How to Avoid '80040e10' Errors When Using ASP Variables in SQL Statements?

How to Utilize ASP Variables within SQL Statements

In web development, it is often necessary to incorporate values from ASP variables into SQL statements. However, if the variable is not handled properly within the statement, an error like '80040e10' may occur, indicating missing parameters.

Let's take the following ASP code as an example:

<%
postit = request.querystring("thispost")
response.write(postit)
%>

delCmd.CommandText="DELETE * FROM post WHERE (pos_ID = postit )"

Here, the variable postit is retrieved from the request query string. To incorporate this variable into the SQL statement, we need to add a parameter:

delCmd.CommandText="DELETE * FROM post WHERE (pos_ID = ?)"

Next, we need to create a parameter using the CreateParameter method:

delCmd.Parameters.Append delCmd.CreateParameter("posid", adInteger, adParamInput)

Finally, we assign the value of the postit variable to the parameter using the Value property:

delCmd.Parameters("posid").Value = postit

This approach ensures that the SQL statement correctly utilizes the ASP variable and prevents the parameter error from occurring.

The above is the detailed content of How to Avoid '80040e10' Errors When Using ASP Variables in SQL Statements?. For more information, please follow other related articles on the PHP Chinese website!