Getting and Inserting Binary Data into an Database Table : Blob Clob « Database « Java Tutorial






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

public class Main {
  public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);
    String sql = "INSERT INTO mysql_all_table (col_binarystream) VALUES(?)";
    PreparedStatement pstmt = connection.prepareStatement(sql);

    byte[] buffer = "some data".getBytes();
    pstmt.setBytes(1, buffer);
    pstmt.executeUpdate();
    pstmt.close();

    Statement stmt = connection.createStatement();
    ResultSet resultSet = stmt.executeQuery("SELECT * FROM mysql_all_table");
    while (resultSet.next()) {
      byte[] bytes = resultSet.getBytes("col_binarystream");
    }
  }
}








20.22.Blob Clob
20.22.1.Getting and Inserting Binary Data into an Database Table
20.22.2.Store BLOBs data into database
20.22.3.Read BLOBs data from database
20.22.4.Blob and Clob data type
20.22.5.Getting BLOB Data from a Database Table: how to retrieves bytes from a BLOB.
20.22.6.Store CLOBs data into database?
20.22.7.Read CLOBs data from database
20.22.8.Insert an Image
20.22.9.Retrieve an Image