//************************************************************************************
//
// Copyright (c) 2004-2008 by Teradata Corporation
// All Rights Reserved
//
// TERADATA CORPORATION CONFIDENTIAL AND TRADE SECRET
//
//************************************************************************************
//
// File: T21010JD.java
// Header: none
// Purpose: Demonstrate searching for specific procedure column
// names and searching for column names for a
// specific procedure by using wildcard characters
// The program will:
// - Connect as user guest/please
// - Obtain and display names of all procedure
// parameter and result columns in all databases
// matching a specified name pattern
// - Obtain and display names of all procedure
// parameter and result columns in all databases
// for a specific procedure using wildcard characters
// - Disconnect.
//
// JDBC API: java.sql.Connection, java.sql.DatabaseMetaData,
// java.sql.DatabaseMetaData.getProcedureColumns
//
// Version: Updated for Teradata V2R6
//
//************************************************************************************
import java.sql.*;
public class T21010JD
{
// Name of the user able to create, drop, and manipulate tables
public static String sUser = "guest";
public static String sPassword = "please";
public static void main(String args[])
throws ClassNotFoundException
{
// Creation of URL to be passed to the JDBC driver
String url = "jdbc:teradata://whomooz/TMODE=ANSI,CHARSET=UTF8";
// Wildcard name patterns used for procedure column search
String colWildName = "i_";
String procWildName = "get%Info";
try
{
System.out.println(" Sample T21010JD: ");
System.out.println(" Looking for the Teradata JDBC driver... ");
// Loading the Teradata JDBC driver
Class.forName("com.teradata.jdbc.TeraDriver");
System.out.println(" JDBC driver loaded. ");
// Attempting to connect to Teradata
System.out.println(" Attempting to connect to Teradata via" +
" the JDBC driver...");
// Creating a connection object
Connection con = DriverManager.getConnection(url, sUser, sPassword);
System.out.println(" User " + sUser + " connected.");
System.out.println(" Connection to Teradata established. ");
try
{
// Creating a DatabaseMetaData object from an active
// connection.
DatabaseMetaData dbmd = con.getMetaData();
System.out.println(" DatabaseMetaData object created. ");
// The following code demonstrates searching for
// procedure columns in all databases.
// Use getProcedureColumns to generate a result set
// of procedure columns matching a specified name pattern.
ResultSet rs = dbmd.getProcedureColumns(null, null,
null, colWildName);
// Display the procedure column names
System.out.println(" DISPLAYING ALL PROCEDURE COLUMNS"+
" IN ALL DATABASES MATCHING \"" + colWildName + "\":");
System.out.println(" Database Name : Procedure Name :" +
" Column Name : Column Type");
System.out.println(" --------------------------------" +
"--------------------------");
while(rs.next())
{
System.out.println(" " + rs.getString("PROCEDURE_SCHEM")
+ " : " + rs.getString("PROCEDURE_NAME")
+ " : " + rs.getString("COLUMN_NAME")
+ " : " + rs.getString("COLUMN_TYPE"));
}
// Search for all parameter and result columns belonging
// to a specified procedure matching a specified name
// pattern. Use getProcedureColumns to generate
// a result set of procedure columns.
rs = dbmd.getProcedureColumns(null, null,
procWildName, null);
// Display the procedure column names
System.out.println(" DISPLAYING ALL PROCEDURE COLUMNS"+
" OF PROCEDURES MATCHING \"" + procWildName + "\":");
System.out.println(" Database Name : Procedure Name :" +
" Column Name : Column Type");
System.out.println(" --------------------------------" +
"--------------------------");
while(rs.next())
{
System.out.println(" " + rs.getString("PROCEDURE_SCHEM")
+ " : " + rs.getString("PROCEDURE_NAME")
+ " : " + rs.getString("COLUMN_NAME")
+ " : " + rs.getString("COLUMN_TYPE"));
}
}
finally
{
// Close the connection
System.out.println(" Closing connection to Teradata...");
con.close();
System.out.println(" Connection to Teradata closed. ");
}
System.out.println(" Sample T21010JD finished. ");
}
catch (SQLException ex)
{
// A SQLException was generated. Catch it and display
// the error information.
// Note that there could be multiple error objects chained
// together.
System.out.println();
System.out.println("*** SQLException caught ***");
while (ex != null)
{
System.out.println(" Error code: " + ex.getErrorCode());
System.out.println(" SQL State: " + ex.getSQLState());
System.out.println(" Message: " + ex.getMessage());
ex.printStackTrace();
System.out.println();
ex = ex.getNextException();
}
throw new IllegalStateException ("Sample failed.") ;
}
} // End main
} // End class T21010JD
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