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50 lines
1.5 KiB
Markdown
50 lines
1.5 KiB
Markdown
---
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machine_translated: true
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machine_translated_rev: 72537a2d527c63c07aa5d2361a8829f3895cf2bd
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toc_priority: 20
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toc_title: "MySQL\u63A5\u53E3"
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---
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# MySQL接口 {#mysql-interface}
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ClickHouse支持MySQL线协议。 它可以通过启用 [mysql_port](../operations/server-configuration-parameters/settings.md#server_configuration_parameters-mysql_port) 在配置文件中设置:
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``` xml
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<mysql_port>9004</mysql_port>
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```
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使用命令行工具连接的示例 `mysql`:
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``` bash
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$ mysql --protocol tcp -u default -P 9004
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```
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如果连接成功，则输出:
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``` text
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Welcome to the MySQL monitor. Commands end with ; or \g.
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Your MySQL connection id is 4
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Server version: 20.2.1.1-ClickHouse
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Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
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Oracle is a registered trademark of Oracle Corporation and/or its
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affiliates. Other names may be trademarks of their respective
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owners.
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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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mysql>
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```
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为了与所有MySQL客户端兼容，建议使用以下命令指定用户密码 [双SHA1](../operations/settings/settings-users.md#password_double_sha1_hex) 在配置文件中。
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如果使用用户密码指定 [SHA256](../operations/settings/settings-users.md#password_sha256_hex)，一些客户端将无法进行身份验证（mysqljs和旧版本的命令行工具mysql）。
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限制:
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- 不支持准备好的查询
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- 某些数据类型以字符串形式发送
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[原始文章](https://clickhouse.tech/docs/en/interfaces/mysql/) <!--hide-->
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