> For the complete documentation index, see [llms.txt](https://ret2basic.gitbook.io/ctfnote/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ret2basic.gitbook.io/ctfnote/computer-science/databases/mysql/basic-syntax.md).

# Basic Syntax

Create a new database:

```sql
CREATE DATABASE db1;
```

Show existing databases:

```sql
SHOW DATABASES;
```

Use a database:

```sql
use db1
```

Display current database:

```sql
SELECT DATABASE();
```

Create a new table:

```sql
CREATE TABLE tb1 (empid VARCHAR(10),name VARCHAR(10),age INT);
```

Show all tables:

```sql
SHOW TABLES;
```

Examine the columns of a table (`DESC == DESCRIBE`):

```sql
DESC tb1;
```

Insert five entries into a table:

```sql
INSERT INTO tb1 (empid,name,age)
VALUES ('A101','employee1',40),
('A102','employee2',28),
('A103','employee3',20),
('A104','employee4',23),
('A105','employee5',35);
```

Show all records from a table:

```sql
SELECT * FROM tb1;
```

Duplicate the table manually:

```sql
CREATE TABLE tb1A SELECT * FROM tb1;
CREATE TABLE tb1B SELECT * FROM tb1;
...
CREATE TABLE tb1K SELECT * FROM tb1;
```


---

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