"INSERT INTO" - Inserting New Data Rows

JDBC for Oracle - Herong's Tutorial Examples

∟"INSERT INTO" - Inserting New Data Rows

This section describes how to insert new data rows with INSERT INTO statements.

INSERT statements are used very often by database applications to insert new data rows into tables. The syntax of INSERT statements is very simple. You need to provide a list of column names and a list of values for those columns. There are a couple of simple rules about INSERT statements:

You don't have to provide values to columns that have default values defined.
You don't have to provide values to columns that allow null values.

INSERT statements should be executed with the executeUpdate() method. Here is a simple program that insert some rows into my table Profile:

/* OracleMultipleInserts.java
 * Copyright (c) HerongYang.com. All Rights Reserved.
 */
import java.util.*;
import java.sql.*;
public class OracleMultipleInserts {
  public static void main(String [] args) {
    Connection con = null;
    try {

// Setting up the DataSource object
      oracle.jdbc.pool.OracleDataSource ds
        = new oracle.jdbc.pool.OracleDataSource();
      ds.setDriverType("thin");
      ds.setServerName("localhost");
      ds.setPortNumber(1521);
      ds.setDatabaseName("XE"); // Oracle SID
      ds.setUser("Herong");
      ds.setPassword("TopSecret");

// Getting a connection object and statement object
      con = ds.getConnection();
      Statement sta = con.createStatement();
      int count = 0;

// insert a single row using default values
      count += sta.executeUpdate(
        "INSERT INTO Profile"
        + " (ID, FirstName)"
        + " VALUES (1, 'Herong')");

// insert a single row using provided values
      count += sta.executeUpdate(
        "INSERT INTO Profile"
        + " (ID, FirstName, LastName, Point, BirthDate)"
        + " VALUES (2, 'Janet', 'Gates', 999.99, '13-Oct-1984')");

// insert rows with loop with random values
      Random r = new Random();
      for (int i=0; i<10; i++) {
        Float points = 1000*r.nextFloat();
        String firstName = Integer.toHexString(r.nextInt(9999));
        String lastName = Integer.toHexString(r.nextInt(999999));
        count += sta.executeUpdate(
          "INSERT INTO Profile"
          + " (ID, FirstName, LastName, Point)"
          + " VALUES ("+(i+10)+", '"+firstName+"', '"+lastName+"', "
          + points+")");
      }

// How many rows were inserted
      System.out.println("Number of rows inserted: "+count);

// Checking inserted rows
      ResultSet res = sta.executeQuery(
        "SELECT * FROM Profile");
      System.out.println("List of Profiles: ");
      while (res.next()) {
         System.out.println(
           "  "+res.getInt("ID")
           + ", "+res.getString("FirstName")
           + ", "+res.getString("LastName")
           + ", "+res.getDouble("Point")
           + ", "+res.getDate("BirthDate")
           + ", "+res.getTimestamp("ModTime"));
      }
      res.close();

      sta.close();
      con.close();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

Notice that Random class was used to generate some random strings and numbers.

If you run this program again, 12 records will be inserted into "Profile" table.

herong> java -cp .;ojdbc11.jar OracleMultipleInserts

Number of rows inserted: 12
List of Profiles:
  10, 17cb, 56a65, 559.5103, 1988-12-31, 2006-12-31 11:59:59.999
  1, Herong, null, 0.0, 1988-12-31, 2006-12-31 11:59:59.999
  2, Janet, Gates, 999.99, 1984-10-13, 2006-12-31 11:59:59.999
  11, 218, ed1e7, 727.6421, 1988-12-31, 2006-12-31 11:59:59.999
  12, bd, 346ac, 214.58476, 1988-12-31, 2006-12-31 11:59:59.999
  13, 19fa, c4280, 852.094, 1988-12-31, 2006-12-31 11:59:59.999
  14, 25c, 9fb63, 860.36957, 1988-12-31, 2006-12-31 11:59:59.999
  15, 1f85, 924f4, 125.26178, 1988-12-31, 2006-12-31 11:59:59.999
  16, 47b, 3c5d9, 882.1738, 1988-12-31, 2006-12-31 11:59:59.999
  17, 196e, 71d6e, 981.2028, 1988-12-31, 2006-12-31 11:59:59.999
  18, f4c, 4bdfe, 368.7445, 1988-12-31, 2006-12-31 11:59:59.999
  19, 2d4, 871a4, 433.00528, 1988-12-31, 2006-12-31 11:59:59.999

By the way, if you are getting the "no privileges on tablespace 'USERS'" exception, you probably forgot to give "Herong" enough space in the tablespace 'USERS'. So run the "ALTER USER Herong QUOTA 10M ON USERS;" to fix the problem.

herong> java -cp .;ojdbc11.jar OracleMultipleInserts

java.sql.SQLSyntaxErrorException: ORA-01950: 
   no privileges on tablespace 'USERS'
 at oracle.jdbc.driver.T4CTTIoer11.processError(T4CTTIoer11.java:630)
 at oracle.jdbc.driver.T4CTTIoer11.processError(T4CTTIoer11.java:564)
 ...