Example usage for java.sql PreparedStatement executeQuery

Introduction

In this page you can find the example usage for java.sql PreparedStatement executeQuery.

Prototype

ResultSet executeQuery() throws SQLException;

Source Link

Document

Executes the SQL query in this PreparedStatement object and returns the ResultSet object generated by the query.

Usage

From source file:Main.java

public static void main(String args[]) throws Exception {
    Connection con = null;//from   ww w . j a  v  a2  s  . c  om
    Class.forName("oracle.jdbc.driver.OracleDriver");
    con = DriverManager.getConnection("jdbc:oracle:thin:@192.201.32.92:1521:psprd1", "username", "password");
    String query = null;
    ResultSet rset = null;
    query = "UPDATE t1 " + " SET id = ?";
    PreparedStatement stmt = con.prepareStatement(query);
    // stmt.setInt(paramIndex++, null);
    stmt.setNull(1, java.sql.Types.INTEGER);
    stmt.executeUpdate();
    stmt.close();
    query = "select id from t1 ";
    stmt = con.prepareStatement(query);
    rset = stmt.executeQuery();
    rset.next();
    System.out.println(rset.getString("id"));
    rset.close();
    stmt.close();
    con.close();
}

---

From source file:DemoDisplayBinaryDataFromDatabase.java

public static void main(String args[]) throws Exception {
    Connection conn = null;/*from  w w  w .j  a va  2s .  co  m*/
    ResultSet rs = null;
    PreparedStatement pstmt = null;
    String query = "SELECT raw_column, long_raw_column FROM binary_table WHERE id = ?";
    try {
        conn = getConnection();
        Object[] results = new Object[2];
        pstmt = conn.prepareStatement(query);
        pstmt.setString(1, "0001");
        rs = pstmt.executeQuery();
        rs.next();
        // materialize binary data onto client
        results[0] = rs.getBytes("RAW_COLUMN");
        results[1] = rs.getBytes("LONG_RAW_COLUMN");
    } finally {
        rs.close();
        pstmt.close();
        conn.close();
    }
}

---

From source file:SelectRecordsUsingPreparedStatement.java

public static void main(String[] args) {
    ResultSet rs = null;//from www.  j  a va 2s. c o  m
    Connection conn = null;
    PreparedStatement pstmt = null;
    try {
        conn = getConnection();
        String query = "select deptno, deptname, deptloc from dept where deptno > ?";

        pstmt = conn.prepareStatement(query); // create a statement
        pstmt.setInt(1, 1001); // set input parameter
        rs = pstmt.executeQuery();
        // extract data from the ResultSet
        while (rs.next()) {
            int dbDeptNumber = rs.getInt(1);
            String dbDeptName = rs.getString(2);
            String dbDeptLocation = rs.getString(3);
            System.out.println(dbDeptNumber + "\t" + dbDeptName + "\t" + dbDeptLocation);
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            rs.close();
            pstmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

---

From source file:DemoPreparedStatementSetClob.java

public static void main(String[] args) throws Exception {
    String id = "0001";
    String newID = "0002";

    ResultSet rs = null;//from  w w  w. java 2 s.  com
    Connection conn = null;
    PreparedStatement pstmt = null;
    try {
        conn = getConnection();
        // begin transaction
        conn.setAutoCommit(false);
        String query1 = "select clob_column from clob_table where id = ?";
        pstmt = conn.prepareStatement(query1);
        pstmt.setString(1, id);
        rs = pstmt.executeQuery();
        rs.next();
        java.sql.Clob clob = (java.sql.Clob) rs.getObject(1);
        String query = "insert into clob_table(id, clob_column) values(?, ?)";
        pstmt = conn.prepareStatement(query);
        pstmt.setString(1, newID);
        pstmt.setClob(2, clob);

        int rowCount = pstmt.executeUpdate();
        System.out.println("rowCount=" + rowCount);
        conn.commit();
    } finally {
        rs.close();
        pstmt.close();
        conn.close();
    }
}

---

From source file:SetSavepoint.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";

    try {//from  www . jav  a2s .  com

        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:DemoPreparedStatementSetClob.java

public static void main(String[] args) throws Exception {
    String id = "0001";
    String newID = "0002";

