Example usage for java.sql Statement executeQuery

Introduction

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

Prototype

ResultSet executeQuery(String sql) throws SQLException;

Source Link

Document

Executes the given SQL statement, which returns a single ResultSet object.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);//from  ww  w. j a  va  2 s . c om

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);
    Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");

    // Get cursor position
    int pos = resultSet.getRow();
    boolean b = resultSet.isBeforeFirst();

    // Move cursor to the first row
    resultSet.next();

    // Get cursor position
    pos = resultSet.getRow();
    b = resultSet.isFirst();

    // Move cursor to the last row
    resultSet.last();

    // Get cursor position
    pos = resultSet.getRow();
    b = resultSet.isLast();

    // Move cursor past last row
    resultSet.afterLast();

    // Get cursor position
    pos = resultSet.getRow();
    b = resultSet.isAfterLast();

}

---

From source file:Main.java

public static void main(String args[]) throws Exception {
    Connection conn = null;/*from   w  ww.j av a2s. c o  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[] argv) throws Exception {
    Connection con = DriverManager.getConnection("jdbc:postgresql://localhost:5432/old", "user", "pass");
    Connection con1 = DriverManager.getConnection("jdbc:postgresql://localhost:5432/new", "user", "pass");

    String sql = "INSERT INTO users(" + "name," + "active," + "login," + "password)" + "VALUES(?,?,?,?)";

    Statement statement = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);

    PreparedStatement pstmt = con1.prepareStatement(sql);

    ResultSet rs = statement.executeQuery("SELECT * FROM users");
    while (rs.next()) {
        String nm = rs.getString(2);
        Boolean ac = rs.getBoolean(3);
        String log = rs.getString(4);
        String pass = rs.getString(5);
        pstmt.setString(1, nm);//ww  w  .j  av  a2  s  .  co m
        pstmt.setBoolean(2, ac);
        pstmt.setString(3, log);
        pstmt.setString(4, pass);
        pstmt.executeUpdate();
    }
    con.close();
    con1.close();
}

---

From source file:Main.java

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

    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);//from w ww.j  a v a 2 s . c  o  m

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);

    try {
        SQLWarning warning = connection.getWarnings();
        while (warning != null) {
            String message = warning.getMessage();
            String sqlState = warning.getSQLState();
            int errorCode = warning.getErrorCode();
            warning = warning.getNextWarning();
        }
        Statement stmt = connection.createStatement();
        warning = stmt.getWarnings();
        if (warning != null) {

        }
        ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");
        while (resultSet.next()) {
            warning = resultSet.getWarnings();
            if (warning != null) {
            }
        }
    } catch (SQLException e) {
    }

}

---

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 w  w .ja va2  s. c  o  m
    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[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);/*from ww w . j  ava 2  s  .  c  o  m*/

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);
    // Create a statement that will return updatable result sets
    Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);

    // Primary key must be specified so that the result set is updatable
    ResultSet resultSet = stmt.executeQuery("SELECT col_string FROM my_table");

}

---

From source file:Main.java

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

    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);/*from   w w  w . ja v a2 s  . co  m*/

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);

    Statement stmt = connection.createStatement();
    int fetchSize = stmt.getFetchSize();

    // Set the fetch size on the statement
    stmt.setFetchSize(100);

    ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");

    // Change the fetch size on the result set
    resultSet.setFetchSize(100);

}

---

From source file:Main.java

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

    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);// w w w  .ja  v  a 2s . co  m

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);

    // Get the fetch size of a statement
    Statement stmt = connection.createStatement();
    int fetchSize = stmt.getFetchSize();

    // Set the fetch size on the statement
    stmt.setFetchSize(100);

    ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");

    // Change the fetch size on the result set
    resultSet.setFetchSize(100);

}

---

From source file:movierecommend.MovieRecommend.java

public static void main(String[] args) throws ClassNotFoundException, SQLException {
    String url = "jdbc:sqlserver://localhost;databaseName=MovieDB;integratedSecurity=true";
    Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
    Connection conn = DriverManager.getConnection(url);

    Statement stm = conn.createStatement();
    ResultSet rsRecnik = stm.executeQuery("SELECT Recnik FROM Recnik WHERE (ID_Zanra = 1)"); //citam recnik iz baze za odredjeni zanr
    String recnik[] = null;//  ww w  .  java2 s.c  o m

    while (rsRecnik.next()) {
        recnik = rsRecnik.getString("Recnik").split(","); //delim recnik na reci

