Example usage for java.sql ResultSet next

Introduction

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

Prototype

boolean next() throws SQLException;

Source Link

Document

Moves the cursor forward one row from its current position.

Usage

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    if (args.length != 2) {
        System.out.println("Usage: java JavaDBDemo <Name> <Address>");
        System.exit(1);//from  w w  w.  ja  v  a2  s  .c  o  m
    }
    String driver = "org.apache.derby.jdbc.EmbeddedDriver";
    String dbName = "AddressBookDB";
    String connectionURL = "jdbc:derby:" + dbName + ";create=true";
    String createString = "CREATE TABLE ADDRESSBOOKTbl (NAME VARCHAR(32) NOT NULL, ADDRESS VARCHAR(50) NOT NULL)";
    Class.forName(driver);

    conn = DriverManager.getConnection(connectionURL);

    Statement stmt = conn.createStatement();
    stmt.executeUpdate(createString);

    PreparedStatement psInsert = conn.prepareStatement("insert into ADDRESSBOOKTbl values (?,?)");

    psInsert.setString(1, args[0]);
    psInsert.setString(2, args[1]);

    psInsert.executeUpdate();

    Statement stmt2 = conn.createStatement();
    ResultSet rs = stmt2.executeQuery("select * from ADDRESSBOOKTbl");
    System.out.println("Addressed present in your Address Book\n\n");
    int num = 0;

    while (rs.next()) {
        System.out.println(++num + ": Name: " + rs.getString(1) + "\n Address" + rs.getString(2));
    }
    rs.close();
}

---

From source file:TransactionPairs.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con = null;//w ww.j a va2 s  . c  o  m
    Statement stmt;
    PreparedStatement updateSales;
    PreparedStatement updateTotal;
    String updateString = "update COFFEES " + "set SALES = ? where COF_NAME = ?";

    String updateStatement = "update COFFEES " + "set TOTAL = TOTAL + ? where COF_NAME = ?";
    String query = "select COF_NAME, SALES, TOTAL 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");

        updateSales = con.prepareStatement(updateString);
        updateTotal = con.prepareStatement(updateStatement);
        int[] salesForWeek = { 175, 150, 60, 155, 90 };
        String[] coffees = { "Colombian", "French_Roast", "Espresso", "Colombian_Decaf", "French_Roast_Decaf" };
        int len = coffees.length;
        con.setAutoCommit(false);
        for (int i = 0; i < len; i++) {
            updateSales.setInt(1, salesForWeek[i]);
            updateSales.setString(2, coffees[i]);
            updateSales.executeUpdate();

            updateTotal.setInt(1, salesForWeek[i]);
            updateTotal.setString(2, coffees[i]);
            updateTotal.executeUpdate();
            con.commit();
        }

        con.setAutoCommit(true);

        updateSales.close();
        updateTotal.close();

        stmt = con.createStatement();
        ResultSet rs = stmt.executeQuery(query);

        while (rs.next()) {
            String c = rs.getString("COF_NAME");
            int s = rs.getInt("SALES");
            int t = rs.getInt("TOTAL");
            System.out.println(c + "     " + s + "    " + t);
        }

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

    } catch (SQLException ex) {
        System.err.println("SQLException: " + ex.getMessage());
        if (con != null) {
            try {
                System.err.print("Transaction is being ");
                System.err.println("rolled back");
                con.rollback();
            } catch (SQLException excep) {
                System.err.print("SQLException: ");
                System.err.println(excep.getMessage());
            }
        }
    }
}

---

From source file:Main.java

public static void main(String args[]) throws Exception {
    Connection conn = null;//  ww w.  java 2 s  .co  m
    Statement stmt = null;
    ResultSet rs = null;

    conn = getConnection();
    stmt = conn.createStatement();
    String excelQuery = "select * from [Sheet1$]";
    rs = stmt.executeQuery(excelQuery);

    while (rs.next()) {
        System.out.println(rs.getString("FirstName") + " " + rs.getString("LastName"));
    }

    rs.close();
    stmt.close();
    conn.close();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    ResultSet rsColumns = null;
    DatabaseMetaData meta = conn.getMetaData();
    rsColumns = meta.getColumns(null, null, "survey", null);
    while (rsColumns.next()) {
        String columnName = rsColumns.getString("COLUMN_NAME");
        System.out.println("column name=" + columnName);
        String columnType = rsColumns.getString("TYPE_NAME");
        System.out.println("type:" + columnType);
        int size = rsColumns.getInt("COLUMN_SIZE");
        System.out.println("size:" + size);
        int nullable = rsColumns.getInt("NULLABLE");
        if (nullable == DatabaseMetaData.columnNullable) {
            System.out.println("nullable true");
        } else {/*w ww . j a v a 2  s  . c  o m*/
            System.out.println("nullable false");
        }
        int position = rsColumns.getInt("ORDINAL_POSITION");
        System.out.println("position:" + position);

    }

    st.close();
    conn.close();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    try {/*from  ww  w.j  av a 2s .c om*/
        String url = "jdbc:odbc:yourdatabasename";
        String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
        String user = "guest";
        String password = "guest";

        FileInputStream fis = new FileInputStream("sometextfile.txt");

