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preparedstatement java

marktecher.com answered on September 30, 2022 Popularity 10/10 Helpfulness 4/10

answer preparedstatement java

related What is called PreparedStatementCreator?

preparedstatement java

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public void printAdultResidents(String[] args) {
   // Register Driver Class
   Class.forName("<your DB driver class here>");
   // Connection to your database
   Connection con = DriverManager.getConnection();

   // Query which needs parameters
   String query = "Select * from residents where age> ?";

   // Prepare Statement
   PreparedStatement myStmt = con.prepareStatement(query);

   // Set Parameters
   myStmt.setInt(1, 18);

   // Execute SQL query
   ResultSet myRs = myStmt.executeQuery();

   System.out.println('Residents');

   // Display function to show the Resultset
   while (myRs.next()) {
       String Name = rs.getString("name");
       int age = rs.getInt("age");
       System.out.println(Name + "     " + age);
   }

        // Close the connection
   con.close();
}

Popularity 10/10 Helpfulness 4/10 Language java

Source: www.geeksforgeeks.org

Tags: java prepared-statement

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Contributed on Sep 30 2022

marktecher.com

0 Answers Avg Quality 2/10

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What is called PreparedStatementCreator?

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PreparedStatementCreator is one of the most commonly used interfaces for writing data to the database.

createPreparedStatement() is a method that can be used to create and return PreparedStatement from the Connection argument, and exception handling is automatically taken care of.

When this interface is implemented, a different interface SqlProvider can also be implemented which has a method called getSql().

This method is useful for providing sql strings to the JdbcTemplate. It does not handle SQLExceptions.

class Main {
  public static void main(String args[]) throws Exception {
    ApplicationContext ac = new ClassPathXmlApplicationContext("context.xml", Main.class);
    DataSource dataSource = (DataSource) ac.getBean("dataSource");
    // DataSource mysqlDataSource = (DataSource) ac.getBean("mysqlDataSource");

    JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);

    String machaceksName = (String) jdbcTemplate.query(new PreparedStatementCreator() {
      public PreparedStatement createPreparedStatement(Connection connection) throws SQLException {
        return connection
            .prepareStatement("select first_name from customer where last_name like ?");
      }
    }, new PreparedStatementSetter() {
      public void setValues(PreparedStatement preparedStatement) throws SQLException {
        preparedStatement.setString(1, "Mach%");
      }
    }, new ResultSetExtractor() {
      public Object extractData(ResultSet resultSet) throws SQLException, DataAccessException {
        if (resultSet.next()) {
          return resultSet.getLong(1);
        }
        return null;
      }
    });
    System.out.println(machaceksName);
  }
}

http://www.java2s.com/Code/Java/Spring/PreparedStatementCreatorAndPreparedStatementSetter.htm

Popularity 8/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Jan 09 2023

Anjali Sharma

0 Answers Avg Quality 2/10

preparedstatement java

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What is called PreparedStatementCreator?

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