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:DemoDisplayBlobFromDatabase.java

public static void main(String args[]) throws Exception {
    Connection conn = null;/*from   www .ja v  a  2  s  . c o m*/
    ResultSet rs = null;
    PreparedStatement pstmt = null;
    String query = "SELECT blob_column FROM blob_table WHERE id = ?";

    try {
        conn = getConnection();
        pstmt = conn.prepareStatement(query);
        pstmt.setString(1, "0001");
        rs = pstmt.executeQuery();
        rs.next();
        // materialize binary data onto client
        java.sql.Blob blob = rs.getBlob(1);
    } finally {
        rs.close();
        pstmt.close();
        conn.close();
    }
}

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From source file:Main.java

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

        Class.forName(driver);
        Connection connection = DriverManager.getConnection(url, user, password);
        Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
                ResultSet.CONCUR_READ_ONLY);

        String sqlQuery = "SELECT EMPNO, EName, Job, MGR, HIREDATE FROM EMP";
        ResultSet rs = stmt.executeQuery(sqlQuery);
        rs.last();

        // Move the cursor backwards through the ResultSet
        while (rs.previous()) {
            String nbr = rs.getString(1);
            String name = rs.getString(2);
            String job = rs.getString(3);
            String mgr = rs.getString(4);
            Timestamp hireDate = rs.getTimestamp(5);
            System.out.println(name);
        }

        rs.close();
        stmt.close();
        connection.close();
    } catch (Exception e) {
        System.err.println(e);
    }
}

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From source file:ResultSetUpdate.java

public static void main(String args[]) {

    String url;//from w  w w  .  j  a  v  a 2s  .  c om
    url = "jdbc:odbc:UserDB";

    String user, pass;
    user = "ian";
    pass = "stjklsq";

    Connection con;
    Statement stmt;
    ResultSet rs;

    try {
        con = DriverManager.getConnection(url, user, pass);
        stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
        rs = stmt.executeQuery("SELECT * FROM Users where nick=\"ian\"");

        // Get the resultset ready, update the passwd field, commit
        rs.first();
        rs.updateString("password", "unguessable");
        rs.updateRow();

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

---

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

    ResultSet rs = DriverManager.getConnection("jdbc:odbc:employee_xls").createStatement()
            .executeQuery("Select * from [Sheet1$]");

    ResultSetMetaData rsmd = rs.getMetaData();
    int numberOfColumns = rsmd.getColumnCount();

    System.out.println("No of cols " + numberOfColumns);
    while (rs.next()) {
        for (int i = 1; i <= numberOfColumns; i++) {
            String columnValue = rs.getString(i);
            System.out.println(columnValue);
        }// w w  w.j a v  a 2 s.  c  om
    }
    rs.close();
}

---

From source file:Main.java

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

    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");
    st.executeUpdate("insert into survey (id,name ) values (2,null)");
    st.executeUpdate("insert into survey (id,name ) values (3,'Tom')");
    st = conn.createStatement();//  ww  w. j a v a 2s .com
    ResultSet rs = st.executeQuery("SELECT * FROM survey");

    ResultSetMetaData rsMetaData = rs.getMetaData();
    int numberOfColumns = rsMetaData.getColumnCount();

    // get the column names; column indexes start from 1
    for (int i = 1; i < numberOfColumns + 1; i++) {
        String columnName = rsMetaData.getColumnName(i);
        String tableName = rsMetaData.getTableName(i);
        System.out.println(columnName);
        System.out.println(tableName);
    }

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

}

---

From source file:Main.java

public static void main(String[] args) {
    Connection conn = null;// w  w w .j a va 2 s .  c  o  m
    Statement stmt = null;
    try {
        Class.forName(JDBC_DRIVER);
        conn = DriverManager.getConnection(DB_URL, USER, PASS);
        stmt = conn.createStatement();
        String sql = "SELECT id, first, last, age FROM Employees";
        ResultSet rs = stmt.executeQuery(sql);
        while (rs.next()) {
            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);
        }
        rs.close();
        stmt.close();
        conn.close();
    } catch (SQLException se) {
        se.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            if (stmt != null)
                stmt.close();
            if (conn != null)
                conn.close();
        } catch (SQLException se) {
            se.printStackTrace();
        }
    }
}

---

From source file:Main.java

public static void main(String[] args) throws SQLException {
    // DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
    Connection conn = DriverManager.getConnection("jdbc:oracle:oci8:@yourDB", "scott", "tiger");

    Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);

    stmt.setFetchSize(1);/*from w  ww .j  ava  2s .com*/
    ResultSet rset = stmt.executeQuery("select EMPNO, ENAME, SAL from EMP");
    showProperty(rset);

    while (rset.next()) {
        System.out.println(rset.getInt(1) + " " + rset.getString(2) + " " + rset.getInt(3));
    }
    doSomeChanges(conn);
    // Place the cursor before the first row
    rset.beforeFirst();

    while (rset.next()) {
        System.out.println(rset.getInt(1) + " " + rset.getString(2) + " " + rset.getInt(3));
    }
    rset.close();
    stmt.close();
    cleanup(conn);
    conn.close();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = null;/*  w  w  w  . j av a 2 s .  co m*/
    Statement stmt = null;

    Class.forName(JDBC_DRIVER);
    conn = DriverManager.getConnection(DB_URL, USER, PASS);
    System.out.println("Deleting database...");
    stmt = conn.createStatement();

    conn = DriverManager.getConnection(DB_URL, USER, PASS);

    stmt = conn.createStatement();
    String sql = "SELECT id, first, last, age FROM Person";
    ResultSet rs = stmt.executeQuery(sql);
    while (rs.next()) {
        // Retrieve by column name
        int id = rs.getInt("id");
        int age = rs.getInt("age");
        String first = rs.getString("firstName");
        String last = rs.getString("lastName");

        // Display values
        System.out.print("ID: " + id);
        System.out.print(", Age: " + age);
        System.out.print(", First: " + first);
        System.out.println(", Last: " + last);
    }
    rs.close();
    stmt.close();
    conn.close();
}

---

From source file:Main.java

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

    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");
    st.executeUpdate("insert into survey (id,name ) values (2,null)");
    st = conn.createStatement();//from   www . j  a v a  2  s.com
    ResultSet rs = st.executeQuery("SELECT * FROM survey");

    // extract data from the ResultSet
    while (rs.next()) {
        int id = rs.getInt(1);
        System.out.println("id=" + id);
        String name = rs.getString(2);
        System.out.println("name=" + name);
        if (rs.wasNull()) {
            System.out.println("name is null");
        } else {
            System.out.println("name is not null");
        }
        System.out.println("---------------");
    }
    rs.close();
    st.close();
    conn.close();

}

---

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,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");
    st.executeUpdate("insert into survey (id,name ) values (2,null)");
    st = conn.createStatement();//from   w  w w .j a va  2  s.c  o  m
    ResultSet rs = st.executeQuery("SELECT * FROM survey");

    // extract data from the ResultSet
    while (rs.next()) {
        int id = rs.getInt(1);
        System.out.println("id=" + id);
        String name = rs.getString(2);
        System.out.println("name=" + name);
        if (rs.wasNull()) {
            System.out.println("name is null");
        } else {
            System.out.println("name is not null");
        }
        System.out.println("---------------");
    }
    rs.close();
    st.close();
    conn.close();

}

---

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