select.md

# 基本语法

下列 SQL 语句，哪一项不合法？

<hr/>

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* `show databases;` 列出所有数据库
* `show tables;` 列出所有表

## 答案

```sql
from test select abc;
```

## 选项


### A

```sql
select 3.14;
```

### B

```sql
select * from employee;
```

### C

```sql
select * from employee where dept = 'hr';
```

### D

```sql
select id, name, dept, salary 
from employee 
where salary > 10000;
```

### E

```sql
select now();
```