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EXPORT DATABASE CONFIGURATION

描述

EXPORT DATABASE CONFIGURATION 语法用于将逻辑库中的存储单元和规则配置导出为 YAML 格式。

语法

ExportDatabaseConfiguration ::=
  'EXPORT' 'DATABASE' 'CONFIGURATION' ('FROM' databaseName)? ('TO' 'FILE' filePath)?

databaseName ::=
  identifier

filePath ::=
  string

补充说明

  • 未指定 databaseName 时，导出当前使用的逻辑库；如果也未使用逻辑库则提示 No database selected；
  • 未指定 filePath 时，会将导出的信息通过结果集输出；
  • 指定 filePath 时，会自动创建文件，若文件已存在，会被覆盖。

示例

  • 导出当前逻辑库的配置信息
mysql> EXPORT DATABASE CONFIGURATION;
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| result                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| databaseName: sharding_db
dataSources:
  ds_1:
    password: 123456
    url: jdbc:mysql://127.0.0.1:3306/db0
    username: root
    minPoolSize: 1
    connectionTimeoutMilliseconds: 30000
    maxLifetimeMilliseconds: 2100000
    readOnly: false
    idleTimeoutMilliseconds: 60000
    maxPoolSize: 50
  ds_2:
    password: 123456
    url: jdbc:mysql://127.0.0.1:3306/db1
    username: root
    minPoolSize: 1
    connectionTimeoutMilliseconds: 30000
    maxLifetimeMilliseconds: 2100000
    readOnly: false
    idleTimeoutMilliseconds: 60000
    maxPoolSize: 50
rules:
 |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.01 sec)
  • 导出指定逻辑库的配置信息，并输出到文件
mysql> EXPORT DATABASE CONFIGURATION FROM sharding_db TO FILE '/xxx/config_sharding_db.yaml';
+-------------------------------------------------------------------------+
| result                                                                  |
+-------------------------------------------------------------------------+
| Successfully exported to: '/xxx/config_sharding_db.yaml'  |
+-------------------------------------------------------------------------+
1 row in set (0.02 sec)

保留字

EXPORT、DATABASE、CONFIGURATION、FROM、TO、FILE

相关链接