How to set a default value for an existing column

2018-06-08 03:18:50

This isn't working in SQL Server 2008:

ALTER TABLE Employee ALTER COLUMN CityBorn SET DEFAULT 'SANDNES'

The error is:

Incorrect syntax near the keyword 'SET'.

What am I doing wrong?

这将在SQL Server中工作：

ALTER TABLE Employee ADD CONSTRAINT DF_SomeName DEFAULT N'SANDNES' FOR CityBorn;

ALTER TABLE Employee ADD DEFAULT 'SANDNES' FOR CityBorn

不能使用alter列，而是使用add

ALTER TABLE Employee 
ADD DEFAULT('SANDNES') FOR CityBorn

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