JDBC-ODBC - Missing Flat Data Files

This section describes what will happen if a flat data file is missing and you are trying to use it in a query.

If you made a mistake when writing the SELECT query statement or creating the data files, you may get a statement that refers to a table without any data file. In this case, the ODBC driver will return an exception. Try this sample program:

/* OdbcFlatMissingFile.java
 - Copyright (c) 2015, HerongYang.com, All Rights Reserved.
 */
import java.sql.*;
public class OdbcFlatMissingFile {
  public static void main(String [] args) {
    Connection con = null;
    try {
      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
      con = DriverManager.getConnection("jdbc:odbc:HY_FLAT");
      Statement sta = con.createStatement(); 

// Running a query on a single table file
      ResultSet res = sta.executeQuery(
        "SELECT * FROM Account.txt");
      System.out.println("List of Accounts: "); 
      while (res.next()) {
         System.out.println("   "+res.getString(1)); 
      }
      res.close();

      sta.close();
      con.close();
    } catch (Exception e) {
      System.err.println("Exception: "+e.getMessage());
    }
  }
}

Here is what I got from this program. The error message is pretty clear.

C:\herong>\progra~1\java\jdk1.7.0_45\bin\javac 
   OdbcFlatMissingFile.java

C:\herong>\progra~1\java\jdk1.7.0_45\bin\java OdbcFlatMissingFile

Exception: [Microsoft][ODBC Text Driver] 
The Microsoft Jet database engine could not find the object 
'Account.txt'.  Make sure the object exists and that you spell 
its name and the path name correctly.

Last update: 2015.

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 JDK (Java SE) Installation

 Installing and Running Java DB - Derby

 Derby (Java DB) JDBC Driver

 Derby (Java DB) JDBC DataSource Objects

 Java DB (Derby) - DML Statements

 Java DB (Derby) - ResultSet Objects of Queries

 Java DB (Derby) - PreparedStatement

 MySQL Installation on Windows

 MySQL JDBC Driver (MySQL Connector/J)

 MySQL - PreparedStatement

 MySQL - Reference Implementation of JdbcRowSet

 MySQL - JBDC CallableStatement

 MySQL CLOB (Character Large Object) - TEXT

 MySQL BLOB (Binary Large Object) - BLOB

 Oracle Express Edition Installation on Windows

 Oracle JDBC Drivers

 Oracle - Reference Implementation of JdbcRowSet

 Oracle - PreparedStatement

 Oracle - JBDC CallableStatement

 Oracle CLOB (Character Large Object) - TEXT

 Oracle BLOB (Binary Large Object) - BLOB

 Microsoft SQL Server 2005 Express Edition

 Microsoft JDBC Driver for SQL Server - sqljdbc42.jar

 Microsoft JDBC Driver - Query Statements and Result Sets

 Microsoft JDBC Driver - DatabaseMetaData Object

 Microsoft JDBC Driver - DDL Statements

 Microsoft JDBC Driver - DML Statements

 SQL Server - PreparedStatement

 SQL Server CLOB (Character Large Object) - TEXT

 SQL Server BLOB (Binary Large Object) - BLOB

 JDBC-ODBC Bridge Driver - sun.jdbc.odbc.JdbcOdbcDriver

JDBC-ODBC Bridge Driver - Flat Text Files

 JDBC-ODBC - Creating DSN for Flat Test File

 JDBC-ODBC - Connecting to Flat Text Files

 JDBC-ODBC - Getting Flat File Driver Info

 JDBC-ODBC - CREATE TABLE in Flat Text Files

 JDBC-ODBC - Listing Tables with meta.GetTables()

 JDBC-ODBC - Tab Delimited Flat File Data

 JDBC-ODBC - ODBC Configuration for Flat Files

 JDBC-ODBC - Executing Queries on Flat Files

JDBC-ODBC - Missing Flat Data Files

 JDBC-ODBC Bridge Driver - MS Access

 JDBC-ODBC Bridge Driver - MS SQL Server

 Summary of JDBC Drivers and Database Servers

 Additional Tutorial Notes to Be Added

 Outdated Tutorials

 References

 PDF Printing Version