How do you access the value of an SQL count () query in a Java program

java sql jdbc count
Ankur picture Ankur · May 4, 2010 · Viewed 126.2k times · Source

I want to get to the value I am finding using the COUNT command of SQL. Normally I enter the column name I want to access into the getInt() getString() method, what do I do in this case when there is no specific column name.

I have used 'AS' in the same manner as is used to alias a table, I am not sure if this is going to work, I would think not.

Statement stmt3 = con.createStatement();
ResultSet rs3 = stmt3.executeQuery("SELECT COUNT(*) FROM "+lastTempTable+") AS count");
    while(rs3.next()){
    count = rs3.getInt("count");
    }

Answer

Bozho picture Bozho · May 4, 2010

Use aliases:

SELECT COUNT(*) AS total FROM ..

and then

rs3.getInt("total")

Related questions

How do I get the size of a java.sql.ResultSet?

Shouldn't this be a pretty straightforward operation? However, I see there's neither a size() nor length() method.

Read More
java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/dbname

I have this Java program: MySQLConnectExample.java import java.sql.*; import java.util.Properties; public class MySQLConnectExample { public static void main(String[] args) { Connection conn1 = null; Connection conn2 = null; Connection conn3 = null; try { String url1 = "jdbc:mysql://localhost:3306/aavikme"; String …

Read More
How to get the insert ID in JDBC?

I want to INSERT a record in a database (which is Microsoft SQL Server in my case) using JDBC in Java. At the same time, I want to obtain the insert ID. How can I achieve this using JDBC API?

Read More