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:TypeConcurrency.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;//w  w  w  .j  a  va2  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_READ_ONLY);

        ResultSet srs = stmt.executeQuery("SELECT * FROM COFFEES");

        int type = srs.getType();

        System.out.println("srs is type " + type);

        int concur = srs.getConcurrency();

        System.out.println("srs has concurrency " + concur);
        while (srs.next()) {
            String name = srs.getString("COF_NAME");
            int id = srs.getInt("SUP_ID");
            float price = srs.getFloat("PRICE");
            int sales = srs.getInt("SALES");
            int total = srs.getInt("TOTAL");
            System.out.print(name + "   " + id + "   " + price);
            System.out.println("   " + sales + "   " + total);
        }

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

    } 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());
    }
}

---

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);// ww  w.  j av  a 2  s  . com

    pstmt.executeUpdate();

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

    ResultSetMetaData rsmd = rs.getMetaData();

    int numCols = rsmd.getColumnCount();

    System.out.print("\t");
    for (int i = 1; i <= numCols; i++) {
        System.out.println(rsmd.getColumnLabel(i));
    }

    System.out.print("\nAuto Increment\t");
    for (int i = 1; i <= numCols; i++) {
        System.out.println(rsmd.isAutoIncrement(i));
    }
    for (int i = 1; i <= numCols; i++) {

        System.out.println(rsmd.isCaseSensitive(i));
    }
    System.out.print("\nSearchable\t");
    for (int i = 1; i <= numCols; i++) {

        System.out.println(rsmd.isSearchable(i));
    }
    System.out.print("\nCurrency\t");
    for (int i = 1; i <= numCols; i++) {
        System.out.println(rsmd.isCurrency(i));
    }
    System.out.print("\nAllows nulls\t");
    for (int i = 1; i <= numCols; i++) {

        System.out.println(rsmd.isNullable(i));
    }
    System.out.print("\nSigned\t");
    for (int i = 1; i <= numCols; i++) {

        System.out.println(rsmd.isSigned(i));
    }
    System.out.print("\nRead only\t");
    for (int i = 1; i <= numCols; i++) {

        System.out.println(rsmd.isReadOnly(i));
    }
    System.out.print("\nWritable\t");
    for (int i = 1; i <= numCols; i++) {

        System.out.print(rsmd.isWritable(i));
    }
    System.out.print("\nDefinitely Writable\t");
    for (int i = 1; i <= numCols; i++) {

        System.out.println(rsmd.isDefinitelyWritable(i));
    }

    conn.close();
}

---

From source file:com.jt.dbcp.example.ManualPoolingDataSourceExample.java

public static void main(String[] args) throws SQLException {
    ///*from www. j av  a 2s.co  m*/
    // First we load the underlying JDBC driver.
    // You need this if you don't use the jdbc.drivers
    // system property.
    //
    System.out.println("Loading underlying JDBC driver.");
    try {
        Class.forName("com.mysql.jdbc.Driver");
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }
    System.out.println("Done.");

    //
    // Then, we set up the PoolingDataSource.
    // Normally this would be handled auto-magically by
    // an external configuration, but in this example we'll
    // do it manually.
    //
    System.out.println("Setting up data source.");
    DataSource dataSource = setupDataSource(args[0]);
    System.out.println("Done.");

    //
    // Now, we can use JDBC DataSource as we normally would.
    //
    Connection conn = null;
    Statement stmt = null;
    ResultSet rset = null;

    try {
        System.out.println("Creating connection.");
        conn = dataSource.getConnection();
        System.out.println("Creating statement.");
        stmt = conn.createStatement();
        System.out.println("Executing statement.");
        rset = stmt.executeQuery(args[1]);
        System.out.println("Results:");
        int numcols = rset.getMetaData().getColumnCount();
        int count = 0;
        while (rset.next()) {
            count++;
            if (count == 10) {
                break;
            }
            for (int i = 1; i <= numcols; i++) {
                System.out.print("\t" + rset.getString(i));
            }
            System.out.println("");
        }
        printDataSourceStats(dataSource);
    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        try {
            if (rset != null)
                rset.close();
        } catch (Exception e) {
        }
        try {
            if (stmt != null)
                stmt.close();
        } catch (Exception e) {
        }
        try {
            if (conn != null)
                conn.close();
        } catch (Exception e) {
        }
        //            shutdownDataSource(dataSource);
    }
}

