13 May 2018        Add to Favorites   Report

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

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