When performing API testing, we always have to go to the database to check the values that the tested API returns. This site uses Akismet to reduce spam. Find centralized, trusted content and collaborate around the technologies you use most. You will create fifty users that send 2 SQL requests to the database server. The result of successful data deletion will be shown like this: When you have to regularly create test data in specific tables by using different SQL queries, then in the JDBC Request you can use a variable to replace the SQL query itself. This is a SQL query that adds data to the citytable. equals ($ {cityNameFromApi_g1})) {comparisonResult = true;}at each iteration of the loop, it will be checked that the value of the parameter "cityName" from the API response is present in the data that we received from the database and to which we refer using the "dataFromDB" variable. Using JDBC Sampler in JMeter - BlazeMeter With the help of database load testing with Jmeter, you will be able to determine where your system needs hardware or software modification. JMeter Tutorial for Beginners | JMeter Load Testing | Edureka Because the first time I used JMeter for SQL load testing, I started from not knowing about it and encountered errors that took a lot of searching and tweaks to resolve. No connection to the database or data not received !!!!!!!!!!! How to Retrieve Database Data for API Testing With JMeter Setting-Up the Environment 3. See Building a Database Test Plan for more information. Since JMeter sends all the test results to the controlling console, it is easy to saturate the network IO. Contents Copyright (C) 2012-2022 Tushar Sharma [ www.AUTOMATIONDOJOS.com ]. Please ensure that you have the following prerequisites installed before we proceed: Additionally, you need access to a database and the appropriate credentials to connect to it. Let's get started! will be displayed. Step 1: Launch Jmeter. Preinstall the Dummy Sampler from the JMeter plugins manager and perform the following: ThreadGroup -> Add -> Sampler -> jp@gc - Dummy Sampler. He brings his decade of experience to his current role where he is dedicated to educating the QA professionals. Database Testing with JMeter - Loadium In other words, Oh-My-Posh is a powerful custom prompt engine for any shell that has the ability to adjust the prompt string with a function or variable. Opinions expressed by DZone contributors are their own. You can simply change the existing. Database Test Plan Scenario You will create 5 users that send (1) SQL requests, (2)times to the database server. Select Add -> Config Element -> JDBC Connection Configuration. by. You can download the MySql Community edition from here. The data from the database that is used to verify that the API returned a correct answer, will be retrieved once, before the tests begin. Here are some of the reasons for database performance bottleneck: To create a JMeter database load test plan add the following elements: Thread Group - it the beginning point of a test plan and is used to set the number of threads, set the ramp-up period, set the number of times to execute the test. 587), The Overflow #185: The hardest part of software is requirements, Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned, Testing native, sponsored banner ads on Stack Overflow (starting July 6). In User Defined Variables, add the following. To add a JDBC Request sampler Right click on Thread Group > Add > Sampler > JDBC Request, .css-zfexkz{box-shadow:1px 1px 5px 0 rgba(1,1,1,.15);overflow:hidden;background-color:var(--theme-ui-colors-contentBg,#fff);border-radius:0.5rem;margin:0;}.css-1nykscg{box-shadow:1px 1px 5px 0 rgba(1,1,1,.15);overflow:hidden;background-color:var(--theme-ui-colors-contentBg,#fff);border-radius:0.5rem;margin:0;box-shadow:1px 1px 5px 0 rgba(1,1,1,.15);overflow:hidden;background-color:var(--theme-ui-colors-contentBg,#fff);border-radius:0.5rem;margin:0;} The successful result of adding data to the table is when the response contains a row of 1 updates. In addition to using the CSV_Data_Set_Config I've tried going another route by trying to read lines from the file using the CSVRead function and putting the statement in the parameter values of the JDBC Request and using the ? Hope you found this useful. Databases are the crucial factors that affect application performances. If this data is suitable for the test but only with a different value ofcity_id, then you can do the following: This is a SQL query that changes the value of columncity_id = 603tocity_id = 7000in the city table. DoThread Group > Add > Config Element > User Defined Variables. Intro to Performance Testing using JMeter | Baeldung Sergey Horban. Wishing you happy learning! Over 2 million developers have joined DZone. A test plan defines the overall structure of the test, including the number of users, the duration of the test, and the type of requests to be sent to the database. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. "; Before you start working with a database by using JMeter, you need to do the following: Make sure there is a user who has permission to connect and perform common . The cookie is used to store the user consent for the cookies in the category "Performance". Add user Add JDBC requests Suppose that we have an API that takes the parameter "city_id" and according to the value of this parameter, the API returns the parameter "cityName" = "city" from the table "city". Give the variable name as testdb for the created pool field. JDBC Request -> Add -> Assertions -> BeanShell Assertion, 4. This blog post will show you how to do that by using Apache JMeter. .css-1vg6q84{font-weight:700;}Why did I write this guide? Apache JMeter is an open-source load testing application written in Java that you can use to load test web applications, backend server applications, databases, and more. For example, you may need to increase the number of threads or the ramp-up time to simulate a higher load on the database, or you may need to adjust the SQL query to target a specific table or set of