Example usage for java.sql ResultSet close

Introduction

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

Prototype

void close() throws SQLException;

Source Link

Document

Releases this ResultSet object's database and JDBC resources immediately instead of waiting for this to happen when it is automatically closed.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getOracleConnection();
    String[] columnNames = { "id", "name", "content", "date_created" };
    Object[] inputValues = new Object[columnNames.length];
    inputValues[0] = new java.math.BigDecimal(100);
    inputValues[1] = new String("String Value");
    inputValues[2] = new String("This is my resume.");
    inputValues[3] = new Timestamp((new java.util.Date()).getTime());

    String insert = "insert into resume (id, name, content, date_created ) values(?, ?, ?, ?)";
    PreparedStatement pstmt = conn.prepareStatement(insert);

    pstmt.setObject(1, inputValues[0]);//  www.j ava2s. com
    pstmt.setObject(2, inputValues[1]);
    pstmt.setObject(3, inputValues[2]);
    pstmt.setObject(4, inputValues[3]);

    pstmt.executeUpdate();
    String query = "select id, name, content, date_created from resume where id=?";

    PreparedStatement pstmt2 = conn.prepareStatement(query);
    pstmt2.setObject(1, inputValues[0]);
    ResultSet rs = pstmt2.executeQuery();
    Object[] outputValues = new Object[columnNames.length];
    if (rs.next()) {
        for (int i = 0; i < columnNames.length; i++) {
            outputValues[i] = rs.getObject(i + 1);
        }
    }
    System.out.println("id=" + ((java.math.BigDecimal) outputValues[0]).toString());
    System.out.println("name=" + ((String) outputValues[1]));
    System.out.println("content=" + ((Clob) outputValues[2]));
    System.out.println("date_created=" + ((java.sql.Date) outputValues[3]).toString());

    rs.close();
    pstmt.close();
    pstmt2.close();
    conn.close();

}

---

From source file:MainClass.java

public static void main(String args[]) {
    Connection conn = null;/*from  w ww . j  av a2 s .  co  m*/
    Statement stmt = null;
    ResultSet rs = null;
    try {
        conn = getConnection();
        stmt = conn.createStatement();
        String query = "select EmployeeID, LastName, FirstName from Employees";
        rs = stmt.executeQuery(query);
        while (rs.next()) {
            System.out.println(rs.getString("EmployeeID") + " " + rs.getString("LastName") + " "
                    + rs.getString("FirstName"));
        }
    } catch (Exception e) {
        // handle the exception
        e.printStackTrace();
        System.err.println(e.getMessage());
    } finally {
        try {
            rs.close();
            stmt.close();
            conn.close();
        } catch (Exception ee) {
            ee.printStackTrace();
        }
    }
}

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From source file:GetColumnNamesFromResultSet_MySQL.java

public static void main(String[] args) {
    Connection conn = null;/*from ww w . j  a v a 2s.  c  om*/
    Statement stmt = null;
    ResultSet rs = null;
    try {
        conn = getConnection();
        // prepare query
        String query = "select id, name, age from employees";
        // create a statement
        stmt = conn.createStatement();
        // execute query and return result as a ResultSet
        rs = stmt.executeQuery(query);
        // get the column names from the ResultSet
        getColumnNames(rs);
    } catch (Exception e) {
        e.printStackTrace();
        System.exit(1);
    } finally {
        // release database resources
        try {
            rs.close();
            stmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

---

From source file:BatchUpdate.java

public static void main(String args[]) {
    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;/*from   w  ww  .jav  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_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:CountRecordsUsingPreparedStatement.java

public static void main(String[] args) {
    ResultSet rs = null;
    Connection conn = null;//from  www .  j  a  v a 2s  . co m
    PreparedStatement pstmt = null;
    try {
        conn = getConnection();
        String query = "select count(*) from tableName";
        pstmt = conn.prepareStatement(query);
        rs = pstmt.executeQuery();
        if (rs.next()) {
            int numberOfRows = rs.getInt(1);
            System.out.println("numberOfRows= " + numberOfRows);
        } else {
            System.out.println("error: could not get the record counts");
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            rs.close();
            pstmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

---

From source file:com.kylinolap.query.QueryCli.java

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

    Options options = new Options();
    options.addOption(OPTION_METADATA);/*  w  w w.j a v  a  2  s  .  c  o  m*/
    options.addOption(OPTION_SQL);

    CommandLineParser parser = new GnuParser();
    CommandLine commandLine = parser.parse(options, args);
    KylinConfig config = KylinConfig
            .createInstanceFromUri(commandLine.getOptionValue(OPTION_METADATA.getOpt()));
    String sql = commandLine.getOptionValue(OPTION_SQL.getOpt());

    Class.forName("net.hydromatic.optiq.jdbc.Driver");
    File olapTmp = OLAPSchemaFactory.createTempOLAPJson(null, config);

