DROP COLUMN
DROP COLUMN can be used to remove columns from a table.
Syntax
ALTER TABLE [schema_name.]table_name DROP COLUMN column_name
schema_name ::= identifier
table_name ::= identifier
column_name ::= identifier
Parameters
Parameter  | 
Description  | 
|---|---|
  | 
The schema name for the table. Defaults to   | 
  | 
The table name to apply the change to  | 
  | 
The column to remove  | 
Examples
Removing a Column
ALTER TABLE
  users DROP COLUMN weight;
Removing a Column with a Quoted Identifier Name
ALTER TABLE
  users DROP COLUMN "Weight in kilograms";
Permissions
The role must have the DDL permission at the database or table level.