触发器

无奈，还是第一次写mssql的触发器，企业管理器直接有模板，不错，呵呵 放个demo供以后模仿： //新增时触发 CREATE TRIGGER [In_EgStock] ON [dbo].[est_outlist] after insert AS declare @New_Weight float select @New_Weight=weight from inserted UPDATE P SET p.isSaleLock = 1 , p.salelockweight = isnull(p.salelockweight,0) +@New_Weight FROM eg_stock P,est_outlist G where G.stockid=p.stockid //更新时触发 CREATE TRIGGER [Up_EgStock] ON [dbo].[est_outlist] after UPDATE AS declare @Old_weight float declare @New_Weight float declare @isdel int select @isdel=isdel from inserted select @Old_weight=weight from deleted select @New_Weight=weight from inserted if update(weight) begin UPDATE P SET p.isSaleLock = 1 , p.salelockweight = isnull(p.salelockweight,0) + (@New_Weight- @Old_weight) FROM eg_stock P,est_outlist G where G.stockid=p.stockid and G.isdel<>1 UPDATE P SET p.isSaleLock = 0 FROM eg_stock P,est_outlist G where G.stockid=p.stockid and p.salelockweight=0 end else if update(isdel) begin if @isdel=1 begin UPDATE P SET p.salelockweight = isnull(p.salelockweight,0) - @New_Weight FROM eg_stock P,est_outlist G where G.stockid=p.stockid end else if @isdel=0 begin UPDATE P SET p.salelockweight = isnull(p.salelockweight,0) +@New_Weight FROM eg_stock P,est_outlist G where G.stockid=p.stockid end end