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Regarding connectivity sir.. I make a project in a C.It is a finacial type project...I want to connect my project to any database.how i can connect it

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Try using C++...but it needs some header files...

Posted on Mar 03, 2008

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2 Answers

Printing syntax


'declare the variables
Dim Connection
Dim ConnString
Dim Recordset
Dim SQL

'define the connection string, specify database driver
ConnString="DRIVER={SQL Server};SERVER=yourServername;UID=yourUsername;" & _
"PWD=yourPassword;DATABASE=yourDatabasename"

'declare the SQL statement that will query the database
SQL = "SELECT * FROM TABLE_NAME"

'create an instance of the ADO connection and recordset objects
Set Connection = Server.CreateObject("ADODB.Connection")
Set Recordset = Server.CreateObject("ADODB.Recordset")

'Open the connection to the database

Connection.Open ConnString

'Open the recordset object executing the SQL statement and return records
Recordset.Open SQL,Connection

'first of all determine whether there are any records
If Recordset.EOF Then
Response.Write("No records returned.")
Else
'if there are records then loop through the fields
Do While NOT Recordset.Eof
Response.write Recordset("FIRST_FIELD_NAME")
Response.write Recordset("SECOND_FIELD_NAME")
Response.write Recordset("THIRD_FIELD_NAME")
Response.write "<br>"
Recordset.MoveNext
Loop
End If


'close the connection and recordset objects to free up resources
Recordset.Close
Set Recordset=nothing
Connection.Close
Set Connection=nothing

May 16, 2009 | Microsoft Windows Vista Ultimate Edition

1 Answer

How can i connect the data base during my project


That seems fine.

I cant assume your level of confidence in programming, however, following are some simple steps you can follow to achieve (for complex implementations, much more time and details will be needed, i can help u with them as well)

1. Create a database in Access ( i assume u r using Access 2003)
2. Create a System DSN (if aren't clear, how to create then goto administrative tools under control panel and you'll find Data Sources (ODBC), here u need to create System level DSN for Access driver (may be Jet 4.0+)
3. In java, you need to import java core libraries for sql (javax.sql package specially)
4. you are almost done, just google for database code in java, simple code will be around 5-10 lines (just for your reference, search with these keywords, ClassName(""), jdbc:odbc:YourDSN)
5. Open a connection using Connection object
6. Fetch the records (select query) using Recordset object
7. You're done.

thanks
Kuldeep

Mar 13, 2009 | HP Operating Systems

2 Answers

How to connect from jsp login page to database


hey try this code......just found it on the net... Put the code in tomcat and test the application through browser. The browser should display the display the data stored in the table.

Here is the code of our JSP file
<%@ page language="java" import="java.sql.*"%>
<html>
<head><title>Read from mySQL Database</title>
</head>
<body>

<p align="center"><b>Following records are selected from the 'jakartaproject' table.</b><br>&nbsp;</p>

<div align="center" width="85%">
<center>
<table border="1" borderColor="#ffe9bf" cellPadding="0" cellSpacing="0" width="658" height="63">
<tbody>
<td bgColor="#008080" width="47" align="center" height="19"><font color="#ffffff"><b>Sr.
No.</b></font></td>
<td bgColor="#008080" width="107" height="19"><font color="#ffffff"><b>Project</b></font></td>
<td bgColor="#008080" width="224" height="19"><font color="#ffffff"><b>Url
Address</b></font></td>
<td bgColor="#008080" width="270" height="19"><font color="#ffffff"><b>Description
of the project</b></font></td>

<%
String DRIVER = "org.gjt.mm.mysql.Driver";
Class.forName(DRIVER).newInstance();


Connection con=null;
ResultSet rst=null;
Statement stmt=null;

try{
String url="jdbc:mysql://192.168.10.2/tutorial?user=tutorial&password=tutorial";

int i=1;
con=DriverManager.getConnection(url);
stmt=con.createStatement();
rst=stmt.executeQuery("select * from jakartaproject ");
while(rst.next()){

if (i==(i/2)*2){
%>
<tr>
<td bgColor="#ffff98" vAlign="top" width="47" align="center" height="19"><%=i%>.</td>
<td bgColor="#ffff98" vAlign="top" width="107" height="19"><%=rst.getString(2)%></td>
<td bgColor="#ffff98" vAlign="top" width="224" height="19"><a href="<%=rst.getString(3)%>"><%=rst.getString(3)%></a>&nbsp;</td>
<td bgColor="#ffff98" vAlign="top" width="270" height="19"><%=rst.getString(4)%></td>
</tr>
<%
}else{
%>
<tr>
<td bgColor="#ffcc68" vAlign="top" width="47" align="center" height="19"><%=i%>.</td>
<td bgColor="#ffcc68" vAlign="top" width="107" height="19"><%=rst.getString(2)%></td>
<td bgColor="#ffcc68" vAlign="top" width="224" height="19"><a href="<%=rst.getString(3)%>"><%=rst.getString(3)%></a>&nbsp;</td>
<td bgColor="#ffcc68" vAlign="top" width="270" height="19"><%=rst.getString(4)%></td>
</tr>
<% }

i++;
}
rst.close();
stmt.close();
con.close();
}catch(Exception e){
System.out.println(e.getMessage());
}
%>