    Connection conn = null;
    Statement stmt = null;
    ResultSet rs = null;
    try {
        conn = DriverManager.getConnection("jdbc:optiq:model=" + olapTmp.getAbsolutePath());

        stmt = conn.createStatement();
        rs = stmt.executeQuery(sql);
        int n = 0;
        ResultSetMetaData meta = rs.getMetaData();
        while (rs.next()) {
            n++;
            for (int i = 1; i <= meta.getColumnCount(); i++) {
                System.out.println(n + " - " + meta.getColumnLabel(i) + ":\t" + rs.getObject(i));
            }
        }
    } finally {
        if (rs != null) {
            rs.close();
        }
        if (stmt != null) {
            stmt.close();
        }
        if (conn != null) {
            conn.close();
        }
    }

}

---

From source file:Main.java

public static void main(String[] args) {
    Connection conn = null;//w ww.  ja  v  a2  s .  com
    Statement stmt = null;
    try {
        // Register JDBC driver
        Class.forName(JDBC_DRIVER);

        // Open a connection
        System.out.println("Connecting to database...");
        conn = DriverManager.getConnection(DB_URL, USER, PASS);

        // Execute a query
        System.out.println("Creating statement...");
        stmt = conn.createStatement();
        String sql;
        sql = "SELECT id, first, last, age FROM Employees";
        stmt.executeUpdate(
                "CREATE TABLE Employees ( id INTEGER IDENTITY, first VARCHAR(256),  last VARCHAR(256),age INTEGER)");
        stmt.executeUpdate("INSERT INTO Employees VALUES(1,'Jack','Smith', 100)");

        ResultSet rs = stmt.executeQuery(sql);

        // Extract data from result set
        while (rs.next()) {
            // Retrieve by column name
            int id = rs.getInt("id");
            int age = rs.getInt("age");
            String first = rs.getString("first");
            String last = rs.getString("last");

            System.out.print("ID: " + id);
            System.out.print(", Age: " + age);
            System.out.print(", First: " + first);
            System.out.println(", Last: " + last);
        }
        // Clean-up environment
        rs.close();
        stmt.close();
        conn.close();
    } catch (SQLException se) {
        se.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // finally block used to close resources
        try {
            if (stmt != null)
                stmt.close();
        } catch (SQLException se2) {
        }
        try {
            if (conn != null)
                conn.close();
        } catch (SQLException se) {
            se.printStackTrace();
        }
    }
    System.out.println("Goodbye!");
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    Statement st = conn.createStatement();

    st.executeUpdate("create table survey (id int,myDate DATE );");
    String INSERT_RECORD = "insert into survey(id, myDate) values(?, ?)";

    PreparedStatement pstmt = conn.prepareStatement(INSERT_RECORD);
    pstmt.setString(1, "1");
    java.sql.Date sqlDate = new java.sql.Date(new java.util.Date().getTime());
    pstmt.setDate(2, sqlDate);//w w w.j a va  2 s  .  c o m

    pstmt.executeUpdate();

    ResultSet rs = st.executeQuery("SELECT * FROM survey");

    Calendar cal = Calendar.getInstance();

    // get the TimeZone for "America/Los_Angeles"
    TimeZone tz = TimeZone.getTimeZone("America/Los_Angeles");
    cal.setTimeZone(tz);

    while (rs.next()) {
        // the JDBC driver will use the time zone information in
        // Calendar to calculate the date, with the result that
        // the variable dateCreated contains a java.sql.Date object
        // that is accurate for "America/Los_Angeles".
        java.sql.Date dateCreated = rs.getDate(2, cal);
        System.out.println(dateCreated);
    }

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

---

From source file:Main.java

public static void main(String[] args) {
    Connection conn = null;/*from   w w  w. jav a2 s. c o m*/
    Statement stmt = null;
    try {
        // STEP 2: Register JDBC driver
        Class.forName(JDBC_DRIVER);

        // STEP 3: Open a connection
        System.out.println("Connecting to database...");
        conn = DriverManager.getConnection(DB_URL, USER, PASS);

        // STEP 4: Execute a query
        System.out.println("Creating statement...");
        stmt = conn.createStatement();
        String sql;
        sql = "SELECT id, first, last, age FROM Employees";
        stmt.executeUpdate(
                "CREATE TABLE Employees ( id INTEGER IDENTITY, first VARCHAR(256),  last VARCHAR(256),age INTEGER)");
        stmt.executeUpdate("INSERT INTO Employees VALUES(1,'Jack','Smith', 100)");

        ResultSet rs = stmt.executeQuery(sql);

        // STEP 5: Extract data from result set
        while (rs.next()) {
            // Retrieve by column name
            int id = rs.getInt("id");
            int age = rs.getInt("age");
            String first = rs.getString("first");
            String last = rs.getString("last");

            System.out.print("ID: " + id);
            System.out.print(", Age: " + age);
            System.out.print(", First: " + first);
            System.out.println(", Last: " + last);
        }
        // STEP 6: Clean-up environment
        rs.close();
        stmt.close();
        conn.close();
    } catch (SQLException se) {
        se.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // finally block used to close resources
        try {
            if (stmt != null)
                stmt.close();
        } catch (SQLException se2) {
        }
        try {
            if (conn != null)
                conn.close();
        } catch (SQLException se) {
            se.printStackTrace();
        }
    }
    System.out.println("Goodbye!");
}

---

From source file:BatchUpdate.java

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

    ResultSet rs = null;//from  w  w  w . ja va2  s .  com
    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());
    }
}

---

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