data. Please leave the comment below if you want to know more or have any questions. Advantages of JMeter JMeter Tutorial What is Performance Testing? The Config Element- JDBC Connection Configuration is required to be added as child of the Thread Group. Right-clicking on the database name and click Add > Listener > View Results Tree. We will perform 5 API tests with JMeter with the following values of "city_id": 1,2,3,4,5. In the "JDBC Request" add the following example code: This is an SQL query that selects from the table "city" all the rows for which city_id = 1,2,3,4,5. Over 2 million developers have joined DZone. get (i) .get ("city"). Database Testing is a type of software testing that checks the schema, tables, triggers, etc. It is Java based and is highly extensible through a provided API. With this data, the result of each of our tests will be checked. Don't forget to subscribe and stay in touch. Let's see how! In order to use a variable in a JDBC Request, you need to set up the database, and then do the following. Do DBC Request -> Add -> Assertions -> BeanShell Assertion. and the test will be stopped, 8. automateNow uses cookies to give you the most relevant experience by remembering your preferences and repeat visits. Database performance testing is used to identify performance bottlenecks and gain insight into its reliability, scalability, and performance under varying load. .css-16wbd3m{text-align:center;font-style:italic;font-size:0.875rem;margin:1rem;}.css-13jeo2h{text-align:center;font-style:italic;font-size:0.875rem;margin:1rem;text-align:center;font-style:italic;font-size:0.875rem;margin:1rem;}step1. Download Microsoft JDBC Driver for SQL Server, Step 3 Configuring Sampler (JDBC Request), 9 Easy Solutions for a JMeter Load Test Out of Memory Failure, You can download the example JMeter test plan from git, Exporting VS Code Extensions list in command line extension installable format. It is simply a request provider that responds to your request. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Run the script, clean the results and upload the results from the file again. Opinions expressed by DZone contributors are their own. Lost your password? In our case, this element allows us to see the query being sent to the database and the response received from the database. INSERT INTO `sakila` .`city` (` city_id`, `city`,` country_id`, `last_update`) VALUES (603, 'New York', '103', null)is the value of the variableinsert_city. Please enter your email address. Below are the topics which you will learn in this section: In such a case, we will get a negative result, because the database will not allow us to connect. Hi! Failure = true; Change the name of the file to test_result.xml. The View Results Tree allows you to display each sent request and the results. The Database URL will be the location of your created database. In the Dummy Sampler add the following data: 6. .css-17he9du{padding:0;margin:0;margin-bottom:1rem;max-width:100%;} The Regular Expression Extractor will be used to automatically get the value of the cityName parameter from the API response. In the "BeanShell Assertion" add the following example code, This code does the following: if the code in the response from the database is not equal to "200" or we get a response from the database that does not contain any rows, the test will be stopped and the following message will appear "!!!!!!!!!!! dataFromDB is a variable that will reference the data retrieved from the database. In order to do so, it's mandatory to have necessary JDBC drivers in the lib folder of your installation. It also often happens that the database has a limited number of connected users and running execution tests that can address the database. 1. JMeter provides several built-in samplers for sending different requests, such as JDBC, HTTP, and FTP. The View Results Tree allows you to display each sent request and the results. How Microsoft is bringing AI within reach of everyone? A thread group is designed to simulate . JMeter Performance Testing is Testing method performed using Apache JMeter to test the performance of a web application. JMeter was originally used for testing Web Applications or FTP applications. Check out the complete JMeter tutorial below. How To use JMeter for Database server performance testing? For database testing JDBC Request sampler. Thanks for reading! Implementing RESTful Endpoints: A Step-By-Step Guide, Schema Change Management Tools: A Practical Overview, How To Use Terraform to Provision and Configure Distributed YugabyteDB Clusters, How to Create Test Data in a Database With JMeter. In addition to API testing, JMeter is also very popular for performance testing, load testing, and stress testing. The data samples that need to be tested in the database can be either simple or complex, which leads to an increase in the time required to run the tests. Moreover, these tests can also be recorded to be reused in the future to cover more test cases and more features as your project evolves. jMeter - Database Test Plan - Online Tutorials Library Once the whole test script creation and configuration is done, we will run the test by clicking the play icon or pressing Ctrl+r on keyboard. These cookies track visitors across websites and collect information to provide customized ads. Database (Data) Testing Tutorial When performing API testing with JMeter, we always have to go to the database to check the values that the tested API returns. A passionate IT professional with a big appetite for learning, I enjoy technical content creation and curation. You can have several JDBC Configuration elements in the same JMeter test plan. This blog was originally published on February 1, 2018, and has since been updated for accuracy and relevance. Test your database performance by clicking the Run button on the menu bar. How to perform load testing for website using JMeter, jmeter regarding performance and load testing, How to interpret JMeter result while doing Database testing, jMeter database load testing: randomizing a query predicate.