Java Database Connectivity Jdbc Wmich Edu-PDF Free Download

Java DataBase Connectivity JDBC wmich edu
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J2EE application model, J2EE is a multitiered distributed application model. client machines, the J2EE server machine, the database or legacy machines at the back end. JDBC is an interface which allows Java code to, execute SQL statements inside relational. connectivity for Oracle, data processing, utilities driver. jdbc odbc ODBC, bridge driver, The JDBC ODBC Bridge.
ODBC Open Database Connectivity is a, Microsoft standard from the mid 1990 s. It is an API that allows C C programs to, execute SQL inside databases. ODBC is supported by many products, The JDBC ODBC Bridge Contd. The JDBC ODBC bridge allows Java code, to use the C C interface of ODBC. means that JDBC can access many different, database products.
The layers of translation Java C, SQL can slow down execution. The JDBC ODBC Bridge Contd, The JDBC ODBC bridge comes free with. called sun jdbc odbc JdbcOdbcDriver, The ODBC driver for Microsoft Access. comes with MS Office, so it is easy to connect Java and Access. JDBC Pseudo Code, All JDBC programs do the following.
Step 1 load the JDBC driver, Step 2 Specify the name and location of the database being used. Step 3 Connect to the database with a Connection object. Step 4 Execute a SQL query using a Statement object. Step 5 Get the results in a ResultSet object, Step 6 Finish by closing the ResultSet Statement and Connection objects. JDBC API in J2SE, Set up a database server Oracle MySQL pointbase. Get a JDBC driver, set CLASSPATH for driver lib, Set classpath in windows control panel system advanced environment variable. Set classpath in Solaris set CLASSPATH to driver jar file. Import the library, import java sql, Specify the URL to database server.
String url jdbc pointbase 127 0 0 1 test, Load the JDBC driver. Class forName com pointbase jdbc jdbcUniversalDriver. Connect to database server, Connection con DriverManager getConnection url dbUser dbPass. Create SQL Statement, stmt con createStatement, Execute SQL. stmt executeUpdate insert into COFFEES values Colombian 00101 7 99 0. ResultSet rs stmt executeQuery query, JDBC Example. import java sql, public class SqlTest, public static void main String args.
Step 1 Make a connection, Load the driver, Class forName com pointbase jdbc jdbcUniversalDriver. Get a connection using this driver, String url jdbc pointbase localhost cs595. String dbUser PBPUBLIC, String dbPassword PBPUBLIC. Connection con DriverManager getConnection url dbUser dbPassword. JDBC Example Contd, Statement stmt con createStatement. String sql select from Traps, ResultSet rs stmt executeQuery sql.
String name, double val, java sql Date date, while rs next. name rs getString TrapName, val rs getDouble TrapValue. date rs getDate TrapDate, System out println name name Value val Date date. stmt close, catch ClassNotFoundException ex1, System out println ex1. catch SQLException ex2, System out println ex2, JDBC Diagram.
creates creates creates, DriverManager Connection Statement ResultSet. make link Driver, Load Driver, DriverManager is responsible for establishing the. connection to the database through the driver, Class forName. sun jdbc odbc JdbcOdbcDriver, Connection conn, DriverManager getConnection url. Specify the URL to database server, The name and location of the database is.
given as a URL, the details of the URL vary depending on the. type of database that is being used, Database URL, jdbc pointbase host domain com 9092 data file. The comms The machine Database The path to, protocol holding the the database. database on the machine, e g jdbc pointbase localhost myDB. Statement Object, The Statement object provides a, workspace where SQL queries can be.
created executed and results collected, Statement st. conn createStatement, ResultSet rs st executeQuery. Java DataBase Connectivity JDBC J2EE application model J2EE is a multitiered distributed application model client machines the J2EE server machine the database or legacy machines at the back end JDBC API JDBC is an interface which allows Java code to execute SQL statements inside relational databases Java program connectivity data processing utilities JDBC driver for Oracle driver for MySQL

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