Maximize the value of your data with our comprehensive guide to database validation and verification! The increasing reliance on big data means having a solid and trustworthy database is essential for maintaining and organizing information. But manually checking each entry can be tedious and costly. That's why automation is the way to go. Learn how to use Selenium WebDriver and JDBC for cost-effective and efficient database testing. From making a connection, executing queries, and analyzing results, to closing the connection, we'll walk you through every step. Then, ensure your data is accurate and secure with our user-friendly guide.

Significance of Effective Database Testing

As the industry moves into big data, Database plays a significant role in maintaining information and holding the series. In addition, database Validation and Verification are essential in ensuring no bugs while capturing and storing the data. Here are some statistics and facts that highlight the importance of effective database testing:

  • According to Gartner, by 2025, data will be the critical basis of competition for 80% of businesses.
  • A study by IBM found that poor data quality costs companies an average of $3.1 million annually.
  • Selenium WebDriver is the most widely used test automation tool for web applications.

 

There are two ways to achieve Database Testing:

Either manually or through automation.

In manual testing, you need to scan every data instance in the Database while any transaction occurs over the Front-end. In addition, it's evident that multiple simultaneous movements are happening over the system, resulting in a complex manual technique.

On the other hand, Selenium is a powerful method in Automation Software aiming to include functionalities for checking the Database, which is very time-saving and cost-effective on any scale.

Selenium WebDriver is limited to using a Browser to check the applications. For using Selenium WebDriver for database verification, you will need to utilize the JDBC (Java Database Connectivity).

JDBC (Java Database Connectivity) is a Database level API for running SQL statements. It is responsible for the communication between the Java programming language and various databases. The JDBC API contains the classes and interfaces below.

  • Driver Manager: To manage a list of database drivers. This driver recognizes a sub-protocol under JDBC to establish a database Connection.
  • Driver: An interface handling communications with the database server.
  • Connection: An interface consists of all the methods required to connect to a database. The communication contexts are represented by the connection object, where the whole Database communication is based on the connection object.
  • Statement: the interface executes SQL statements against a relational database.
  • Result Set: an object which points the cursor to the current row.
  • SQLException: An exemption that contains details about a mistake in accessing a database or other errors. Each SQLException offers knowledge of different kinds.

    • High-Level diagram of database testing

    Image 1

    Steps to establish Database connection

    1. Make a connection to the Database

    To make a connection with Database, the syntax will be
    DriverManager.getConnection(URL, "userid", "password" )
    Here,

    • Userid is the username configured in the Database.
    • Password: is of the configured user.
    • URL is of format jdbc:< dbtype>://ipaddress:portnumber/db_name"
    • The driver for the Database you are trying to connect. To connect to the SQL server database, this value will be "SQLEXPRESS2016". For connecting to Database with the name "emp" in the SQL Server URL will be jdbc:sqlserver://\\SQLEXPRESS2016: ;databaseName=;

    And the end code will look like this:

    Connection con = DriverManager.getConnection(dburl, username, password);
    You also need to load the JDBC Driver using the below code:
    Class.forName("com.Microsoft.sqlserver.jdbc.SQLServerDriver");

    2. Send Queries to the Database

    You need to run the queries as soon as the connection is established.
    You can use the Statement Object to send queries.
    Statement stmt = con.createStatement();
    Once the statement object is created, use the executeQuery method to execute the SQL queries.
    ResultSet rs = stmt.executeQuery(select * from employee;);

    3. Process the results

    Display the results using the below code

    while (rs.next()) {

    String myName = rs.getString(0);
    String myAge = rs.getString(1);
    System.out.println(myName + " :::: " + myAge);

    }

    4. Close the connection

    con.close();

    To Conclude the DB Testing:

    With the increasing use of big data, the need for database testing is also increased; according to a recent survey, 70% of businesses say that database testing is critical for their operations, and 60% of them have already adopted automation for database testing. Traditional manual testing methods can be slow and costly, but with Selenium WebDriver and JDBC, you can easily automate your database testing process. Not only will this save you time and money, but it will also give you peace of mind knowing that your data is accurate and secure.

    In short, with the increasing use of big data and cloud-based systems, automated database testing is becoming a must-have for companies looking to ensure accuracy, security and efficiency. So, don't wait any longer; embrace the power of Selenium WebDriver and JDBC and take control of your data today.

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