    }

    ResultSet rsFilmovi = stm.executeQuery(
            "SELECT TOP (200) Naziv_Filma, LemmaPlots, " + "ID_Filma FROM Film WHERE (ID_Zanra = 1)");
    List<Film> listaFilmova = new ArrayList<>();
    Film f = null;
    int rb = 0;
    while (rsFilmovi.next()) {
        f = new Film(rb, Integer.parseInt(rsFilmovi.getString("ID_Filma")), rsFilmovi.getString("Naziv_Filma"),
                rsFilmovi.getString("LemmaPlots"));
        listaFilmova.add(f);
        rb++;

    }
    //kreiranje vektorskog modela
    M = MatrixUtils.createRealMatrix(recnik.length, listaFilmova.size());
    System.out.println("Prva tezinska matrica");

    for (int i = 0; i < recnik.length; i++) {
        String recBaza = recnik[i];
        for (Film film : listaFilmova) {
            for (String lemmaRec : film.getPlotLema()) {
                if (recBaza.equals(lemmaRec)) {
                    M.setEntry(i, film.getRb(), M.getEntry(i, film.getRb()) + 1);
                }
            }
        }
    }
    //racunanje tf-idf
    System.out.println("td-idf");
    M = LSA.calculateTfIdf(M);
    System.out.println("SVD");
    //SVD
    SingularValueDecomposition svd = new SingularValueDecomposition(M);
    RealMatrix V = svd.getV();
    RealMatrix Vk = V.getSubMatrix(0, V.getRowDimension() - 1, 0, brojDimenzija - 1); //dimenzija je poslednji argument
    //kosinusna slicnost
    System.out.println("Cosin simmilarity");
    CallableStatement stmTop = conn.prepareCall("{call Dodaj_TopList(?,?,?)}");

    for (int j = 0; j < listaFilmova.size(); j++) {
        Film fl = listaFilmova.get(j);
        List<Film> lFilmova1 = new ArrayList<>();
        lFilmova1.add(listaFilmova.get(j));
        double sim = 0.0;
        for (int k = 0; k < listaFilmova.size(); k++) {
            // System.out.println(listaFilmova.size());                
            sim = LSA.cosinSim(j, k, Vk.transpose());
            listaFilmova.get(k).setSimilarity(sim);
            lFilmova1.add(listaFilmova.get(k));
        }
        Collections.sort(lFilmova1);
        for (int k = 2; k < 13; k++) {
            stmTop.setString(1, fl.getID() + "");
            stmTop.setString(2, lFilmova1.get(k).getID() + "");
            stmTop.setString(3, lFilmova1.get(k).getSimilarity() + "");
            stmTop.execute();
        }

    }

    stm.close();
    rsRecnik.close();
    rsFilmovi.close();
    conn.close();

}

---

From source file:PrintIndexedResultSet.java

public static void main(String args[]) throws Exception {
    String query = "SELECT STATE, COUNT(STATE) FROM MEMBER_PROFILES GROUP BY STATE";
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
    Connection con = DriverManager.getConnection("jdbc:odbc:Members");
    Statement stmt = con.createStatement();
    stmt.executeUpdate("CREATE INDEX STATE_INDEX ON MEMBER_PROFILES(STATE)");

    java.util.Date startTime = new java.util.Date();

    ResultSet rs = stmt.executeQuery(query);
    ResultSetMetaData md = rs.getMetaData();

    int nColumns = md.getColumnCount();
    for (int i = 1; i <= nColumns; i++) {
        System.out.print(md.getColumnLabel(i) + ((i == nColumns) ? "\n" : "\t"));
    }/*from   ww w . j a v a 2s .c  om*/

    while (rs.next()) {
        for (int i = 1; i <= nColumns; i++) {
            System.out.print(rs.getString(i) + ((i == nColumns) ? "\n" : "\t"));
        }
    }
    java.util.Date endTime = new java.util.Date();
    long elapsedTime = endTime.getTime() - startTime.getTime();
    System.out.println("Elapsed time: " + elapsedTime);

    stmt.executeUpdate("DROP INDEX MEMBER_PROFILES.STATE_INDEX");
}

---

• «
• 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
• »