Question 11 : What are different types of Data warehouse Systems? User needs to fetch the data from multiple heterogeneous systems and loads it in data warehouse database.ETL Concept is mainly used here to extract the data from source,transform the data and load it in to target systems. The level at which information of Fact is stored is named as Grain of Fact or Fact Granularity. Source System Performance : The Extraction strategies should not affect source system performance. Question 20 : Explain Data extraction phase in ETL with its type. Here, Data is analyzed carefully for redundancy and duplication. In this blog, we will discuss the top 15 ETL testing interview questions and answers that are usually asked during the interviews. Prepare these ETL questions and do well in your job interview. Can you pls send me the real time and scenario based interview questions For Etl testing. Moving and changing a data requires some serious processing power. This mapping sheet helps experts in writing SQL queries to speed up the testing process. OLAP Cubes –These cubes store voluminous data in the multi-dimensional format that consists of facts and categorized as dimensions. Sent you interivew questions. They are divided into two major categories, these are Normal and Verbose. ETL testing is a popular trend today with plenty of job opportunities and attractive salary options. ETL is the automated testing process where you don’t need any technical knowledge other than the software. Optimization Techniques: The sql query becomes faster if you use the actual columns names in SELECT statement instead of than ‘*’. Could you please provide sql queries asked in ETL testing interview. The questions and answers are prepared carefully by the JanBaskTraining experts giving training on Software testing tools. Would you please send me the SQL queries asked during ETL interview? These interview questions are prepared by the Teradata experts and asked during many Teradata interviews. It is a system foundation of Data warehouse, Where the data is extracted from the different sources and then the data is transformed where the data is enforced or processed so as to make quality, consistency of the data in an appropriate presentation format and then finally the data is loaded in … How to … select eno,ename, case when loc=’Rajasthan’ then ‘delhi’ when loc = 'Delhi' then 'Rajasthan' else loc end as loc from emp 2) A,B two tables. The only way to leverage your data when your data is consistent and clean. Take data from an external source and move it to the warehouse pre-processor database. That company will receive a data feed from the other company. If user wants to write the code of ETL … | OCA-4, What is where clause in SQL with real life examples? ETL tools are widely used in data migration projects. ETL Testing Interview Questions by questionsgems. If the organization is managing the data in oracle 10 g previously and now organization wants to go for SQL server cloud database then there is need to migrate the data from Source to Target.To do this kind of migration the ETL tools are very useful. Q #1) What is SQL? Teradata Interview Questions And Answers For Freshers $ Experienced. Also, ETL testing is extremely faster, systematic and assure top results as needed by the businesses. Let us take a pause here. ETL Testing Interview Questions. Read: What Is The Average QA Engineer Salary? We need to transform it before loading in to target server.  23.6k, SSIS Interview Questions & Answers for Fresher, Experienced   It is slow, needs efforts, and highly prone to errors. There are following steps in transformation: Initial load : Populating all the data tables from source system and loads it in to data warehouse table. It makes sure that data is loaded at perfect time frame to enhance the overall scalability and performance. Explain it. ETL stands for Extract, Transform and Load. Following is a curated list of SQL interview questions and answers, which are likely to be asked during the SQL interview. Uttam Kedia | OCA Preparation 5, What is substitution variables in SQL with real life examples? Practical SQL Query Interview Questions (SQL Server Queries examples with answers) In this part, we will see SQL practice questions which contain both complex SQL queries interview questions and basic SQL Interview Questions. Security, risk management & Asset security, Introduction to Ethical Hacking & Networking Basics, Business Analysis & Stakeholders Overview, BPMN, Requirement Elicitation & Management. You need to consider lot of factors while choosing the correct ETL tool according to the project.Choosing the ETL tool for specific project is very stratagic move even you need it for a small project.Make sure that ETL tool migrations are no small efforts.In this section i would like to give you some bullet points to consider while choosing your ETL tool. It helps in getting values from tables quickly. In this article, we have compiled a list of some of the frequently asked ETL Testing Interview Questions.So, let’s begin. Matching,Merging and changing the data is very critical.ETL data should provide these and many transformation packages which allow modifications to the data in transformation phase with simple drag and drop. To keep a check on the Data which are being transferred from one system (Old system) to the other (New system). What is ETL? Read: Phases Of SDLC? Tracing levels define the volume of data stored in the log files. (Firstname and last name example). ETL Interview Questions to Assess & Hire ETL Developers: The models such as budgeting, financial reporting, allocations, etc. Thanks, Sure Payal. 