SqlServer增加字段及字段描述信息SQL脚本

-- 代开药信息 
alter table MI_Register add
  HelpMedicineFlag smallint DEFAULT (0),
  HelpMedicineName varchar(50) null,
  IDType varchar(10) null,
  HelpMedicineIDNO varchar(18) null
go

IF ((SELECT COUNT(*) from fn_listextendedproperty('MS_Description', 
'SCHEMA', N'dbo', 
'TABLE', N'MI_Register', 
'COLUMN', N'HelpMedicineFlag')) > 0) 
EXEC sp_updateextendedproperty @name = N'MS_Description', @value = N'代开药标识：0非代开药处方；1代开药处方'
, @level0type = 'SCHEMA', @level0name = N'dbo'
, @level1type = 'TABLE', @level1name = N'MI_Register'
, @level2type = 'COLUMN', @level2name = N'HelpMedicineFlag'
ELSE
EXEC sp_addextendedproperty @name = N'MS_Description', @value = N'代开药标识：0非代开药处方；1代开药处方'
, @level0type = 'SCHEMA', @level0name = N'dbo'
, @level1type = 'TABLE', @level1name = N'MI_Register'
, @level2type = 'COLUMN', @level2name = N'HelpMedicineFlag'
GO

IF ((SELECT COUNT(*) from fn_listextendedproperty('MS_Description', 
'SCHEMA', N'dbo', 
'TABLE', N'MI_Register', 
'COLUMN', N'HelpMedicineName')) > 0) 
EXEC sp_updateextendedproperty @name = N'MS_Description', @value = N'代开药人员姓名'
, @level0type = 'SCHEMA', @level0name = N'dbo'
, @level1type = 'TABLE', @level1name = N'MI_Register'
, @level2type = 'COLUMN', @level2name = N'HelpMedicineName'
ELSE
EXEC sp_addextendedproperty @name = N'MS_Description', @value = N'代开药人员姓名'
, @level0type = 'SCHEMA', @level0name = N'dbo'
, @level1type = 'TABLE', @level1name = N'MI_Register'
, @level2type = 'COLUMN', @level2name = N'HelpMedicineName'
GO

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