Drop a column from a table in Teradata

To remove a column from a teradata table:

Syntax:

ALTER TABLE table_name DROP column_name;

Example:

ALTER TABLE db.emp DROP Salary;

Limitations:

• You cannot drop all of the columns from a table.
  
• When you drop a column, Teradata Database deletes the field corresponding to the dropped column in every row in the table.
  
• You cannot drop indexed columns from a table without first dropping the index on those columns
  

nVector

posted on 13 May 18