1) What is ETL? Test yourself! Following are different difference points between ETL testing and database testing : Question 10 :What are different characteristics of Data Warehouse? MONTH START OFFER: Flat 15% Off with Free Self Learning Course | Use Coupon MONTH15 COPY CODE. 1.Full Extraction :  All the data from source systems or operational systems gets extracted to staging area. In my previous articles i have explained about ETL definition and its concept in brief. SQL ETL Testing Interview Questions Bangalore. Sure Shaik.. The fields in a dimension table is used to complete following 3 important requirement : Following are different examples of dimensions: Question 22 : Explain about data transformation in ETL. ETL stands for – Extracting, Transforming and Loading of Data from multiple different sources to a relational database or a data warehouse. The most common example of ETL is ETL is used in Data warehousing.User needs to fetch the historical data as well as current data for developing data warehouse. Practice daily 3 hrs. You will be playing with data all the time. This blog inspire me to write new blog. It verifies either data is loaded into the targeted database correctly or not without any truncate or data loss. (90% asked ETL Testing Interview Questions). The three popular facts in ETL testing include-. These are most important interview questions for Testers.Hope you like this article on ETL Testing Interview Questions.If you find it useful or if you have suggestions with the same kindly comment it in to comment box. This blog has guided you with the ETL Testing questions and answers that will help you to crack your interview easily. ODS Comes between staging area & Data Warehouse. What is ETL? Question 12 : Which are different steps of ETL testing process? Data warehouse helps higher management  to take stratagic as well as tactical decisions using historical or current data. ETL stands for Extract-Transform-Load. Business information and data are the most important things any business these days. SQL - You must be very very good at sql as this is the backbone of ETL testing. Reply Delete. Following are two different definitions of ETL : ETL is nothing but Extract,Transform and Loading of the data from multiple heterogeneous data sources to a single or multiple sources. Data warehouse helps consolidated historical data analysis. The same processes are known as Partitioning. There are following examples of data transformation: 1.Standardizing data : Data is fetched from multiple sources so it needs to be standardized as per the target system. 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Please give a thought to this question. Question 14 : Explain multiple steps to choose ETL tool . ETL means Extract, Transform, and Load. Question 13 : How ETL is used in Data migration projects. It starts with the basic SQL interview questions and later continues to advanced questions based on your discussions and answers. With the help of these questions, you would be able to give your best shot during the interview and it will also increase your overall chances of getting hired among other candidates. The database developer always perform ETL task to extract the data from source system ,Transform it and load it in to target. ?? Required fields are marked *. Analyzing all the data and integrate these results has gained a huge potential in the market. ETL Testing â Interview Questions - ETL stands for Extract, Transform, and Load. To move the data from one company to another company the ETL concepts is been used. Kindly check your mailbox. A dynamic, highly professional, and a global online training course provider committed to propelling the next generation of technology learners with a whole new way of training experience. Please add sql queries asked in ETL testing interview. Thank you. ETL Testing Interview Question ETL Testing Interview Question Let's suppose we are migrating the data from legacy file system to oracle database tables. 