---

From source file:InsertRows.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;/*  w  w w  .ja v  a  2 s  .  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(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);

        ResultSet uprs = stmt.executeQuery("SELECT * FROM COFFEES");

        uprs.moveToInsertRow();

        uprs.updateString("COF_NAME", "Kona");
        uprs.updateInt("SUP_ID", 150);
        uprs.updateFloat("PRICE", 10.99f);
        uprs.updateInt("SALES", 0);
        uprs.updateInt("TOTAL", 0);

        uprs.insertRow();

        uprs.updateString("COF_NAME", "Kona_Decaf");
        uprs.updateInt("SUP_ID", 150);
        uprs.updateFloat("PRICE", 11.99f);
        uprs.updateInt("SALES", 0);
        uprs.updateInt("TOTAL", 0);

        uprs.insertRow();

        uprs.beforeFirst();

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

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();

    Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCL", "yourName", "mypwd");

    Statement stmt = conn.createStatement();

    createBlobClobTables(stmt);/*from w  w  w .  java  2s .  c o m*/

    PreparedStatement pstmt = conn.prepareStatement("INSERT INTO BlobClob VALUES(40,?,?)");

    File file = new File("blob.txt");
    FileInputStream fis = new FileInputStream(file);
    pstmt.setBinaryStream(1, fis, (int) file.length());

    file = new File("clob.txt");
    fis = new FileInputStream(file);
    pstmt.setAsciiStream(2, fis, (int) file.length());
    fis.close();

    pstmt.execute();

    ResultSet rs = stmt.executeQuery("SELECT * FROM BlobClob WHERE id = 40");
    rs.next();

    java.sql.Blob blob = rs.getBlob(2);
    java.sql.Clob clob = rs.getClob(3);

    byte blobVal[] = new byte[(int) blob.length()];
    InputStream blobIs = blob.getBinaryStream();
    blobIs.read(blobVal);
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    bos.write(blobVal);
    blobIs.close();

    char clobVal[] = new char[(int) clob.length()];
    Reader r = clob.getCharacterStream();
    r.read(clobVal);
    StringWriter sw = new StringWriter();
    sw.write(clobVal);

    r.close();
    conn.close();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();

    Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCL", "yourName", "mypwd");

    Statement stmt = conn.createStatement();

    createBlobClobTables(stmt);//from   www  .  j a  va2  s. com

    PreparedStatement pstmt = conn.prepareStatement("INSERT INTO BlobClob VALUES(40,?,?)");

    File file = new File("blob.txt");
    FileInputStream fis = new FileInputStream(file);
    pstmt.setBinaryStream(1, fis, (int) file.length());

    file = new File("clob.txt");
    fis = new FileInputStream(file);
    pstmt.setAsciiStream(2, fis, (int) file.length());
    fis.close();

    pstmt.execute();

    ResultSet rs = stmt.executeQuery("SELECT * FROM BlobClob WHERE id = 40");
    rs.next();

    java.sql.Blob blob = rs.getBlob(2);
    java.sql.Clob clob = rs.getClob("myClobColumn");

    byte blobVal[] = new byte[(int) blob.length()];
    InputStream blobIs = blob.getBinaryStream();
    blobIs.read(blobVal);
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    bos.write(blobVal);
    blobIs.close();

    char clobVal[] = new char[(int) clob.length()];
    Reader r = clob.getCharacterStream();
    r.read(clobVal);
    StringWriter sw = new StringWriter();
    sw.write(clobVal);

    r.close();
    conn.close();
}

---

From source file:JDBCPool.dbcp.demo.offical.PoolingDriverExample.java

public static void main(String[] args) {

    // First we load the underlying JDBC driver.
    // You need this if you don't use the jdbc.drivers system property.
    System.out.println("Loading underlying JDBC driver.");
    try {//from w  ww  .java  2 s  .  com
        Class.forName("com.cloudera.impala.jdbc4.Driver");
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }
    System.out.println("Done.");

    // Then we set up and register the PoolingDriver.
    // Normally this would be handled auto-magically by an external configuration, but in this example we'll do it manually.
    System.out.println("Setting up driver.");
    try {
        setupDriver(args[0]);
    } catch (Exception e) {
        e.printStackTrace();
    }
    System.out.println("Done.");

    //
    // Now, we can use JDBC as we normally would.
    // Using the connect string
    //  jdbc:apache:commons:dbcp:example
    // The general form being:
    //  jdbc:apache:commons:dbcp:<name-of-pool>
    //

