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Refresh Database Metadata.En

docs/document/content/user-manual/shardingsphere-proxy/distsql/syntax/ral/refresh-database-metadata.en.md

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+++ title = "REFRESH DATABASE METADATA FROM GOVERNANCE CENTER" weight = 10 +++

Description

The REFRESH DATABASE METADATA syntax is used to refresh the metadata of the local logic database.

Syntax

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sql
RefreshDatabaseMetadata ::=
  'FORCE'? 'REFRESH' 'DATABASE' 'METADATA' databaseName?

databaseName ::=
  identifier

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Supplement

  • When databaseName is not specified, the default is to refresh all database metadata.

  • When using FORCE to refresh metadata, the latest metadata will be obtained locally and written to the governance center. If without FORCE, it will be pulled from the governance center.

Example

  • Refresh metadata for specified database
sql
REFRESH DATABASE METADATA sharding_db;
  • Refresh all database metadata
sql
REFRESH DATABASE METADATA;
  • Force refresh all database metadata
sql
FORCE REFRESH DATABASE METADATA;

Reserved word

FORCE, REFRESH, DATABASE, METADATA