Syntax documentationcolumn_change_definition Locate this document in the navigation structure

Syntax Syntax

  1. <column_change_definition> ::=
      COLUMN <column_name> ADD <default_spec>
    | COLUMN <column_name> ALTER <default_spec>
    | COLUMN <column_name> DEFAULT NULL
    | COLUMN <column_name> DROP DEFAULT
    | COLUMN <column_name> NOT NULL
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