    Connection conn = null;
    Statement stmt = null;
    ResultSet rset = null;

    try {
        System.out.println("Creating connection.");
        conn = DriverManager.getConnection("jdbc:apache:commons:dbcp:example");
        System.out.println("Creating statement.");
        stmt = conn.createStatement();
        System.out.println("Executing statement.");
        rset = stmt.executeQuery(args[1]);
        System.out.println("Results:");
        int numcols = rset.getMetaData().getColumnCount();
        while (rset.next()) {
            for (int i = 1; i <= numcols; i++) {
                System.out.print("\t" + rset.getString(i));
            }
            System.out.println("");
        }
    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        try {
            if (rset != null)
                rset.close();
        } catch (Exception e) {
        }
        try {
            if (stmt != null)
                stmt.close();
        } catch (Exception e) {
        }
        try {
            if (conn != null)
                conn.close();
        } catch (Exception e) {
        }
    }

    // Display some pool statistics
    try {
        printDriverStats();
    } catch (Exception e) {
        e.printStackTrace();
    }

    // closes the pool
    try {
        shutdownDriver();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:stockit.ClientFrame.java

/**
 * @param args the command line arguments
 *//*  w  ww  .ja  v  a2 s .c o m*/
public static void main(String args[]) {
    /* Set the Nimbus look and feel */
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
    /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
     * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
     */
    username = args[0];
    try {
        DBConnection dbcon = new DBConnection();
        dbcon.establishConnection();
        Statement stmt = dbcon.con.createStatement();
        ResultSet rs = stmt.executeQuery("SELECT C.Name\n" + "       FROM Client as C, Account as A\n"
                + "       WHERE C.Client_SSN = A.Client_SSN and\n" + "         A.username = \"" + username
                + "\"");
        while (rs.next()) {
            name = rs.getString("Name");
        }
        dbcon.con.close();
        //setUpTable();
    } catch (Exception ex) {
        System.out.println(ex.toString());
    }
    try {
        for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
            if ("Nimbus".equals(info.getName())) {
                javax.swing.UIManager.setLookAndFeel(info.getClassName());
                break;
            }
        }
    } catch (ClassNotFoundException ex) {
        java.util.logging.Logger.getLogger(ClientFrame.class.getName()).log(java.util.logging.Level.SEVERE,
                null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(ClientFrame.class.getName()).log(java.util.logging.Level.SEVERE,
                null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(ClientFrame.class.getName()).log(java.util.logging.Level.SEVERE,
                null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(ClientFrame.class.getName()).log(java.util.logging.Level.SEVERE,
                null, ex);
    }
    //</editor-fold>
    //</editor-fold>

    /* Create and display the form */
    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {
            new ClientFrame().setVisible(true);
        }
    });
}

---

From source file:Main.java

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

    stmt.executeUpdate("create table survey (id int, name BINARY );");

    String sql = "INSERT INTO survey (name) VALUES(?)";
    PreparedStatement pstmt = conn.prepareStatement(sql);

    // prepare text stream
    File file = new File("yourFileName.txt");
    int fileLength = (int) file.length();
    InputStream stream = (InputStream) new FileInputStream(file);

    pstmt.setString(1, "001");
    pstmt.setAsciiStream(2, stream, fileLength);

    // insert the data
    pstmt.executeUpdate();//from   ww w . java2 s  .  co m

    ResultSet rs = stmt.executeQuery("SELECT * FROM survey");
    while (rs.next()) {
        System.out.print(new String(rs.getBytes(2)));
    }

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

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    conn.setAutoCommit(false);/*from w  w  w.ja v a 2 s .c om*/
    Statement st = conn.createStatement();
    st.executeUpdate("create table survey (id int, name VARCHAR(30) );");
    String INSERT_RECORD = "insert into survey(id, name) values(?,?)";

    PreparedStatement pstmt = conn.prepareStatement(INSERT_RECORD);
    pstmt.setString(1, "1");
    pstmt.setString(2, "name1");
    pstmt.addBatch();

    pstmt.setString(1, "2");
    pstmt.setString(2, "name2");
    pstmt.addBatch();
    int[] updateCounts = pstmt.executeBatch();
    checkUpdateCounts(updateCounts);
    conn.commit();
    ResultSet rs = st.executeQuery("SELECT * FROM survey");
    outputResultSet(rs);
    rs.close();
    st.close();
    conn.close();
}

---

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