Example usage for java.sql Statement executeQuery

List of usage examples for java.sql Statement executeQuery

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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[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/testdb", "root", "");

    Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
            ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = statement.executeQuery("SELECT * FROM products");

    if (resultSet.isAfterLast()) {
        System.out.println("You are at the beginning of the result set.");
    }/*from   w ww.ja v a2  s.  com*/
    connection.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/testdb", "root", "");

    Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
            ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = statement.executeQuery("SELECT * FROM products");

    if (resultSet.isBeforeFirst()) {
        System.out.println("beginning");
    }//w w w  . ja  v  a2s  . c om
    connection.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/testdb", "root", "");

    Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
            ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = statement.executeQuery("SELECT * FROM products");

    if (resultSet.isBeforeFirst()) {
        System.out.println("isBeforeFirst.");
    }/*from w ww. ja  v  a 2  s  . c  o  m*/
    connection.close();
}

From source file:Main.java

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

    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 scrollable result set
    Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");

    // Move to the end of the result set
    resultSet.last();

    // Get the row number of the last row which is also the row count
    int rowCount = resultSet.getRow();

}

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.j  av a2s .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(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
    ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");

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

    // Update the value of column col_string on that row
    resultSet.updateString("col_string", "new data");

    // Discard the update to the row
    resultSet.cancelRowUpdates();

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);/*from  www.  j  av  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);
    Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
    ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");

    // Move cursor to the "insert row"
    resultSet.moveToInsertRow();

    // Set values for the new row.
    resultSet.updateString("col_string", "new data");

    // Insert the row
    resultSet.insertRow();

}

From source file:Main.java

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

    Class.forName(DRIVER);//from w ww . jav  a2s.c  o  m
    Connection connection = DriverManager.getConnection(URL, USERNAME, PASSWORD);

    Statement statement = connection.createStatement();
    String query = "SELECT stock_id, name, price FROM stocks";
    ResultSet resultSet = statement.executeQuery(query);

    ResultSetMetaData metadata = resultSet.getMetaData();
    int precision = metadata.getPrecision(3);
    int scale = metadata.getScale(3);

    System.out.println("Precision: " + precision);
    System.out.println("Scale    : " + scale);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/testdb", "root", "");

    Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
            ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = statement.executeQuery("SELECT * FROM products");
    while (resultSet.next()) {
        String productCode = resultSet.getString("product_code");

        int row = resultSet.getRow();

        System.out.println(row + ". " + productCode);
    }/*  w  ww .  jav a2  s  .co  m*/
    connection.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getOracleConnection();
    Statement stmt = null;
    ResultSet rs = null;//from ww  w .  j a  v  a2  s . co  m
    stmt = conn.createStatement();
    //only for Oracle
    rs = stmt.executeQuery("select object_name from user_objects where object_type = 'VIEW'");

    while (rs.next()) {
        String tableName = rs.getString(1);
        System.out.println("viewName=" + tableName);
    }

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

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/testdb", "root", "");

    Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
            ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = statement.executeQuery("SELECT * FROM products");
    resultSet.afterLast();//from w  w  w. j  av  a2s.c o m
    while (resultSet.previous()) {
        String productCode = resultSet.getString("product_code");
        String productName = resultSet.getString("product_name");
        int quantity = resultSet.getInt("quantity");
        double price = resultSet.getDouble("price");

        System.out.println(productCode + "\t" + productName + "\t" + quantity + "\t" + price);
    }
    connection.close();
}