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2010-06-01T05:06:26Z

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в 17:44, 31 мая 2010

2010-05-31T17:44:27Z

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== Loading a JDBC Driver: Using Class.forName() ==



<source lang="java">
String className = "org.gjt.mm.mysql.Driver";
Class driverObject = Class.forName(className);</source>



== To test a JDBC driver installation using MySQL ==



<source lang="java">
public class MainClass {
public static void main(String[] args) {
try {
String className = "org.gjt.mm.mysql.Driver";
Class driverObject = Class.forName(className);
System.out.println("driverObject=" + driverObject);
System.out.println("your installation of JDBC Driver OK.");
} catch (Exception e) {
System.out.println("Failed: JDBC Driver Error: " + e.getMessage());
}
}
}</source>



== To test a JDBC driver installation using Oracle ==



<source lang="java">
public class MainClass {
public static void main(String[] args) {
try {
String className = "oracle.jdbc.driver.OracleDriver";
Class driverObject = Class.forName(className);
System.out.println("driverObject=" + driverObject);
System.out.println("your installation of JDBC Driver OK.");
}
catch (Exception e) {
System.out.println("Failed: JDBC Driver Error: " + e.getMessage());
}
}
}</source>



== Using DriverManager.registerDriver() ==



<source lang="java">
//String className = "org.gjt.mm.mysql.Driver";
try {
// Registers the given driver with the DriverManager.
DriverManager.registerDriver(new org.gjt.mm.mysql.Driver());
// here the class is loaded
}
catch (SQLException e) {
e.printStackTrace();
}</source>



== What is a JDBC Driver? ==

<OL><LI>A JDBC driver allows a Java application/client to communicate with a SQL database.</LI><LI>A JDBC driver is a Java class that implements the JDBC"s java.sql.Driver interface.</LI><LI>A JDBC driver converts program (and typically SQL) requests for a particular database.</LI></OL>

== What is JDBC? ==

<p>JDBC is a set of programming APIs that allows easy connection to a wide range of databases (especially relational databases) through Java programs.
(JDBC Recipes: A Problem-Solution Approach
by Mahmoud Parsian
Apress 2005)</p>
<p>The following are core JDBC classes, interfaces, and exceptions in the java.sql package:</p>
<OL><LI>DriverManager</LI><LI>Connection</LI><LI>Statement</LI><LI>PreparedStatement</LI><LI>CallableStatement</LI><LI>ResultSet</LI><LI>SQLException</LI></OL>

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Admin: 1 версия

в 17:44, 31 мая 2010