ALTER TABLE Base_Certificate ADD  Type VARCHAR(10) NULL
GO
EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'类型（1特岗；2安管；3特种设备；-1其他）' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'Base_Certificate', @level2type=N'COLUMN',@level2name=N'Type'
GO