Example usage for java.sql ResultSet getFloat

List of usage examples for java.sql ResultSet getFloat

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Introduction

In this page you can find the example usage for java.sql ResultSet getFloat.

Prototype

float getFloat(String columnLabel) throws SQLException;

Source Link

Document

Retrieves the value of the designated column in the current row of this ResultSet object as a float in the Java programming language.

Usage

From source file:PreparedStmt.java

public static void main(String args[]) throws Exception {

    String query = "SELECT * FROM Stock WHERE Item_Number = ?";
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
    Connection con = DriverManager.getConnection("jdbc:odbc:Inventory");
    PreparedStatement pstmt = con.prepareStatement(query);
    pstmt.setInt(1, 2);//from w  ww  .  j a va2 s. c  om
    ResultSet rs = pstmt.executeQuery();
    while (rs.next()) {
        String name = rs.getString("Name");
        String desc = rs.getString("Description");
        int qty = rs.getInt("Qty");
        float cost = rs.getFloat("Cost");
        System.out.println(name + ", " + desc + "\t: " + qty + "\t@ $" + cost);
    }
}

From source file:JdbcDemo.java

public static void main(String args[]) throws Exception {
    String query = "SELECT Name,Description,Qty,Cost FROM Stock";

    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
    Connection con = DriverManager.getConnection("jdbc:odbc:Inventory");
    Statement stmt = con.createStatement();
    ResultSet rs = stmt.executeQuery(query);
    while (rs.next()) {
        String name = rs.getString("Name");
        String desc = rs.getString("Description");
        int qty = rs.getInt("Qty");
        float cost = rs.getFloat("Cost");
        System.out.println(name + ", " + desc + "\t: " + qty + "\t@ $" + cost);
    }//  ww  w . j  a  va 2 s. c  o m
    con.close();
}

From source file:PrintResultSet.java

public static void main(String args[]) throws Exception {
    String query = "SELECT Name,Description,Qty,Cost FROM Stock";
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
    Connection con = DriverManager.getConnection("jdbc:odbc:Inventory");
    Statement stmt = con.createStatement();
    ResultSet rs = stmt.executeQuery(query);

    while (rs.next()) {
        System.out.print(rs.getString("Name") + "\t");
        System.out.print(rs.getString("Description") + "\t");
        System.out.print(rs.getInt("Qty") + "\t");
        System.out.println(rs.getFloat("Cost"));
    }//from w  w w .  j  a v a 2  s  .  c om
}

From source file:Logging.java

public static void main(String args[]) throws Exception {
    FileOutputStream errors = new FileOutputStream("StdErr.txt", true);
    PrintStream stderr = new PrintStream(errors);
    PrintWriter errLog = new PrintWriter(errors, true);
    System.setErr(stderr);//from w w  w.j  av a 2 s. c  o m

    String query = "SELECT Name,Description,Qty,Cost,Sell_Price FROM Stock";

    try {
        Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        Connection con = DriverManager.getConnection("jdbc:odbc:Inventory");
        Statement stmt = con.createStatement();
        ResultSet rs = stmt.executeQuery(query);
        while (rs.next()) {
            String name = rs.getString("Name");
            String desc = rs.getString("Description");
            int qty = rs.getInt("Qty");
            float cost = rs.getFloat("Cost");
        }
    } catch (ClassNotFoundException e) {
        e.printStackTrace(errLog);
    } catch (SQLException e) {
        System.err.println((new GregorianCalendar()).getTime());
        System.err.println("Thread: " + Thread.currentThread());
        System.err.println("ErrorCode: " + e.getErrorCode());
        System.err.println("SQLState:  " + e.getSQLState());
        System.err.println("Message:   " + e.getMessage());
        System.err.println("NextException: " + e.getNextException());
        e.printStackTrace(errLog);
        System.err.println();
    }
    stderr.close();
}

From source file:InsertCoffees.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;//  w  w  w.  jav  a2  s  .co m
    Statement stmt;
    String query = "select COF_NAME, PRICE from COFFEES";

    try {
        Class.forName("myDriver.ClassName");

    } catch (java.lang.ClassNotFoundException e) {
        System.err.print("ClassNotFoundException: ");
        System.err.println(e.getMessage());
    }

    try {

        con = DriverManager.getConnection(url, "myLogin", "myPassword");

        stmt = con.createStatement();

        stmt.executeUpdate("insert into COFFEES " + "values('Colombian', 00101, 7.99, 0, 0)");

        stmt.executeUpdate("insert into COFFEES " + "values('French_Roast', 00049, 8.99, 0, 0)");

        stmt.executeUpdate("insert into COFFEES " + "values('Espresso', 00150, 9.99, 0, 0)");

        stmt.executeUpdate("insert into COFFEES " + "values('Colombian_Decaf', 00101, 8.99, 0, 0)");

        stmt.executeUpdate("insert into COFFEES " + "values('French_Roast_Decaf', 00049, 9.99, 0, 0)");

        ResultSet rs = stmt.executeQuery(query);

