sql里修改表字段的sql脚本

红色字体时表明，蓝色字体时列名

--添加列

ALTER TABLE Ba_CustomerLinkmanAddress ADD CarryCategory int

GO
EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'配送方式(int)：1=快递，2=司机配送，3=客户自提，4=业务员送，5=无需配送。
* 送货路线(int)：当“配送方式=司机配送”时，CarryLineId必填，否则为null。' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'Ba_CustomerLinkmanAddress', @level2type=N'COLUMN',@level2name=N'CarryCategory'
GO

--修改列

alter table Ba_CustomerCompany alter column InvoiceDemand varchar(400)

GO
EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'字段修改成400' , @level0type=N'SCHEMA',@level0name=N'dbo',
@level1type=N'TABLE',@level1name=N'Ba_CustomerCompany ', @level2type=N'COLUMN',@level2name=N'InvoiceDemand '
GO