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---
machine_translated: true
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machine_translated_rev: 72537a2d527c63c07aa5d2361a8829f3895cf2bd
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toc_priority: 30
toc_title: MySQL
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---
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# MySQL {#mysql}
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Permite conectarse a bases de datos en un servidor MySQL remoto y realizar `INSERT` y `SELECT` consultas para intercambiar datos entre ClickHouse y MySQL.
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El `MySQL` motor de base de datos traducir consultas al servidor MySQL para que pueda realizar operaciones tales como `SHOW TABLES` o `SHOW CREATE TABLE` .
No puede realizar las siguientes consultas:
- `RENAME`
- `CREATE TABLE`
- `ALTER`
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## Creación de una base de datos {#creating-a-database}
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``` sql
CREATE DATABASE [IF NOT EXISTS] db_name [ON CLUSTER cluster]
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ENGINE = MySQL('host:port', ['database' | database], 'user', 'password')
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```
**Parámetros del motor**
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- `host:port` — MySQL server address.
- `database` — Remote database name.
- `user` — MySQL user.
- `password` — User password.
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## Soporte de tipos de datos {#data_types-support}
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| MySQL | Haga clic en Casa |
|----------------------------------|--------------------------------------------------------------|
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| UNSIGNED TINYINT | [UInt8 ](../../sql-reference/data-types/int-uint.md ) |
| TINYINT | [Int8 ](../../sql-reference/data-types/int-uint.md ) |
| UNSIGNED SMALLINT | [UInt16 ](../../sql-reference/data-types/int-uint.md ) |
| SMALLINT | [Int16 ](../../sql-reference/data-types/int-uint.md ) |
| UNSIGNED INT, UNSIGNED MEDIUMINT | [UInt32 ](../../sql-reference/data-types/int-uint.md ) |
| INT, MEDIUMINT | [Int32 ](../../sql-reference/data-types/int-uint.md ) |
| UNSIGNED BIGINT | [UInt64 ](../../sql-reference/data-types/int-uint.md ) |
| BIGINT | [Int64 ](../../sql-reference/data-types/int-uint.md ) |
| FLOAT | [Float32 ](../../sql-reference/data-types/float.md ) |
| DOUBLE | [Float64 ](../../sql-reference/data-types/float.md ) |
| DATE | [Fecha ](../../sql-reference/data-types/date.md ) |
| DATETIME, TIMESTAMP | [FechaHora ](../../sql-reference/data-types/datetime.md ) |
| BINARY | [Cadena fija ](../../sql-reference/data-types/fixedstring.md ) |
Todos los demás tipos de datos MySQL se convierten en [Cadena ](../../sql-reference/data-types/string.md ).
[NULL ](../../sql-reference/data-types/nullable.md ) se admite.
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## Ejemplos de uso {#examples-of-use}
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Tabla en MySQL:
``` text
mysql> USE test;
Database changed
mysql> CREATE TABLE `mysql_table` (
-> `int_id` INT NOT NULL AUTO_INCREMENT,
-> `float` FLOAT NOT NULL,
-> PRIMARY KEY (`int_id`));
Query OK, 0 rows affected (0,09 sec)
mysql> insert into mysql_table (`int_id`, `float` ) VALUES (1,2);
Query OK, 1 row affected (0,00 sec)
mysql> select * from mysql_table;
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+------+-----+
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| int_id | value |
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+------+-----+
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| 1 | 2 |
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+------+-----+
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1 row in set (0,00 sec)
```
Base de datos en ClickHouse, intercambiando datos con el servidor MySQL:
``` sql
CREATE DATABASE mysql_db ENGINE = MySQL('localhost:3306', 'test', 'my_user', 'user_password')
```
``` sql
SHOW DATABASES
```
``` text
┌─name─────┐
│ default │
│ mysql_db │
│ system │
└──────────┘
```
``` sql
SHOW TABLES FROM mysql_db
```
``` text
┌─name─────────┐
│ mysql_table │
└──────────────┘
```
``` sql
SELECT * FROM mysql_db.mysql_table
```
``` text
┌─int_id─┬─value─┐
│ 1 │ 2 │
└────────┴───────┘
```
``` sql
INSERT INTO mysql_db.mysql_table VALUES (3,4)
```
``` sql
SELECT * FROM mysql_db.mysql_table
```
``` text
┌─int_id─┬─value─┐
│ 1 │ 2 │
│ 3 │ 4 │
└────────┴───────┘
```
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[Artículo Original ](https://clickhouse.tech/docs/en/database_engines/mysql/ ) <!--hide-->