mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-16 19:32:07 +00:00
cd14f9ebcb
* split up select.md * array-join.md basic refactoring * distinct.md basic refactoring * format.md basic refactoring * from.md basic refactoring * group-by.md basic refactoring * having.md basic refactoring * additional index.md refactoring * into-outfile.md basic refactoring * join.md basic refactoring * limit.md basic refactoring * limit-by.md basic refactoring * order-by.md basic refactoring * prewhere.md basic refactoring * adjust operators/index.md links * adjust sample.md links * adjust more links * adjust operatots links * fix some links * adjust aggregate function article titles * basic refactor of remaining select clauses * absolute paths in make_links.sh * run make_links.sh * remove old select.md locations * translate docs/es * translate docs/fr * translate docs/fa * remove old operators.md location * change operators.md links * adjust links in docs/es * adjust links in docs/es * minor texts adjustments * wip * update machine translations to use new links * fix changelog * es build fixes * get rid of some select.md links * temporary adjust ru links * temporary adjust more ru links * improve curly brace handling * adjust ru as well * fa build fix * ru link fixes * zh link fixes * temporary disable part of anchor checks
136 lines
4.2 KiB
Markdown
136 lines
4.2 KiB
Markdown
---
|
|
machine_translated: true
|
|
machine_translated_rev: 72537a2d527c63c07aa5d2361a8829f3895cf2bd
|
|
toc_priority: 30
|
|
toc_title: MySQL
|
|
---
|
|
|
|
# MySQL {#mysql}
|
|
|
|
Permet de se connecter à des bases de données sur un serveur MySQL distant et `INSERT` et `SELECT` requêtes pour échanger des données entre Clickhouse et MySQL.
|
|
|
|
Le `MySQL` moteur de base de données traduire les requêtes sur le serveur MySQL afin que vous puissiez effectuer des opérations telles que `SHOW TABLES` ou `SHOW CREATE TABLE`.
|
|
|
|
Vous ne pouvez pas effectuer les requêtes suivantes:
|
|
|
|
- `RENAME`
|
|
- `CREATE TABLE`
|
|
- `ALTER`
|
|
|
|
## La création d'une Base de données {#creating-a-database}
|
|
|
|
``` sql
|
|
CREATE DATABASE [IF NOT EXISTS] db_name [ON CLUSTER cluster]
|
|
ENGINE = MySQL('host:port', ['database' | database], 'user', 'password')
|
|
```
|
|
|
|
**Les Paramètres Du Moteur**
|
|
|
|
- `host:port` — MySQL server address.
|
|
- `database` — Remote database name.
|
|
- `user` — MySQL user.
|
|
- `password` — User password.
|
|
|
|
## Types De Données Soutien {#data_types-support}
|
|
|
|
| MySQL | ClickHouse |
|
|
|----------------------------------|--------------------------------------------------------------|
|
|
| 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 | [Date](../../sql-reference/data-types/date.md) |
|
|
| DATETIME, TIMESTAMP | [DateTime](../../sql-reference/data-types/datetime.md) |
|
|
| BINARY | [FixedString](../../sql-reference/data-types/fixedstring.md) |
|
|
|
|
Tous les autres types de données MySQL sont convertis en [Chaîne](../../sql-reference/data-types/string.md).
|
|
|
|
[Nullable](../../sql-reference/data-types/nullable.md) est pris en charge.
|
|
|
|
## Exemples D'utilisation {#examples-of-use}
|
|
|
|
Table dans 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;
|
|
+------+-----+
|
|
| int_id | value |
|
|
+------+-----+
|
|
| 1 | 2 |
|
|
+------+-----+
|
|
1 row in set (0,00 sec)
|
|
```
|
|
|
|
Base de données dans ClickHouse, échange de données avec le serveur 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 │
|
|
└────────┴───────┘
|
|
```
|
|
|
|
[Article Original](https://clickhouse.tech/docs/en/database_engines/mysql/) <!--hide-->
|