1.迁移数据
进行数据库移植，SQL Server=>MySQL。SQL Server上有如下的Trigger
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
ALTER TRIGGER [trg_risks] ON dbo.projectrisk
FOR INSERT, UPDATE
AS
BEGIN
UPDATE projectrisk
SET classification =
case
when calc>= 9 then 3
when calc <9>=4 then 2
when calc <
