如何在C#中用Linq编写跟随查询?
SELECT MAX(A2.LINHA_PLANILHA)
FROM MD_IMP_FORCA_VENDA_DADOS_A2 A2
WHERE A2.LINHA <> '0'
AND TRIM(A2.SETORES) IS NOT NULL
AND A2.LINHA_PLANILHA <> 1
AND USUARIO = V_USUARIO
GROUP BY A2.LINHA, A2.BRICK
HAVING COUNT(A2.BRICK) > 1 AND COUNT(DISTINCT A2.SETORES) > 1;
我想这样做:
var result = from r in dataTable.AsEnumerable()
where r.Field<string>(1) != "0"
&& r.Field<string>(2).Trim() != null
&& r.Field<Int32>(0) != 1
group r by new {Linha = r.Field<string>(1), Brick = r.Field<string>(3) } into temp
where temp.Count() > 1
select new { MaxLinha = (from r2 in temp select r2.Field<Int32>(0)).Max()};
但我不知道如何在Linq查询中放置两个COUNTS of HAVING子句。
任何帮助都将不胜感激。
由于
扎戈
答案 0 :(得分:1)
也许:
var query = db.MD_IMP_FORCA_VENDA_DADOS_A2
.Where(x => x.LINHA != "0"
&& x.SETORES != null
&& x.SETORES.Trim() != ""
&& x.LINHA_PLANILHA <> 1
&& x.USUARIO = x.V_USUARIO
)
.GroupBy(x => new { x.LINHA, x.BRICK })
.Where(g => g.Count() > 1 && g.Select(x => x.SETORES).Distinct().Count() > 1)
.Select(g => g.Max(x => x.LINHA_PLANILHA));