在Java中使用SQL包java.sql

Question

during a lecture my professor gave examples of several actions involving databases and the java.sql package. These examples were supposed to be uploaded online in a pdf file, but for some reason the names of all functions and class names aren't displaying with my pdf reader.

I would like to know the equilavents of the following PHP functions in Java:

mysql_connect
mysql_query
mysql_fetch_row
mysql_fetch_assoc
mysql_close

Thanks!

Answer 1

If you consult the Java API docs appropriate for the version you're using (I'm using JDK 1.5, so it's http://java.sun.com/j2se/1.5.0/docs/api/) and click on java.sql, you can see all the classes for Java JDBC access.

Basically, you create a new Connection to a database with DriverManager, and do a query with Connection.prepareStatement, PreparedStatement.execute() and PreparedStatement.executeQuery() and loop through the resultant ResultSet with ResultSet.next() and pull the results out with ResultSet.getXXXXX.