alter table ProcessControl_InspectionManagement alter column AcceptanceCheckMan nvarchar(500)  null
GO
alter table sys_const alter Column ConstValue nvarchar(200)
GO
alter table Comprehensive_InspectionPerson alter column InspectionPersonCode nvarchar(100)  null
GO
alter table Comprehensive_InspectionMachine alter column InspectionMachineCode nvarchar(100)  null
GO