    ResultSet rs = null;// www.  ja v  a2  s  .c  o  m
    Connection conn = null;
    PreparedStatement pstmt = null;
    try {
        conn = getConnection();
        // begin transaction
        conn.setAutoCommit(false);
        String query1 = "select clob_column from clob_table where id = ?";
        pstmt = conn.prepareStatement(query1);
        pstmt.setString(1, id);
        rs = pstmt.executeQuery();
        rs.next();
        java.sql.Clob clob = (java.sql.Clob) rs.getObject(1);
        String query = "insert into clob_table(id, clob_column) values(?, ?)";
        pstmt = conn.prepareStatement(query);
        pstmt.setString(1, newID);
        pstmt.setClob(2, clob);

        // execute query, and return number of rows created
        int rowCount = pstmt.executeUpdate();
        System.out.println("rowCount=" + rowCount);
        // end transaction
        conn.commit();
    } finally {
        rs.close();
        pstmt.close();
        conn.close();
    }
}

---

From source file:Batch.java

static public void main(String[] args) {
    Connection conn = null;//from   w  ww  . ja v a2s . co m

    try {
        ArrayList breakable = new ArrayList();
        PreparedStatement stmt;
        Iterator users;
        ResultSet rs;

        Class.forName(args[0]).newInstance();
        conn = DriverManager.getConnection(args[1], args[2], args[3]);
        stmt = conn.prepareStatement("SELECT user_id, password " + "FROM user");
        rs = stmt.executeQuery();
        while (rs.next()) {
            String uid = rs.getString(1);
            String pw = rs.getString(2);

            // Assume PasswordCracker is some class that provides
            // a single static method called crack() that attempts
            // to run password cracking routines on the password
            //                if( PasswordCracker.crack(uid, pw) ) {
            //                  breakable.add(uid);
            //            }
        }
        stmt.close();
        if (breakable.size() < 1) {
            return;
        }
        stmt = conn.prepareStatement("UPDATE user " + "SET bad_password = 'Y' " + "WHERE uid = ?");
        users = breakable.iterator();
        while (users.hasNext()) {
            String uid = (String) users.next();

            stmt.setString(1, uid);
            stmt.addBatch();
        }
        stmt.executeBatch();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (conn != null) {
            try {
                conn.close();
            } catch (Exception e) {
            }
        }
    }
}

---

From source file:DemoUpdatableResultSet.java

public static void main(String[] args) {
    ResultSet rs = null;//from  ww w  .  ja v a 2s  .  c o  m
    Connection conn = null;
    PreparedStatement pstmt = null;
    try {
        conn = getConnection();
        String query = "select id, name, age from employees where age > ?";
        pstmt = conn.prepareStatement(query, ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
        pstmt.setInt(1, 20); // set input values
        rs = pstmt.executeQuery(); // create an updatable ResultSet
                                   // update a column value in the current row.
        rs.absolute(2); // moves the cursor to the 2nd row of rs
        rs.updateString("name", "newName"); // updates the 'name' column of row 2 to newName
        rs.updateRow(); // updates the row in the data source
                        // insert column values into the insert row.
        rs.moveToInsertRow(); // moves cursor to the insert row
        rs.updateInt(1, 1234); // 1st column id=1234
        rs.updateString(2, "newName"); // updates the 2nd column
        rs.updateInt(3, 99); // updates the 3rd column to 99
        rs.insertRow();
        rs.moveToCurrentRow();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            rs.close();
            pstmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

---

From source file:InsertStores.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;//ww  w .j  a  v a 2s .  c  o  m
    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();
        con.setAutoCommit(false);

        String insertStore1 = "INSERT INTO STORES VALUES (" + "100001, "
                + "ADDRESS(888, 'Main_Street', 'Rancho_Alegre', " + "'CA', '94049'), "
                + "COF_ARRAY('Colombian', 'French_Roast', 'Espresso', "
                + "'Colombian_Decaf', 'French_Roast_Decaf'), "
                + "(SELECT OID FROM MANAGERS WHERE MGR_ID = 000001))";

        stmt.addBatch(insertStore1);

        String insertStore2 = "INSERT INTO STORES VALUES (" + "100002, "
                + "ADDRESS(1560, 'Alder', 'Ochos_Pinos', " + "'CA', '94049'), "
                + "COF_ARRAY('Colombian', 'French_Roast', 'Espresso', "
                + "'Colombian_Decaf', 'French_Roast_Decaf', " + "'Kona', 'Kona_Decaf'), "
                + "(SELECT OID FROM MANAGERS WHERE MGR_ID = 000001))";

        stmt.addBatch(insertStore2);

