is the default value to be assigned to the column. See "Column Definition for Remote Tables" for details.
starting_value
is the starting value for the Identity column. The default start value is 0.
Notes
If NOT NULL is specified and the table is not empty, a default value must be specified. In all other respects, this command is the equivalent of a column definition in a Create Table statement.
You cannot specify ANYTYPE, BINARY, COMBOBOX, or TIME data types in the column definition of Alter Table statements.
If a SQL view includes SELECT * FROM for the table to which the column was added in the view’s Select statement, the new column is added to the view.
Example A
Assuming the current schema is SFORCE, this example adds the status column with a default value of ACTIVE to the test table.
ALTER TABLE test ADD COLUMN status TEXT(30) DEFAULT 'ACTIVE'
Example B
Assuming the current schema is SFORCE, this example adds a deptId column that can be used as a foreign key column.
If NOT NULL is specified and the table is not empty, a default value must be specified. In all other respects, this command is the equivalent of a column definition in a Create Table statement.