB 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
查看当前数据库下的所有表格:
查看指定表下的所有内容:
mysql> show tables; +---------------------+ | Tables_in_myFirstDB | +---------------------+ | FirstTable | | PersonalInformation | +---------------------+ 2 rows in set (0.00 sec) mysql> select * from PersonalInformation; +------+---------------+ | nid | name | +------+---------------+ | 0 | xinjinzhigang | | 1 | xinjinzhigang | +------+---------------+ 2 rows in set (0.00 sec)
删除 PersonalInformation 表中 nid列的内容 为0的 行
code:
mysql> delete from PersonalInformation where nid = 0 -> ; #删除 PersonalInformation 表中 nid列的内容 为0的 行
result:
Query OK, 1 row affected (0.05 sec)
查看删除内容后的表格内容:
退出mysql:
mysql> select * from PersonalInformation; +------+---------------+ | nid | name | +------+---------------+ | 1 | xinjinzhigang | +------+---------------+ 1 row in set (0.00 sec) mysql> exit Bye [email protected]:~$
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