从报表中的两个表查询

Question

我的 VB 应用程序通过 ODBC 打印报告。我使用数据库专家添加了表格并设计了水晶报表。我应该把我的查询放在哪里？ 这是我的查询

SELECT ts.`SCHEDIDNO`,
       ts.`DAYNAME`,
       DATE_FORMAT(ts.`TIMESTART`, '%h:%i %p') as TIMESTART,
       DATE_FORMAT(ts.`TIMEEND`, '%h:%i %p') as TIMEEND,
       ts.`GRADELEVEL`,
       ts.`SECTIONNAME`,
       ts.`SUBJECTNAME`,
       ts.`FACFULLNAME`,
       ts.`ROOMNAME`,
       tf.`FACFULLNAME` as PERSONNEL,
       tf.`DEPARTMENT`,
       tse.`Adviser`
FROM `tblschedule` ts,
     `tblfaculty` tf,
      `tblsection` tse
WHERE ts.`GRADELEVEL` = " & lblgrade.Text & "
    AND ts.`SECTIONNAME` = '" & lblsect.Text & "'
    AND ts.`DEPARTMENTNAME` = tf.`DEPARTMENT`
    AND tf.`ADMINISTRATOR` = 1
    AND tse.`SECTIONNAME` = '" & lblsect.Text & "'

Answer 1

在 Crystal 报表向导中，找到使用用户名和密码创建的 odbc。

然后你会看到一个命令文本，你可以把你的查询放在那里。

VB.NET 的代码

 Private CRPT As New ReportDocument
    Private APPPATH As String
    Private PARAM As New ParameterFields
    Public PARAM_DESC As New ParameterDiscreteValue
    Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load

        APPPATH = Application.StartupPath & "\REPORT\sample.rpt"
        CRPT.Load(APPPATH)
        Me.CrystalReportViewer1.ReportSource = CRPT

        PARAM = CRPT.ParameterFields

        PARAM_DESC.Value = Format(DatePicker1.Value, "yyyyMMdd")
        PARAM("DATEP").CurrentValues.Clear()
        PARAM("DATEP").CurrentValues.Add(PARAM_DESC)
        Me.CrystalReportViewer1.Refresh()
    End Sub

此代码适用于 C#：

CRPT = new ReportDocument();
            APPPATH = Environment.CurrentDirectory + "Sample.rpt";
            CRPT.Load(APPPATH);
            Report_Viewer.Refresh();
            CRPT.SetParameterValue("syear", Servercls.year);


            CRPT.SetParameterValue("smonth", Servercls.month);
            CRPT.SetParameterValue("sday", Servercls.day);
            CRPT.SetParameterValue("datevalue", Servercls.Datevalue);
            Report_Viewer.ReportSource = CRPT;

            sc.configureCrystalReport();
            Report_Viewer.Refresh();

您的水晶报表参数名称必须与您的代码背后的参数名称相同。