mysql的小知识点（关于数据库的导入导出 对于windows）

对于，一个存在的数据，我们该如何去打包成.sql属性的文件呢？

直接进行这两条语句：

D:\Program Files\MySQL\mysql\bin>mysqldump -u root -p bigweb >D://str.sql
Enter password: ***

于是乎，便生成了一个str.sql文件



但我们生成了一个sql过程，如何将其引到数据库中去呢？？ 这里只是对mysql进行 operation ！ ！

首先，我们进入cmd -> mysql -uroot -p*** ;

然后进行这样的操作，mysql> source D://str.sql

这样就可以就导入到数据库中了！！！！

Query OK, 0 rows affected (0.05 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

ERROR 1046 (3D000): No database selected
Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

ERROR 1046 (3D000): No database selected
Query OK, 0 rows affected (0.00 sec)

ERROR 1046 (3D000): No database selected
ERROR 1046 (3D000): No database selected
ERROR 1046 (3D000): No database selected
ERROR 1046 (3D000): No database selected
Query OK, 0 rows affected (0.00 sec)

ERROR 1046 (3D000): No database selected
Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

ERROR 1046 (3D000): No database selected
Query OK, 0 rows affected (0.00 sec)

ERROR 1046 (3D000): No database selected
ERROR 1046 (3D000): No database selected
ERROR 1046 (3D000): No database selected
ERROR 1046 (3D000): No database selected
Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

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