</tbody>
</table>
</center>
</div>


</body>
</html>

Feb 27, 2009 | Compaq Operating Systems

1 Answer

How to write jdbc connections


http://www.jdbc-tutorial.com/

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welcome_title_image.gif Java JDBC Tutorial Java JDBC Tutorial
The JDBC ( Java Database Connectivity) API defines interfaces and classes for writing database applications in Java by making database connections. Using JDBC you can send SQL, PL/SQL statements to almost any relational database. JDBC is a Java API for executing SQL statements and supports basic SQL functionality. It provides RDBMS access by allowing you to embed SQL inside Java code. Because Java can run on a thin client, applets embedded in Web pages can contain downloadable JDBC code to enable remote database access. You will learn how to create a table, insert values into it, query the table, retrieve results, and update the table with the help of a JDBC Program example.


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Although JDBC was designed specifically to provide a Java interface to relational databases, you may find that you need to write Java code to access non-relational databases as well.
JDBC Architecture jdbc.jpg Java application calls the JDBC library. JDBC loads a driver which talks to the database. We can change database engines without changing database code.
JDBC Basics - Java Database Connectivity Steps Before you can create a java jdbc connection to the database, you must first import the
java.sql package.
import java.sql.*; The star ( * ) indicates that all of the classes in the package java.sql are to be imported.
1. Loading a database driver,
In this step of the jdbc connection process, we load the driver class by calling Class.forName() with the Driver class name as an argument. Once loaded, the Driver class creates an instance of itself. A client can connect to Database Server through JDBC Driver. Since most of the Database servers support ODBC driver therefore JDBC-ODBC Bridge driver is commonly used.
The return type of the Class.forName (String ClassName) method is “Class”. Class is a class in
java.lang package.
try { Class.forName(”sun.jdbc.odbc.JdbcOdbcDriver”); //Or any other driver } catch(Exception x){ System.out.println( “Unable to load the driver class!” ); } 2. Creating a oracle jdbc Connection

The JDBC DriverManager class defines objects which can connect Java applications to a JDBC driver. DriverManager is considered the backbone of JDBC architecture. DriverManager class manages the JDBC drivers that are installed on the system. Its getConnection() method is used to establish a connection to a database. It uses a username, password, and a jdbc url to establish a connection to the database and returns a connection object. A jdbc Connection represents a session/connection with a specific database. Within the context of a Connection, SQL, PL/SQL statements are executed and results are returned. An application can have one or more connections with a single database, or it can have many connections with different databases. A Connection object provides metadata i.e. information about the database, tables, and fields. It also contains methods to deal with transactions.
JDBC URL Syntax:: jdbc: <subprotocol>: <subname> JDBC URL Example:: jdbc: <subprotocol>: <subname>•Each driver

Feb 01, 2009 | Microsoft Windows XP Home Edition

1 Answer

Vb database connectivity


use odbc tool located in controll pannel and make a database file for use from visual basic6.0

Mar 22, 2008 | Operating Systems

1 Answer

JDBC


steps to retrieve results.

create the driver.
Class.forName(" ");
create a connection.
Connection con_name=DriverManager.getConnection("Dbname","coloumn name");
create statement
Statement stmt_name=con_name.createStatement();
To retrieve resule fron DB use the below codes

ResuleSet rs;
rs=stmt_name.executeQuery("select * from DB name");

Mar 01, 2008 | Operating Systems

1 Answer

Final yr project


Nice project you can easy solve this problem first you want to known how to connect the java with sql or some other database. http://www.academictutorials.com/ this is the site this help you for your project. If you have any problem just contact me i will clear it.

Feb 17, 2008 | Operating Systems

1 Answer

Executing VB application from shared drive


I donot have much expertise on the subject but I think you can do the same by connecting your Database through ODBC connectivity than direct connection. In that way your database will be only on one Server and all can use the same by just using the program from their own console.

Feb 04, 2008 | Operating Systems

2 Answers

How to connevt visual basic with oracle(sql)


You need to install oracle client on client machine, and than you can use datasource (ODBC) to connect from vb to oracle.

Jan 23, 2008 | Operating Systems

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