        Class.forName(driver);
        Connection connection = DriverManager.getConnection(url, user, password);
        Statement createTable = connection.createStatement();
        createTable.executeUpdate("CREATE TABLE source_code (name char(20), source LONGTEXT)");
        String ins = "INSERT INTO source_code VALUES(?,?)";
        PreparedStatement statement = connection.prepareStatement(ins);

        statement.setString(1, "TryInputStream2");
        statement.setAsciiStream(2, fis, fis.available());

        int rowsUpdated = statement.executeUpdate();
        System.out.println("Rows affected: " + rowsUpdated);
        Statement getCode = connection.createStatement();
        ResultSet theCode = getCode.executeQuery("SELECT name,source FROM source_code");
        BufferedReader reader = null;
        String input = null;

        while (theCode.next()) {
            reader = new BufferedReader(new InputStreamReader(theCode.getAsciiStream(2)));
            while ((input = reader.readLine()) != null) {
                System.out.println(input);
            }
        }
        connection.close();
    } catch (Exception e) {
        System.err.println(e);
    }
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    try {/*w ww.  ja  v a  2  s  .  com*/
        String url = "jdbc:odbc:yourdatabasename";
        String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
        String user = "guest";
        String password = "guest";

        FileInputStream fis = new FileInputStream("sometextfile.txt");

        Class.forName(driver);
        Connection connection = DriverManager.getConnection(url, user, password);
        Statement createTable = connection.createStatement();
        createTable.executeUpdate("CREATE TABLE source_code (name char(20), source LONGTEXT)");
        String ins = "INSERT INTO source_code VALUES(?,?)";
        PreparedStatement statement = connection.prepareStatement(ins);

        statement.setString(1, "TryInputStream2");
        statement.setAsciiStream(2, fis, fis.available());

        int rowsUpdated = statement.executeUpdate();
        System.out.println("Rows affected: " + rowsUpdated);
        Statement getCode = connection.createStatement();
        ResultSet theCode = getCode.executeQuery("SELECT name,source FROM source_code");
        BufferedReader reader = null;
        String input = null;

        while (theCode.next()) {
            reader = new BufferedReader(new InputStreamReader(theCode.getAsciiStream("source")));
            while ((input = reader.readLine()) != null) {
                System.out.println(input);
            }
        }
        connection.close();
    } catch (Exception e) {
        System.err.println(e);
    }
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    DatabaseMetaData meta = conn.getMetaData();
    // The '_' character represents any single character.
    // The '%' character represents any sequence of zero
    // or more characters.
    ResultSet rs = meta.getBestRowIdentifier(conn.getCatalog(), null, "survey",
            DatabaseMetaData.bestRowTemporary, false);
    while (rs.next()) {

        short actualScope = rs.getShort("SCOPE");
        String columnName = rs.getString("COLUMN_NAME");
        int dataType = rs.getInt("DATA_TYPE");
        String typeName = rs.getString("TYPE_NAME");
        int columnSize = rs.getInt("COLUMN_SIZE");
        short decimalDigits = rs.getShort("DECIMAL_DIGITS");
        short pseudoColumn = rs.getShort("PSEUDO_COLUMN");

        System.out.println("tableName=survey");
        System.out.println("scope=" + actualScope);
        System.out.println("columnName=" + columnName);
        System.out.println("dataType=" + dataType);
        System.out.println("typeName" + typeName);
        System.out.println("columnSize" + columnSize);
        System.out.println("decimalDigits" + decimalDigits);
        System.out.println("pseudoColumn" + pseudoColumn);
    }/*from   w  ww.  j a  v  a2 s  .co m*/

    st.close();
    conn.close();
}

---

From source file:InsertSuppliers.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;/*from   ww w .jav  a2  s  . c o m*/
    Statement stmt;
    String query = "select SUP_NAME, SUP_ID from SUPPLIERS";

    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 SUPPLIERS " + "values(49, 'Superior Coffee', '1 Party Place', "
                + "'Mendocino', 'CA', '95460')");

        stmt.executeUpdate("insert into SUPPLIERS " + "values(101, 'Acme, Inc.', '99 Market Street', "
                + "'Groundsville', 'CA', '95199')");

        stmt.executeUpdate("insert into SUPPLIERS " + "values(150, 'The High Ground', '100 Coffee Lane', "
                + "'Meadows', 'CA', '93966')");

        ResultSet rs = stmt.executeQuery(query);

        System.out.println("Suppliers and their ID Numbers:");
        while (rs.next()) {
            String s = rs.getString("SUP_NAME");
            int n = rs.getInt("SUP_ID");
            System.out.println(s + "   " + n);
        }

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

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

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getOracleConnection();
    Statement stmt = null;/*  ww w. j a  va2  s  .  c  om*/
    ResultSet rs = null;
    stmt = conn.createStatement();
    //only for Oracle
    rs = stmt.executeQuery("select object_name from user_objects where object_type = 'VIEW'");

    while (rs.next()) {
        String tableName = rs.getString(1);
        System.out.println("viewName=" + tableName);
    }

    stmt.close();
    conn.close();
}

---

From source file:InsertCoffees.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;//ww  w .ja  v  a2s .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());
    }
}

---

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