        String insertStore3 = "INSERT INTO STORES VALUES (" + "100003, "
                + "ADDRESS(4344, 'First_Street', 'Verona', " + "'CA', '94545'), "
                + "COF_ARRAY('Colombian', 'French_Roast', 'Espresso', "
                + "'Colombian_Decaf', 'French_Roast_Decaf', " + "'Kona', 'Kona_Decaf'), "
                + "(SELECT OID FROM MANAGERS WHERE MGR_ID = 000002))";

        stmt.addBatch(insertStore3);

        String insertStore4 = "INSERT INTO STORES VALUES (" + "100004, "
                + "ADDRESS(321, 'Sandy_Way', 'La_Playa', " + "'CA', '94544'), "
                + "COF_ARRAY('Colombian', 'French_Roast', 'Espresso', "
                + "'Colombian_Decaf', 'French_Roast_Decaf', " + "'Kona', 'Kona_Decaf'), "
                + "(SELECT OID FROM MANAGERS WHERE MGR_ID = 000002))";

        stmt.addBatch(insertStore4);

        String insertStore5 = "INSERT INTO STORES VALUES (" + "100005, "
                + "ADDRESS(1000, 'Clover_Road', 'Happyville', " + "'CA', '90566'), "
                + "COF_ARRAY('Colombian', 'French_Roast', 'Espresso', "
                + "'Colombian_Decaf', 'French_Roast_Decaf'), "
                + "(SELECT OID FROM MANAGERS WHERE MGR_ID = 000003))";

        stmt.addBatch(insertStore5);

        int[] updateCounts = stmt.executeBatch();

        ResultSet rs = stmt.executeQuery("SELECT * FROM STORES");

        System.out.println("Table STORES after insertion:");
        System.out.println("STORE_NO  LOCATION          COF_TYPE     MGR");
        while (rs.next()) {
            int storeNo = rs.getInt("STORE_NO");
            Struct location = (Struct) rs.getObject("LOCATION");
            Object[] locAttrs = location.getAttributes();
            Array coffeeTypes = rs.getArray("COF_TYPE");
            String[] cofTypes = (String[]) coffeeTypes.getArray();

            Ref managerRef = rs.getRef("MGR");
            PreparedStatement pstmt = con.prepareStatement("SELECT MANAGER FROM MANAGERS WHERE OID = ?");
            pstmt.setRef(1, managerRef);
            ResultSet rs2 = pstmt.executeQuery();
            rs2.next();
            Struct manager = (Struct) rs2.getObject("MANAGER");
            Object[] manAttrs = manager.getAttributes();

            System.out.print(storeNo + "   ");
            System.out.print(locAttrs[0] + " " + locAttrs[1] + " " + locAttrs[2] + ", " + locAttrs[3] + "  "
                    + locAttrs[4] + " ");
            for (int i = 0; i < cofTypes.length; i++)
                System.out.print(cofTypes[i] + " ");
            System.out.println(manAttrs[1] + ", " + manAttrs[2]);

            rs2.close();
            pstmt.close();
        }

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

---

From source file:DemoPreparedStatementSetBlob.java

public static void main(String[] args) throws Exception {
    Connection conn = null;//from ww w . j av a  2  s. c om
    PreparedStatement pstmt = null;
    ResultSet rs = null;
    java.sql.Blob blob = null;
    try {
        conn = getConnection();
        // prepare blob object from an existing binary column
        pstmt = conn.prepareStatement("select photo from my_pictures where id = ?");
        pstmt.setString(1, "0001");
        rs = pstmt.executeQuery();
        rs.next();
        blob = rs.getBlob(1);

        // prepare SQL query for inserting a new row using setBlob()
        String query = "insert into blob_table(id, blob_column) values(?, ?)";
        // begin transaction
        conn.setAutoCommit(false);

        pstmt = conn.prepareStatement(query);
        pstmt.setString(1, "0002");
        pstmt.setBlob(2, blob);

        int rowCount = pstmt.executeUpdate();
        System.out.println("rowCount=" + rowCount);
        // end transaction
        conn.commit();
    } finally {
        rs.close();
        pstmt.close();
        conn.close();
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »