Solved

using prepared statement

Posted on 2000-05-12
1
254 Views
Last Modified: 2008-02-26
conside the following  query which is executed using Stament stmt..
sqlcom = "select count(*) from bloodbanks where ucase(city) = \'" + city.toUpperCase() + "\'";

if (!pin.equals(""))
      sqlcom = sqlcom + " and pin = \'" + pin + "\'";

if (!area.equals(""))
      sqlcom = sqlcom + " and ( ucase(area) like  \'" + area.toUpperCase()  "%\')";  
   
Statement stmt=con.createStatement();
ResultSet rs=stmt.executeQuery(sqlcom);

now how to execute the above using prepared statement.
0
Comment
Question by:qader99
1 Comment
 
LVL 1

Accepted Solution

by:
mohans earned 50 total points
ID: 2804166
String sqlcom = "select count(*) from bloodbanks where ucase(city) =?";
Vector params = new Vector();
params.addElement(city.toUpperCase());

if (!pin.equals("")) {
  sqlcom = sqlcom + " and pin = ?";
  params.addElement(pin);
}

if (!area.equals("")) {
  sqlcom = sqlcom + " and ( ucase(area) like ?";
   params.addElement( area.toUpperCase() );
}

PreparedStatement ps = con.prepareStatement(sqlcom);
for (int i=0; i<params.size(); i++){
  ps.setObject(i+1, params.elementAt(i));
}

ResultSet rs = ps.executeQuery();
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

INTRODUCTION Working with files is a moderately common task in Java.  For most projects hard coding the file names, using parameters in configuration files, or using command-line arguments is sufficient.   However, when your application has vi…
Introduction Java can be integrated with native programs using an interface called JNI(Java Native Interface). Native programs are programs which can directly run on the processor. JNI is simply a naming and calling convention so that the JVM (Java…
This tutorial covers a step-by-step guide to install VisualVM launcher in eclipse.
Viewers will learn how to properly install Eclipse with the necessary JDK, and will take a look at an introductory Java program. Download Eclipse installation zip file: Extract files from zip file: Download and install JDK 8: Open Eclipse and …

840 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question