Count row in Oracle : Oracle JDBC « Database SQL JDBC « Java

Count row in Oracle

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class CountRows_Oracle {

  public static Connection getConnection() throws Exception {
    String driver = "oracle.jdbc.driver.OracleDriver";
    String url = "jdbc:oracle:thin:@localhost:1521:databaseName";
    String username = "userName";
    String password = "pass";

    Connection conn = DriverManager.getConnection(url, username, password);
    return conn;

  public static int countRows(Connection conn, String tableName) throws SQLException {
    // select the number of rows in the table
    Statement stmt = null;
    ResultSet rs = null;
    int rowCount = -1;
    try {
      stmt = conn.createStatement();
      rs = stmt.executeQuery("SELECT COUNT(*) FROM " + tableName);
      // get the number of rows from the result set;
      rowCount = rs.getInt(1);
    } finally {

    return rowCount;

  public static void main(String[] args) {
    Connection conn = null;
    try {
      conn = getConnection();
      String tableName = "myTable";
      System.out.println("tableName=" + tableName);
      System.out.println("conn=" + conn);
      System.out.println("rowCount=" + countRows(conn, tableName));
    } catch (Exception e) {
    } finally {
      // release database resources
      try {
      } catch (SQLException e) {

Related examples in the same category

1.Create a table in database
2.Get Object From Oracle Database Using STRUCT
3.Insert BLOG(Picture or Photo) Data Type Into Oracle Database
4.Serialized And Deserialize Object Oracle
5.Get Oracle Table Names
6.Get Parameter MetaData From Oracle JDBC Driver
7.Test Oracle JDBC Driver Installation
8.Create Employee Table Oracle
9.Get Column Names From ResultSet for Oracle
10.Demo ResultSet Oracle
11.All data types for Oracle
12.Get Column Privileges Oracle
13.Test OCINet 8 App
14.Test SSL
15.Test Data Encryption Integrity
16.Test DataSource LookUp
17.OracleDataSource Demo
18.Register custome type to Oracle
19.Insert custom type to Oracle
20.Check JDBC Installation for Oracle
21.Creating an OBJECT Type in an Oracle Database
22.Inserting an OBJECT Value into an Oracle Table
23.Connect to an Oracle database with JDBC
24.Creating an Oracle Table to Store Java Types