关于sql server批量插入和更新的两种解决方案

.游标方式 1 DECLARE @Data NVARCHAR(max)
 SET @Data='1,tanw;2,keenboy'   --Id,Name

 DECLARE @dataItem NVARCHAR(100)
 DECLARE data_cursor CURSOR FOR (SELECT * FROM split(@Data,';'))
 OPEN data_cursor
 FETCH NEXT FROM data_cursor INTO @dataItem   
 WHILE @@FETCH_STATUS=0
 BEGIN
 DECLARE @Id INT
 DECLARE @Name NVARCHAR(50)

 DECLARE dataItem_cursor CURSOR FOR (SELECT * FROM split(@dataItem,','))
 OPEN dataItem_cursor   
 FETCH NEXT FROM dataItem_cursor INTO @Id
 FETCH NEXT FROM dataItem_cursor INTO @Name
 CLOSE dataItem_cursor
 DEALLOCATE dataItem_cursor

 /*
   在这里做逻辑处理，插入或更新操作 ...
 */
 END

 CLOSE data_cursor
 DEALLOCATE data_cursor

.While方式
 DECLARE @Data NVARCHAR(max)
 SET @Data='tanw,keenboy'   --Id,Name

 DECLARE @Temp TABLE
 (
    Id INT IDENTITY(1,1),
    Name  NVARCHAR(50)
 )
 DECLARE @Id INT
 DECLARE @Name NVARCHAR(50)
 DECLARE @Results NVARCHAR(MAX) SET @Results=''
 INSERT INTO @Temp SELECT (SELECT * FROM split(@Data,';'))

 WHILE EXISTS(SELECT * FROM @Temp)
 BEGIN
     SELECT TOP 1 @Id=Id,@Name=Name from @Temp
     DELETE FROM @Temp where [id] = @Id
     SET @Results=@Results+@Name+','

     /*

         在这里做逻辑处理，插入或更新操作 ...

     */
 END
 SELECT @Results