transitPlatForm/sql/transit/updatedb_transit.sql

if not exists(SELECT 1 FROM INFORMATION_SCHEMA.COLUMNS  WHERE TABLE_NAME = 'reg_TransitSample' AND COLUMN_NAME = 'operdatetime')
    begin
        alter table dbo.reg_TransitSample add operdatetime datetime
    end

if not exists(SELECT 1 FROM INFORMATION_SCHEMA.COLUMNS  WHERE TABLE_NAME = 'reg_TransitSample' AND COLUMN_NAME = 'opercode')
    begin
        alter table dbo.reg_TransitSample add opercode varchar(20)
    end

if not exists(SELECT 1 FROM INFORMATION_SCHEMA.COLUMNS  WHERE TABLE_NAME = 'reg_TransitSample' AND COLUMN_NAME = 'opername')
    begin
        alter table dbo.reg_TransitSample add opername varchar(50)
    end