EXPORT DATABASE CONFIGURATION

描述

EXPORT DATABASE CONFIGURATION 语法用于将 database 中的存储单元和规则配置导出为 YAML 格式

语法

语法 铁路图

  1. ExportDatabaseConfiguration ::=
  2.   'EXPORT' 'DATABASE' 'CONFIGURATION' ('FROM' databaseName)? ('TO' 'FILE' filePath)?
  4. databaseName ::=
  5.   identifier
  7. filePath ::=
  8.   string

补充说明

  • 未指定 databaseName 时，默认是当前使用的 DATABASE。 如果也未使用 DATABASE 则会提示 No database selected。

  • 未指定 filePath 时，会将存储单元和规则配置导出至屏幕。

示例

  • 导出指定逻辑库的存储单元和规则配置到指定路径
  1. EXPORT DATABASE CONFIGURATION FROM sharding_db TO FILE "/xxx/config_sharding_db.yaml";
  • 导出指定逻辑库的存储单元和规则配置到屏幕
  1. EXPORT DATABASE CONFIGURATION FROM sharding_db;
  1. mysql> EXPORT DATABASE CONFIGURATION FROM sharding_db;
  2. +-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  3. | result                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
  4. +-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  5. | databaseName: sharding_db
  6. dataSources:
  7.   ds_1:
  8.     password: 123456
  9.     url: jdbc:mysql://127.0.0.1:3306/migration_ds_0
  10.     username: root
  11.     minPoolSize: 1
  12.     connectionTimeoutMilliseconds: 30000
  13.     maxLifetimeMilliseconds: 2100000
  14.     readOnly: false
  15.     idleTimeoutMilliseconds: 60000
  16.     maxPoolSize: 50
  17.   ds_2:
  18.     password: 123456
  19.     url: jdbc:mysql://127.0.0.1:3306/db1
  20.     username: root
  21.     minPoolSize: 1
  22.     connectionTimeoutMilliseconds: 30000
  23.     maxLifetimeMilliseconds: 2100000
  24.     readOnly: false
  25.     idleTimeoutMilliseconds: 60000
  26.     maxPoolSize: 50
  27. rules:
  28.  |
  29. +-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  30. 1 row in set (0.00 sec)
  • 导出当前逻辑库的存储单元和规则配置到指定路径
  1. EXPORT DATABASE CONFIGURATION TO FILE "/xxx/config_sharding_db.yaml";
  • 导出当前逻辑库的存储单元和规则配置到屏幕
  1. EXPORT DATABASE CONFIGURATION;
  1. mysql> EXPORT DATABASE CONFIGURATION;
  2. +-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  3. | result                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
  4. +-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  5. | databaseName: sharding_db
  6. dataSources:
  7.   ds_1:
  8.     password: 123456
  9.     url: jdbc:mysql://127.0.0.1:3306/migration_ds_0
  10.     username: root
  11.     minPoolSize: 1
  12.     connectionTimeoutMilliseconds: 30000
  13.     maxLifetimeMilliseconds: 2100000
  14.     readOnly: false
  15.     idleTimeoutMilliseconds: 60000
  16.     maxPoolSize: 50
  17.   ds_2:
  18.     password: 123456
  19.     url: jdbc:mysql://127.0.0.1:3306/db1
  20.     username: root
  21.     minPoolSize: 1
  22.     connectionTimeoutMilliseconds: 30000
  23.     maxLifetimeMilliseconds: 2100000
  24.     readOnly: false
  25.     idleTimeoutMilliseconds: 60000
  26.     maxPoolSize: 50
  27. rules:
  28.  |
  29. +-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  30. 1 row in set (0.00 sec)

保留字

EXPORT、DATABASE、CONFIGURATION、FROM、TO、FILE

相关链接