![]() Related Questions Latest Answer : If the connection is alive, then only the values remain in a ResultSet, where as in RowSet,once we get the results connection need not be alive. ... The JDBC Driver interface provides vendor-specific implementations of the abstract classes provided by the JDBC API. Each vendors driver must provide implementations of the java.sql.Connection,Statement,PreparedStatement, Latest Answer : As has been mentioned above, the implementations are provided by the database vendors like for example, the classes12.jar of oracle which has the implementations. ... There are 8 packages: java.sql.Driver, Connection,Statement, PreparedStatement, CallableStatement, ResultSet, ResultSetMetaData, DatabaseMetaData. Latest Answer : Packages arejava.sql and javax.sql only..Those mentioned in the previous lists are the classes & interfaces in those packages. ... A URL string -->getConnection-->DriverManager-->Driver-->Connection-->Statement-->executeQuery-->ResultSet. Latest Answer : I guess, order is like this1) load driver2) register driver to driver manager3) get connection from driver manager4) get statement object from connection5) create queries and execute them6) close connection ... First JDBC returns results in a ResultSet object, so we need to declare an instance of the class ResultSet to hold our results. The following code demonstrates declaring the ResultSet object rs.E.g.ResultSet Latest Answer : import java.sql.*;class JDBCtableread{ public static void main(String args[])throws Exception { try { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String url="jdbc:odbc:dsn2";//dsn name Connection con=DriverManager.getConnection(url); ... The first step is to create a CallableStatement object. As with Statement an and PreparedStatement objects, this is done with an open Connection object. A CallableStatement object contains a call to a Latest Answer : Stored Procedures can be called in java by using the prepareCall() method which returns a CallableStatement object.CallableStatement cs = con.prepareCall("{call Procedure_name}");ResultSet rs = cs.executeQuery(); ... SQLWarning objects are a subclass of SQLException that deal with database access warnings. Warnings do not stop the execution of an application, as exceptions do; they simply alert the user that something Another new feature in the JDBC 2.0 API is the ability to update rows in a result set using methods in the Java programming language rather than having to send an SQL command. But before you can take advantage Latest Answer : Following above answer, we can iterate through result set using, next() method and set corresponding column values for each row, using setInt/String/Float etc methods specifying column index or column name and value.Thankskalyan ... Latest Answer : Invove getResultSet() method of the callableStatement object which is inherited from java.sql.Statement interface ... A) SQLWarning objects are a subclass of SQLException that deal with database access warningsB) Warnings stop the execution of an application, as exceptions do; they simply alert the user that something Latest Answer : No. The JDBC-ODBC Bridge does not support concurrent access from different threads. The JDBC-ODBC Bridge uses synchronized methods to serialize all of the calls that it makes to ODBC. Multi-threaded Java programs may use the Bridge, but they won't get ...
Sponsored Links
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||