        System.out.println("Coffee Break Coffees and Prices:");
        while (rs.next()) {
            String s = rs.getString("COF_NAME");
            float f = rs.getFloat("PRICE");
            System.out.println(s + "   " + f);
        }

        stmt.close();
        con.close();

    } catch (SQLException ex) {
        System.err.println("SQLException: " + ex.getMessage());
    }
}

From source file:SetSavepoint.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";

    try {/*  ww  w.  j  a va2s .  c om*/

        Class.forName("myDriver.className");

    } catch (java.lang.ClassNotFoundException e) {
        System.err.print("ClassNotFoundException: ");
        System.err.println(e.getMessage());
    }

    try {

        Connection con = DriverManager.getConnection(url, "myLogin", "myPassword");
        con.setAutoCommit(false);

        String query = "SELECT COF_NAME, PRICE FROM COFFEES " + "WHERE TOTAL > ?";
        String update = "UPDATE COFFEES SET PRICE = ? " + "WHERE COF_NAME = ?";

        PreparedStatement getPrice = con.prepareStatement(query);
        PreparedStatement updatePrice = con.prepareStatement(update);

        getPrice.setInt(1, 7000);
        ResultSet rs = getPrice.executeQuery();

        Savepoint save1 = con.setSavepoint();

        while (rs.next()) {
            String cof = rs.getString("COF_NAME");
            float oldPrice = rs.getFloat("PRICE");
            float newPrice = oldPrice + (oldPrice * .05f);
            updatePrice.setFloat(1, newPrice);
            updatePrice.setString(2, cof);
            updatePrice.executeUpdate();
            System.out.println("New price of " + cof + " is " + newPrice);
            if (newPrice > 11.99) {
                con.rollback(save1);
            }

        }

        getPrice = con.prepareStatement(query);
        updatePrice = con.prepareStatement(update);

        getPrice.setInt(1, 8000);

        rs = getPrice.executeQuery();
        System.out.println();

        Savepoint save2 = con.setSavepoint();

        while (rs.next()) {
            String cof = rs.getString("COF_NAME");
            float oldPrice = rs.getFloat("PRICE");
            float newPrice = oldPrice + (oldPrice * .05f);
            updatePrice.setFloat(1, newPrice);
            updatePrice.setString(2, cof);
            updatePrice.executeUpdate();
            System.out.println("New price of " + cof + " is " + newPrice);
            if (newPrice > 11.99) {
                con.rollback(save2);
            }
        }

        con.commit();

        Statement stmt = con.createStatement();
        rs = stmt.executeQuery("SELECT COF_NAME, " + "PRICE FROM COFFEES");

        System.out.println();
        while (rs.next()) {
            String name = rs.getString("COF_NAME");
            float price = rs.getFloat("PRICE");
            System.out.println("Current price of " + name + " is " + price);
        }

        con.close();

    } catch (Exception e) {
        e.printStackTrace();
    }

}

From source file:BatchUpdate.java

public static void main(String args[]) {
    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;//from   w w w.  java 2s . c om
    Statement stmt;

    try {
        Class.forName("myDriver.ClassName");
    } catch (java.lang.ClassNotFoundException e) {
        System.err.print("ClassNotFoundException: ");
        System.err.println(e.getMessage());
    }

    try {
        con = DriverManager.getConnection(url, "myLogin", "myPassword");
        stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
        con.setAutoCommit(false);
        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Amaretto', 49, 9.99, 0, 0)");
        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Hazelnut', 49, 9.99, 0, 0)");
        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Amaretto_decaf', 49, 10.99, 0, 0)");
        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Hazelnut_decaf', 49, 10.99, 0, 0)");
        int[] updateCounts = stmt.executeBatch();
        ResultSet uprs = stmt.executeQuery("SELECT * FROM COFFEES");
        System.out.println("Table COFFEES after insertion:");

        while (uprs.next()) {
            String name = uprs.getString("COF_NAME");
            int id = uprs.getInt("SUP_ID");
            float price = uprs.getFloat("PRICE");
            int sales = uprs.getInt("SALES");
            int total = uprs.getInt("TOTAL");
            System.out.print(name + " " + id + " " + price);
            System.out.println(" " + sales + " " + total);
        }
        uprs.close();
        stmt.close();
        con.close();

    } catch (BatchUpdateException b) {
        System.err.println("SQLException: " + b.getMessage());
        System.err.println("SQLState: " + b.getSQLState());
        System.err.println("Message: " + b.getMessage());
        System.err.println("Vendor: " + b.getErrorCode());
        System.err.print("Update counts: ");
        int[] updateCounts = b.getUpdateCounts();
        for (int i = 0; i < updateCounts.length; i++) {
            System.err.print(updateCounts[i] + " ");
        }

    } catch (SQLException ex) {
        System.err.println("SQLException: " + ex.getMessage());
        System.err.println("SQLState: " + ex.getSQLState());
        System.err.println("Message: " + ex.getMessage());
        System.err.println("Vendor: " + ex.getErrorCode());
    }
}

From source file:BatchUpdate.java

public static void main(String args[]) throws SQLException {

    ResultSet rs = null;/*  w w w. j  a  va  2s  .  c  om*/
    PreparedStatement ps = null;

