mysql> CREATE TABLE users ( -> id INT AUTO_INCREMENT PRIMARY KEY, -> username VARCHAR(255) NOT NULL, -> password VARCHAR(255) NOT NULL -> ); Query OK, 0 rows affected (0.06 sec) mysql> Welcome to the MySQL monitor. Commands end with ; or \g. 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 'Welcom e to the MySQL monitor. Commands end with' at line 1 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 'or' at line 1 -> Your MySQL connection id is 54623110 -> Server version: 8.0.32 Source distribution -> Copyright (c) 2000, 2022, Oracle and/or its affiliates. -> 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> CREATE TABLE users ( -> -> id INT AUTO_INCREMENT PRIMARY KEY, -> -> username VARCHAR(255) NOT NULL, -> -> password VARCHAR(255) NOT NULL -> -> ); 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 '. Your MySQL connection id is 54623110 Server version: 8.0.32 Source distributio' at line 1 mysql> Query OK, 0 rows affected (0.06 sec) -> mysql> -> SHOW TABLES; 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 'Query OK, 0 rows affected (0.06 sec) mysql> SHOW TABLES' at line 1 mysql>
时间: 2023-10-30 14:47:39 浏览: 249
在你的输入中,出现了一些错误。请注意在 MySQL 命令行中输入命令时的语法和顺序。下面是修正后的示例:
```
mysql> CREATE TABLE users (
-> id INT AUTO_INCREMENT PRIMARY KEY,
-> username VARCHAR(255) NOT NULL,
-> password VARCHAR(255) NOT NULL
-> );
Query OK, 0 rows affected (0.06 sec)
mysql> SHOW TABLES;
```
你可以将以上代码复制到 MySQL 命令行中执行。第一段代码用于创建名为 `users` 的表,并定义了三个列:`id`、`username` 和 `password`。第二段代码用于查看数据库中的表的列表。执行完这两段代码后,你应该能够成功创建表并查看到该表。
确保在输入命令时不要复制其他额外的文本,只复制正确的代码段即可。如果仍然遇到问题,请检查 MySQL 版本和语法是否匹配,并确保正确输入命令。
相关问题
Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 54623110 Server version: 8.0.32 Source distribution Copyright (c) 2000, 2022, Oracle and/or its affiliates. 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> CREATE TABLE users ( -> id INT AUTO_INCREMENT PRIMARY KEY, -> username VARCHAR(255) NOT NULL, -> password VARCHAR(255) NOT NULL -> ); Query OK, 0 rows affected (0.06 sec) mysql> 怎么查看数据库‘
要查看数据库中的表,可以使用以下命令:
```
SHOW TABLES;
```
在MySQL中,执行上述命令后,将返回一个包含当前数据库中所有表的列表。
如果你想查看某个特定表的结构和数据,可以使用以下命令:
```
DESCRIBE table_name;
```
将 `table_name` 替换为要查看的表的名称,执行该命令后,将返回该表的列信息和数据类型。
另外,如果你想查看表中的数据,可以使用以下命令:
```
SELECT * FROM table_name;
```
同样,将 `table_name` 替换为要查看的表的名称,执行该命令后,将返回该表中的所有数据。
请确保在执行这些命令之前已经连接到正确的数据库。
你写的出现了这个警告,00:24:48 create table users ( id INT NOT NULL AUTO_INCREMENT, username VARCHAR(20) NOT NULL, password VARCHAR(20) NOT NULL, remember_me TINYINT(1) NOT NULL DEFAULT 0, PRIMARY KEY (id) ) 0 row(s) affected, 1 warning(s): 1681 Integer display width is deprecated and will be removed in a future release. 0.015 sec
非常抱歉,我没有注意到这个警告。这是因为在 MySQL 8.0 版本中,不再支持在 INT 数据类型上使用显示宽度。因此,我们需要将 `id INT` 修改为 `id INT(11)`,这样就可以消除警告。修改后的 SQL 代码如下:
```sql
CREATE TABLE users (
id INT(11) NOT NULL AUTO_INCREMENT,
username VARCHAR(50) NOT NULL,
password VARCHAR(50) NOT NULL,
remember_me TINYINT(1) NOT NULL DEFAULT 0,
PRIMARY KEY (id)
);
```
感谢您的提醒,我会注意这个问题并改进我的回答。
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