Help Center> MapReduce Service> User Guide (Kuala Lumpur Region)> MRS Cluster Component Operation Gudie> Using CarbonData (for MRS 3.x or Later)> CarbonData Syntax Reference> DDL> TABLE RENAME
Updated on 2022-08-12 GMT+08:00
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TABLE RENAME

Function

This command is used to rename an existing table.

Syntax

ALTER TABLE [db_name.]table_name RENAME TO new_table_name;

Parameter Description

Table 1 RENAME parameters

Parameter

Description

db_name

Database name. If this parameter is not specified, the current database is selected.

table_name

Current name of the existing table

new_table_name

New name of the existing table

Precautions

  • Parallel queries (using table names to obtain paths for reading CarbonData storage files) may fail during this operation.
  • The secondary index table cannot be renamed.

Example

ALTER TABLE carbon RENAME TO carbondata;

ALTER TABLE test_db.carbon RENAME TO test_db.carbondata;

System Response

The new table name will be displayed in the CarbonData folder. You can run SHOW TABLES to view the new table name.

Parent topic: DDL