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POUsing parameters for date in Oracle query
 

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  1. POUsing parameters for date in Oracle query
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    <p>I have a set of queries I am running out of VB.NET codebehind on a web page that read a user's input for start and end dates. Here is the code/query:</p> <pre><code>strOraQuery = "SELECT a.col1, a.col2, a.col3 " &amp; _ "FROM a_table a LEFT JOIN b_table b ON (a.col1=b.col1) " &amp; _ "WHERE a.datecol BETWEEN :startdate AND :enddate" oracmd = New OracleCommand(strOraQuery, oracn) oracmd.Parameters.Add(New OracleParameter(":enddate", strEndDate)) oracmd.Parameters.Add(New OracleParameter(":startdate", strStartDate)) </code></pre> <p>EDIT #2: These parameters are actually out of order in my code, so I flipped them to show the issue that I was actually having. Refer to answers/comments below.</p> <p>strStartDate and strEndDate are both in mm/dd/yyyy format.</p> <p>This bit of code runs the query through a DataReader and into a DataTable. The error I am receiving from running the query is </p> <blockquote> <p>ORA-01858: a non-numeric character was found where a numeric was expected</p> </blockquote> <p>I have tried to change the query and the Parameters.Add() statement around in at least a dozen different ways and nothing has worked yet. What am I doing wrong?</p> <p>Thank you.</p> <p>EDIT:</p> <p>The start and end dates are global variables declared and set like so:</p> <pre><code>Dim strStartDate As String Dim strEndDate As String Protected Sub btnRun_Click(sender As Object, e As EventArgs) Handles btnRun.Click strStartDate = txtStartDate.Text strEndDate = txtEndDate.Text ... </code></pre>
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