OrderBy排序1,2,0,0,0,0

Posted 2020-06-26 鞍山老菜鸟

OrderBy排序1,2,0,0,0,0

lambda表达式排序
var sql_BusinessInformation = db.BusinessInformation
                                  .OrderBy(d => d.sort == 0 ? int.MaxValue : d.sort).ThenByDescending(d => d.createtime)

生成的sql语句

.OrderBy(d => d.sort == 0 ? int.MaxValue : d.sort) 
转意为:

CASE WHEN (0 = [Extent1].[sort]) THEN 2147483647 ELSE [Extent1].[sort] END AS [C1]

SELECT 
    c1,
    [Project1].[id] AS [id], 
    [Project1].[sort] AS [sort], 
    [Project1].[createtime] AS [createtime]
    FROM ( SELECT 
        CASE WHEN (0 = [Extent1].[sort]) THEN 2147483647 ELSE [Extent1].[sort] END AS [C1], 
        [Extent1].[id] AS [id], 
        [Extent1].[createtime] AS [createtime]
        FROM [dbo].[BusinessInformation] AS [Extent1]
        WHERE 0 = [Extent1].[isExamine]
    )  AS [Project1]
    ORDER BY [Project1].[C1] ASC, [Project1].[createtime] DESC