Question

这是我的查询

SELECT COUNT(MPRO.OriDes0154) 'QueueCalls' FROM MMProdat.dbo.InstTaWf0154 MPRO WITH(NOLOCK) 
WHERE MPRO.Estado0154 = 'QUEUED' 
AND F1IdWI02140154<>'VOICEMAIL'
AND F1Camp02930154 = 'Support'

请注意我有AND F1Camp02930154 = 'Support'

现在我有一个这样的列表：

List<string> compaines = new List<string>();

此列表中的值应位于此条件AND F1Camp02930154 = 'Support'

中

例如，如果列表为空，我将得到一个空结果，但如果列表只有一个Support的值，则查询将

AND F1Camp02930154 = 'Support'

但是如果列表有两个Support and Sales的值，那么查询将是

AND F1Camp02930154 = 'Support' and `Sales`

如何做到这一点请在c＃

我已经有了这个：

string queryString = "SELECT COUNT(MPRO.OriDes0154) 'QueueCalls' FROM MMProdat.dbo.InstTaWf0154 MPRO WITH(NOLOCK) WHERE MPRO.Estado0154 = 'QUEUED' AND F1IdWI02140154<>'VOICEMAIL'";

更新1

@ Gordon Linoff评论后

我试过了：

List<string> compaines = new List<string>();
            string queryString = "SELECT COUNT(MPRO.OriDes0154) 'QueueCalls' FROM MMProdat.dbo.InstTaWf0154 MPRO WITH(NOLOCK) WHERE MPRO.Estado0154 = 'QUEUED' AND F1IdWI02140154<>'VOICEMAIL' AND F1Camp02930154 IN (";
            for (int i = 0; i < compaines.Count(); i++) {
                queryString += "'" + compaines[i] + "'";
            }
            queryString += ")";

Answer 1

您可以使用String.Join()构建IN ()子句，例如：

var companies = new List<string>() { "Support", "Sales" };
string inClause = String.Format(" IN ('{0}')", String.Join("', '", companies));
Console.WriteLine("AND F1Camp02930154" + inClause);
//output :
//AND F1Camp02930154 IN ('Support', 'Sales')

c＃如何在where条件中构建动态查询

更新1

1 个答案: