我收到错误消息“关键字UNION附近的语法错误。
目标网站是 -
Void ProcessResults(System.Data.OleDb.OleDbHResult)
，堆栈跟踪如下： -
System.Data.OleDb.OleDbDataReader.ProcessResults（OleDbHResult hr）位于System.Data.OleDb.OleDbDataReader.NextResult（）处于System.Data的System.Data.OleDb.OleDbCommand.ExecuteReaderInternal（CommandBehavior behavior，String method） System.Data.Common.DbDataAdapter.FillInternal（DataSet数据集，DataTable [] datatables，Int32中System.Data.OleDb.OleDbCommand.System.Data.IDbCommand.ExecuteReader（CommandBehavior行为）的.OleDb.OleDbCommand.ExecuteReader（CommandBehavior行为） System.Data.Common上的System.Data.Common.DbDataAdapter.Fill（DataSet dataSet，Int32 startRecord，Int32 maxRecords，String srcTable，IDbCommand命令，CommandBehavior行为）中的startRecord，Int32 maxRecords，String srcTable，IDbCommand命令，CommandBehavior行为。 MFActivityPlanning.NewStuffS.PopulateNewStuffsDataGrid（）
中的DbDataAdapter.Fill（DataSet dataSet）
查询如下：
strSelectQuery = "SELECT LED_ID AS PK_ID, FIRST_NAME + ' ' + LAST_NAME AS NAME"
+ " FROM M_LEADERLED INNER JOIN M_USER_DETAILS"
+ " ON M_LEADERLED.LED_ID = M_USER_DETAILS.PK_ID"
+ " WHERE (M_LEADERLED.LEADER_ID = " + Session["UserID"].ToString() + ""
+ " AND M_USER_DETAILS.ACTIVE = 1 AND M_LEADERLED.START_DATE <= Getdate()"
+ " AND M_LEADERLED.END_DATE > Getdate())"
+ " UNION SELECT PK_ID, FIRST_NAME + ' ' + LAST_NAME AS NAME"
+ " FROM M_USER_DETAILS WHERE PK_ID = " + Session["UserID"].ToString() + ";";
// Query for Idea
string selectIdea = "SELECT MWL.PK_ID AS PK_ID, 'Idea'+ ': ' + MI.TITLE AS TITLE,"
+ " 'Idea.aspx?id=' + CONVERT(VARCHAR, MI.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_IDEAS MI ON MWL.FK_OBJECT_ID = MI.PK_ID"
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.Idea) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1";
// Query for Articles
string selectArticle = "SELECT MWL.PK_ID AS PK_ID, 'Articles' + ': ' + MA.TITLE AS TITLE,"
+ " 'Articles.aspx?id=' + CONVERT(VARCHAR, MA.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_ARTICLES MA ON MWL.FK_OBJECT_ID = MA.PK_ID"
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.Article) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1 AND MA.IS_ACTIVE = 1";
// Query for Tips
string selectTips = "SELECT MWL.PK_ID AS PK_ID, 'Tips' + ': ' + MT.TITLE AS TITLE,"
+ " 'Tips.aspx?id=' + CONVERT(VARCHAR, MT.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_TIPS MT ON MWL.FK_OBJECT_ID = MT.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.Tip) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1 AND MT.IS_ACTIVE = 1";
// Query for IWantINeed
string selectIWantINeed = "SELECT MWL.PK_ID AS PK_ID, 'IWantINeed' + ': ' + MWN.TITLE AS TITLE,"
+ " 'IWantINeed.aspx?id=' + CONVERT(VARCHAR, MWN.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_I_WANT_I_NEED MWN ON MWL.FK_OBJECT_ID = MWN.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.IWantINeed) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1";
// Query for PointCAT
string selectPointCAT = "SELECT MWL.PK_ID AS PK_ID, 'PointCAT' + ': ' + MPS.TITLE AS TITLE,"
+ " 'PointCAT.aspx?id=' + CONVERT(VARCHAR, MPS.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_POINTCAT_SESSIONS MPS ON MWL.FK_OBJECT_ID = MPS.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.PointCAT) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1 AND MPS.IS_ACTIVE = 1";
// Query for Seminar
string selectSeminar = "SELECT MWL.PK_ID AS PK_ID, 'Seminar' + ': ' + MS.TITLE AS TITLE,"
+ " 'Seminar.aspx?id=' + CONVERT(VARCHAR, MS.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_SEMINAR MS ON MWL.FK_OBJECT_ID = MS.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.Seminar) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1 AND MS.IS_ACTIVE = 1";
// Query for CodeCAT
string selectCodeCAT = "SELECT DISTINCT MWL.PK_ID AS PK_ID, 'Code Review Feedback:"
+ " ' + MUD1.FIRST_NAME + ' ' + MUD1.LAST_NAME AS TITLE,"
+ " 'CodeCatFeedback.aspx?id=' + CONVERT(VARCHAR, MCS.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_CODECAT_SESSIONS MCS ON MWL.FK_OBJECT_ID = MCS.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " INNER JOIN M_USER_DETAILS MUD1 ON MUD1.PK_ID = MCS.REVIEW_MEMBER"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.CodeCatFeedback) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1 AND MCS.ACTIVE = 1";
// Query for NowShowing
string selectNowShowing = "SELECT MWL.PK_ID AS PK_ID, 'NowShowing' + ': ' + MNS.TITLE AS TITLE,"
+ " 'NowShowing.aspx?id=' + CONVERT(VARCHAR, MNS.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_NOW_SHOWING MNS ON MWL.FK_OBJECT_ID = MNS.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.NowShowing) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1 AND MNS.IS_ACTIVE = 1";
// Query for QA
string selectQA = "SELECT MWL.PK_ID AS PK_ID, 'Q&A' + ': ' + MQ.TITLE AS TITLE,"
+ " 'QA.aspx?id=' + CONVERT(VARCHAR, MQ.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_QA MQ ON MWL.FK_OBJECT_ID = MQ.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.QA) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1 AND MQ.IS_ACTIVE = 1";
// Query for Message
string selectMessage = "SELECT MWL.PK_ID AS PK_ID, 'Message' + ': ' + MS.SUBJECT AS TITLE,"
+ " 'Message.aspx?id=' + CONVERT(VARCHAR, MS.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_MESSAGE MS ON MWL.FK_OBJECT_ID = MS.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.Message) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1 AND MS.IS_ACTIVE = 1";
// Query for Documents
string selectDocuments = "SELECT MWL.PK_ID AS PK_ID, 'Documents' + ': ' + MSV.TITLE AS TITLE,"
+ " 'Document.aspx?id=' + CONVERT(VARCHAR, MSD.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_SHARE_DOCUMENT MSD ON MWL.FK_OBJECT_ID = MSD.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " INNER JOIN M_SHARE_DOC_VERSION MSV ON MSV.FK_DOC_ID = MSD.PK_ID AND MSV.IS_ACTIVE =1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.Document) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1 AND MSD.IS_ACTIVE = 1";
// Query for Candidate
string selectCandidate = "SELECT MWL.PK_ID AS PK_ID, 'Candidate' + ': ' + MC.CAND_NAME AS TITLE,"
+ " 'Candidates.aspx?id=' + CONVERT(VARCHAR, MC.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_CANDIDATE MC ON MWL.FK_OBJECT_ID = MC.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.Candidate) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1";
// Query for Prospect
string selectProspect = "SELECT MWL.PK_ID AS PK_ID, 'Prospect' + ': ' + MP.PROSPECT_NAME AS TITLE,"
+ " 'Prospect2.aspx?id=' + CONVERT(VARCHAR, MP.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_PROSPECT MP ON MWL.FK_OBJECT_ID = MP.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.Prospect) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1";
// Query for ToolCAT
string selectToolCAT = "SELECT MWL.PK_ID AS PK_ID, 'ToolCAT' + ': ' + MT.TOOL_NAME AS TITLE,"
+ " 'Catalyst/ToolCAT.aspx?id=' + CONVERT(VARCHAR, MT.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN M_TOOLCAT MT ON MWL.FK_OBJECT_ID = MT.PK_ID "
+ " INNER JOIN M_USER_DETAILS MUD ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = " + Convert.ToInt32(WatchType.ToolCAT) + ""
+ " AND MWL.FK_USER_ID = " + userId + " AND MWL.IS_ACTIVE = 1 AND MT.IS_ACTIVE = 1";
string selectLearningMatter = "SELECT DISTINCT MWL.PK_ID AS PK_ID, 'Learning Matter: ' + KMLM.TITLE AS TITLE,"
+ " 'KLMS/LearningMatterView.aspx?id=' + CONVERT(VARCHAR, KMLM.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN KLMS_M_LEARNING_MATTER KMLM"
+ " ON MWL.FK_OBJECT_ID = KMLM.PK_ID INNER JOIN M_USER_DETAILS MUD"
+ " ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = 505 AND MWL.FK_USER_ID = " + userId + " AND"
+ " MWL.IS_ACTIVE = 1 AND KMLM.IS_ACTIVE = 1";
// Query for Questions
string selectQuestions = "SELECT DISTINCT MWL.PK_ID AS PK_ID, 'Questions: ' + CONVERT(VARCHAR(400),"
+ " [QUESTION]) AS [TITLE],"
+ " 'KLMS/Question.aspx?id=' + CONVERT(VARCHAR, KMQ.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN KLMS_M_QUESTIONS KMQ"
+ " ON MWL.FK_OBJECT_ID = KMQ.PK_ID INNER JOIN M_USER_DETAILS MUD"
+ " ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = 510 AND MWL.FK_USER_ID = " + userId + " AND"
+ " MWL.IS_ACTIVE = 1 AND KMQ.IS_ACTIVE = 1";
// Query for Test
string selectTest = "SELECT DISTINCT MWL.PK_ID AS PK_ID, 'Tests: ' + KMT.TITLE AS TITLE,"
+ " 'KLMS/Test.aspx?id=' + CONVERT(VARCHAR, KMT.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN KLMS_M_TESTS KMT"
+ " ON MWL.FK_OBJECT_ID = KMT.PK_ID INNER JOIN M_USER_DETAILS MUD"
+ " ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = 515 AND MWL.FK_USER_ID = " + userId + " AND"
+ " MWL.IS_ACTIVE = 1 AND KMT.IS_ACTIVE = 1";
// Query for Course
string selectCourse = "SELECT DISTINCT MWL.PK_ID AS PK_ID, 'Courses: ' + KMC.TITLE AS TITLE,"
+ " 'KLMS/Course.aspx?id=' + CONVERT(VARCHAR, KMC.PK_ID) AS OBJECTURL"
+ " FROM M_WATCHLIST MWL INNER JOIN KLMS_M_COURSES KMC"
+ " ON MWL.FK_OBJECT_ID = KMC.PK_ID INNER JOIN M_USER_DETAILS MUD"
+ " ON MUD.PK_ID = MWL.FK_USER_ID AND MUD.ACTIVE = 1"
+ " WHERE MWL.OBJECT_TYPE = 500 AND MWL.FK_USER_ID = " + userId + " AND"
+ " MWL.IS_ACTIVE = 1 AND KMC.IS_ACTIVE = 1";
//************************************************************************************************
string orderQuery = " ORDER BY " + GridViewSortExpression + " " + GridViewSortDirection;
//For All
if (ddlTypes.SelectedValue == "10")
{
selectStatement = selectArticle + " UNION " + selectTips + " UNION " + selectIdea
+ " UNION " + selectIWantINeed + " UNION " + selectPointCAT + " UNION " + selectSeminar
+ " UNION " + selectCodeCAT + " UNION " + selectNowShowing + " UNION " + selectQA
+ " UNION " + selectMessage + " UNION " + selectDocuments + " UNION " + selectCandidate
+ " UNION " + selectProspect + " UNION " + selectToolCAT;
任何人都可以帮助我....
答案 0 :(得分：0)
相当大的查询。我会在if和watch selectStatement内添加breakpoint（F9）;从那里复制查询并进入我的sql编辑器，然后从那里运行/修复它。
您似乎在UNION语句中缺少一些空格或列。