    String url = "jdbc:mySubprotocol:myDataSource";

    Connection con;
    Statement stmt;
    try {

        Class.forName("myDriver.ClassName");

    } catch (java.lang.ClassNotFoundException e) {
        System.err.print("ClassNotFoundException: ");
        System.err.println(e.getMessage());
    }

    try {

        con = DriverManager.getConnection(url, "myLogin", "myPassword");
        con.setAutoCommit(false);

        stmt = con.createStatement();

        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Amaretto', 49, 9.99, 0, 0)");
        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Hazelnut', 49, 9.99, 0, 0)");
        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Amaretto_decaf', 49, 10.99, 0, 0)");
        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Hazelnut_decaf', 49, 10.99, 0, 0)");

        int[] updateCounts = stmt.executeBatch();
        con.commit();
        con.setAutoCommit(true);

        ResultSet uprs = stmt.executeQuery("SELECT * FROM COFFEES");

        System.out.println("Table COFFEES after insertion:");
        while (uprs.next()) {
            String name = uprs.getString("COF_NAME");
            int id = uprs.getInt("SUP_ID");
            float price = uprs.getFloat("PRICE");
            int sales = uprs.getInt("SALES");
            int total = uprs.getInt("TOTAL");
            System.out.print(name + "   " + id + "   " + price);
            System.out.println("   " + sales + "   " + total);
        }

        uprs.close();
        stmt.close();
        con.close();

    } catch (BatchUpdateException b) {
        System.err.println("-----BatchUpdateException-----");
        System.err.println("SQLState:  " + b.getSQLState());
        System.err.println("Message:  " + b.getMessage());
        System.err.println("Vendor:  " + b.getErrorCode());
        System.err.print("Update counts:  ");
        int[] updateCounts = b.getUpdateCounts();
        for (int i = 0; i < updateCounts.length; i++) {
            System.err.print(updateCounts[i] + "   ");
        }
        System.err.println("");

    } catch (SQLException ex) {
        System.err.println("-----SQLException-----");
        System.err.println("SQLState:  " + ex.getSQLState());
        System.err.println("Message:  " + ex.getMessage());
        System.err.println("Vendor:  " + ex.getErrorCode());
    }
}

From source file:TypeConcurrency.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;/*from   ww  w .  j a  v a 2  s .  c  om*/
    Statement stmt;
    try {

        Class.forName("myDriver.ClassName");

    } catch (java.lang.ClassNotFoundException e) {
        System.err.print("ClassNotFoundException: ");
        System.err.println(e.getMessage());
    }

    try {

        con = DriverManager.getConnection(url, "myLogin", "myPassword");

        stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY);

        ResultSet srs = stmt.executeQuery("SELECT * FROM COFFEES");

        int type = srs.getType();

        System.out.println("srs is type " + type);

        int concur = srs.getConcurrency();

        System.out.println("srs has concurrency " + concur);
        while (srs.next()) {
            String name = srs.getString("COF_NAME");
            int id = srs.getInt("SUP_ID");
            float price = srs.getFloat("PRICE");
            int sales = srs.getInt("SALES");
            int total = srs.getInt("TOTAL");
            System.out.print(name + "   " + id + "   " + price);
            System.out.println("   " + sales + "   " + total);
        }

        srs.close();
        stmt.close();
        con.close();

    } catch (SQLException ex) {
        System.err.println("-----SQLException-----");
        System.err.println("SQLState:  " + ex.getSQLState());
        System.err.println("Message:  " + ex.getMessage());
        System.err.println("Vendor:  " + ex.getErrorCode());
    }
}

From source file:InsertRow.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;/*from   w  w  w  . j a  va2 s  . c  om*/
    Statement stmt;
    String query = "select COF_NAME, PRICE from COFFEES";

    try {

        Class.forName("myDriver.ClassName");

    } catch (java.lang.ClassNotFoundException e) {
        System.err.print("ClassNotFoundException: ");
        System.err.println(e.getMessage());
    }

    try {

        con = DriverManager.getConnection(url, "myLogin", "myPassword");

        stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
        ResultSet uprs = stmt.executeQuery("SELECT * FROM COFFEES");

        uprs.moveToInsertRow();

        uprs.updateString("COF_NAME", "Kona");
        uprs.updateInt("SUP_ID", 150);
        uprs.updateFloat("PRICE", 10.99f);
        uprs.updateInt("SALES", 0);
        uprs.updateInt("TOTAL", 0);

        uprs.insertRow();
        uprs.beforeFirst();

        System.out.println("Table COFFEES after insertion:");
        while (uprs.next()) {
            String s = uprs.getString("COF_NAME");
            int sup = uprs.getInt("SUP_ID");
            float f = uprs.getFloat("PRICE");
            int sales = uprs.getInt("SALES");
            int t = uprs.getInt("TOTAL");
            System.out.print(s + "   " + sup + "   " + f + "   ");
            System.out.println(sales + "   " + t);
        }

        uprs.close();
        stmt.close();
        con.close();

    } catch (SQLException ex) {
        System.err.println("SQLException: " + ex.getMessage());
    }
}