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文档Data Lake ComputeSQL StatementSuperSQL StatementUnified StatementDDL StatementALTER TABLEALTER TABLE DROP COLUMN

ALTER TABLE DROP COLUMN

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最后更新时间： 2024-08-07 17:15:45

Description

Supported engines: Presto and SparkSQL
Applicable table: Native Iceberg tables and external tables
Purpose: Delete a field from a data table.

Standard Statement

ALTER TABLE table_name DROP COLUMN column_name

Parameter

table_name: Name of the target table
column_name: Name of the column to be deleted

Example

ALTER TABLE `TBL` DROP COLUMN `COL2`



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