具有多个参数的动态SQL运算符IN

Question

我正在使用XML创建动态SQL查询。 我需要使用运算符IN，但不能使其与倍数值一起使用。

在这里说明我的事情是有效的：

        using System;
        using DocumentFormat.OpenXml.Packaging;
        using DocumentFormat.OpenXml.Wordprocessing;
        using DocumentFormat.OpenXml;
        using v = DocumentFormat.OpenXml.Vml;
        using ovml = DocumentFormat.OpenXml.Vml.Office;
        using System.IO;
        using System.Drawing;

        class Utility
        {
            public static void CreatePackage(string containingDocumentPath, string embeddedDocumentPath)
            {
                using (WordprocessingDocument package =
                  WordprocessingDocument.Create(containingDocumentPath,
                    WordprocessingDocumentType.Document))
                {
                    AddParts(package, embeddedDocumentPath);
                }
            }

            private static void AddParts(WordprocessingDocument parent,
              string embeddedDocumentPath)
            {
                var mainDocumentPart = parent.AddMainDocumentPart();
                GenerateMainDocumentPart().Save(mainDocumentPart);

                var embeddedPackagePart =
                  mainDocumentPart.AddNewPart<EmbeddedPackagePart>(
                  "application/vnd.openxmlformats-" +
                  "officedocument.spreadsheetml.sheet",
                  "rId1");

                GenerateEmbeddedPackagePart(embeddedPackagePart,
                  embeddedDocumentPath);

                var imagePart =
                  mainDocumentPart.AddNewPart<ImagePart>(
                  "image/x-emf", "rId2");

                GenerateImagePart(imagePart);
            }

            private static Document GenerateMainDocumentPart()
            {
                var element =
                  new Document(
                    new Body(
                      new Paragraph(
                        new Run(
                          new Text(
                            "This is the containing document."))),
                      new Paragraph(
                        new Run(
                          new Text(
                            "This is the embedded document: "))),
                      new Paragraph(
                        new Run(
                          new EmbeddedObject(
                            new v.Shape(
                              new v.ImageData()
                              {
                                  Title = "",
                                  RelationshipId = "rId2"
                              }
                            )
                            {
                                Id = "_x0000_i1025",
                                Style = "width:76.5pt;height:49.5pt",
                            },
                            new ovml.OleObject()
                            {
                                Type = ovml.OleValues.Embed,
                                ProgId = "Excel.Sheet.12",
                                ShapeId = "_x0000_i1025",
                                DrawAspect = ovml.OleDrawAspectValues.Icon,
                                ObjectId = "_1299573545",
                                Id = "rId1"
                            }
                          )
                        )
                      )
                    )
                  );

                return element;
            }

            public static void GenerateEmbeddedPackagePart(OpenXmlPart part,
              string embeddedDocumentPath)
            {
                byte[] embeddedDocumentBytes;

                // The following code will generate an exception if an invalid
                // filename is passed.
                using (FileStream fsEmbeddedDocument =
                  File.OpenRead(embeddedDocumentPath))
                {
                    embeddedDocumentBytes =
                      new byte[fsEmbeddedDocument.Length];

                    fsEmbeddedDocument.Read(embeddedDocumentBytes, 0,
                      embeddedDocumentBytes.Length);
                }

                using (BinaryWriter writer =
                  new BinaryWriter(part.GetStream()))
                {
                    writer.Write(embeddedDocumentBytes);
                    writer.Flush();
                }
            }

            public static void GenerateImagePart(OpenXmlPart part)
            {
                using (BinaryWriter writer = new BinaryWriter(part.GetStream()))
                {

                    writer.Write(System.Convert.FromBase64String(EmbedExcelIntoWordDoc.Properties.Resource1.BASE64_STRING_EXCEL_ICON));

                    writer.Flush();
                }
            }
        }

参数 @IncludedListB 在C＃中以字符串形式构建

exec sp_executesql N'SELECT * FROM commercial_element WHERE specific_info IN (@IncludedListB)
                ',N'@IncludedListB nvarchar(30)',@IncludedListB='BAR'

我想做的是在运算符IN中传递多个参数：

filter.IncludedListB = 'BAR';

像这样构建：

exec sp_executesql N'SELECT * FROM commercial_element WHERE specific_info IN (@IncludedListB)
                ',N'@IncludedListB nvarchar(30)',@IncludedListB='''BAR'',''BSO'''

仅关注SQL为什么第二个查询不起作用？我会为C＃弄清楚。