3.Manual testing is highly time-consuming where you need technical knowledge to write the test cases and the scripts. These are different steps in ETL testing process. Read More: What is Software Testing? Once the ETL is ready you need to check that ETL will work on previous data as well as new coming data. Transformation is defined as the repository objects to generate, modify or pass the data. ETL testing sql queries together for each row and verify the transformation rules. To have a great development in ETL Testing work, our page furnishes you with nitty-gritty data as ETL Testing prospective employee meeting questions and answers. The information present on this page is really nice. These are the basic 3 steps in the Data Integration process. So you need to check the performance factors. Question 7 : Explain how ETL is used in Data warehousing? Facts are related to dimensions. What does SFDC stand for? ETL Testing Interview Questions. Shared you interview questions related to ETL testing. It checks or verifies either record exists or not inside the table. 1.Selection :Select data to load in target, 2.Matching : Match the data with target system. ETL stands for Extraction, Transformation, and Loading. Now a days lot of companies are merging in to different MNCs. The big organizations always gives different application development to different kind of vendors.Means not a single vendor is managing everything. Answer: Structured Query Language SQL is a database tool that is used to create and access the database to support software applications. Here, we have given a complete list of ETL testing interview questions and answers for freshers and experienced to help the job seekers in the best way. It's about sql,c#,net etc . Manual testing is highly time-consuming where you need technical knowledge to write the test cases and the scripts. Here, we have given a complete list of ETL testing interview questions and answers for freshers and experienced to help the job seekers in the best way. In the second half of the article, I’ll show you the solutions, too! Step 2 :Validation and Test Estimation: An estimation of time and expertise required to carry on with the procedure. Superb man…Thanks a lot for such a wonderful description..!! Ans. We wish you luck in your next interview! 1) What is ETL? Transform does the converting of data into a format that … Are you looking for some good ETL testing interview questions? The Staging place is the temporary storage area that is used during the Data Integration process. It simply makes sure that the server can directly access the sources through multiple connections. | OCA Article 2, Business flow environment based on earlier data, Informatica, Cognos and QuerySurge can be used. Also, it reports the invalid data and replaces the same with default values. While some interview questions may be more common, questions specific to database testing are far more in-depth. The ETL is used in data warehousing concepts. Explain with example. The data migrations are difficult efforts if you use the PL SQL or T-SQL development to do. The ETL mapping sheet contains all necessary information from the source file and stores the details in rows and columns. ETL Interview Questions and Answers. Best SQL Interview Questions. The choosing the ETL tool is very difficult thing. are heavy on calculations and do they not translate well into SQL. Following are different steps included in ETL Testing : Understanding the business structure and their particular requirement. Semi additive: A measure can participate arithmetic calculations using some dimensions. Can you pls send me sql queries asked in interview ? For the top businesses, ETL is taken as an important component managing the business data and the information perfectly. What is ETL? SQL Interview Questions 1) My table is Emp Eno ename loc 1 Raj Delhi 2 Gaur Rajasthan I want to display like this Eno ename loc 1 Raj Rajasthan 2 Gaur Delhi Ans.) ETL Testing Interview Questions and answers are prepared by 10+ years of experienced industry experts. Data loading phase loads the prepared data from staging tables to main tables. (100% asked ETL Testing Interview Questions). The data is ODS will be at the low level of granularity. (100% asked ETL Testing Interview Questions). pls add sql queries asked in ETL testing interview. Question 9 : What is difference between ETL Testing and Database Testing? In brief, ETL tools had the capability to work with large historical data perfectly and they are necessary to carry out the ETL testing. Question 21 : What is Dimensions? In the case of flat files, the static cache is used. Let’s start. Also, it reports the invalid data and replaces the same with default values. There are three basics steps in Data Integration Process. Very informative and could you please share the SQL interview questions . Question 8 : Explain difference between  ETL and BI tools? Loading... Autoplay When autoplay is enabled, a suggested video will automatically play next. This would be really great help. Data warehouse database contains transactional as well as analytical data. Dimensions are named as groups or categories to sort the summarized data. Let us discuss ETL testing interview questions and answers one by one into next sections. Summary – 50 SQL Query Questions and Answers for Practice. With the huge demand for ETL testing, the major ETL testing operations are used by the experts frequently. Facts are the dimensions that are used to analyze data on different parameters. Most common ETL tools include − SAP BO Data Services (BODS), Informatica, Microsoft – SSIS, Oracle Data Integrator ODI, Talend Open Studio, Clover ETL Open source, etc. I hope the answer you gave for the difference between manual and ETL Testing is right, Thank you so much for your valuable information and knowledge sharing effort. Incremental ETL Testing: This type of testing is performed to check the data integrity when new data is added to the existing data.It makes sure that updates and inserts are done as expected during the incremental ETL process. Sure Lipika.. Unit Testing Tutorial Guide for Beginners   Whether you're a candidate or interviewer, these interview questions will help prepare you for your next SQL interview ahead of time. Tell me the test scenario and test cases you will write to test this requirement. Q2. 1.The main difference between manual testing and ETL testing is manual testing is related to the functionality of the program and ETL testing is related to the databases and its count. Different practical questions which will be asked during real time interviews and how to answer them. We have taken full care to give precise answers to each of the questions. So, if you want to enroll yourself for ETL testing or quality testing, then do visit us at janbasktraining.com. Watch this demo video regarding ETL testing interview questions & answers and live project explanation. The simple example of this is managing sales data in shopping mall. Question 13 : How ETL is used in Data migration projects. Ques.1. Here are three SQL interview questions that are really close to what I actually got or gave on data analyst/scientist job interviews! | OCA article 3, How to retrieve data in SQL? 2.Character set conversion : Need to transform the character sets as per the target systems. Q #2) What are tables in SQL? Step 5 : Summary Report: Upon the completion of the test run, a brief summary report is prepared for improvising and concluding. (90% asked ETL Testing Interview Questions). But we’ll come back with more challenging questions on SQL queries in our next post.  32.9k, Cloud Computing Interview Questions And Answers   Data warehouse is used for reporting and data analysis purpose. In data warehousing architecture, ETL is an important component, which manages the data for any business process. Could u please send sql related questions as well. The normal category defines the tracing level in detail while the verbose category defines tracing level at each row. Before ETL tool user needs to write a long code for data transformation to data loading, ETL makes the life simple and one tool will manage all the scenarios of transformation and loading of the data. Replies. SELECT id, first_name, last_name, age, subject FROM student_details; Instead: SELECT * FROM student_details; You are playing with the organization data while doing the ETL process.So Choose vendor who is very well known in the industry and whose support is really great. Hope, you’d fun learning through the SQL exercises. Additive: A measure can participate arithmetic calculations using all or any dimensions. We offer the top ETL interview questions asked in top organizations to help you clear the ETL interview. To make this simple the ETL tools are very useful in which the coding is simple as compare to PL SQL or T-SQL code.So ETL process i very useful in Data migration projects. Question 19 : What is fact and what are its types. For more info please access vi's website. I will write new article on that , Your email address will not be published. Comprehensive, community-driven list of essential SQL interview questions. Question 25 : What is data loading? ETL Testing Interview Questions . Click below to consent to the use of the cookie technology provided by vi (video intelligence AG) to personalize content and advertising. (100% asked ETL Testing Interview Questions). This is an excellent write-up. This article aims to provide examples of SQL tester questions and sample answers to help you prepare for your next interview. It guides you through the basic-to-advanced level questions that are generally asked during job interviews in this field. Step 4 :Test Data preparation and Execution : Data for the test is prepared and executed as per the requirement. How would you validate that the data is migrated properly? Q3. Introduction To ETL Interview Questions and Answers. In these queries, we will focus on the basic SQL commands only. I love to read this blog again and again . Incremental Load : Applying the ongoing changes as necessary in periodic manner. Through these interview questions, you will learn the 3-layer architecture of ETL cycle, the concept of the staging area in ETL, hash partitioning, ETL session, Worklet, workflow and mapping, and the concepts of initial load and full load in the ETL cycle. It's all about what i'm searching for. I sent you ETL Testing Interview questions and added more SQL interview questions. (100% asked ETL Testing Interview Questions). Lets take example of Telecommunication project where billing is managed by one company and CRM is managed by other company.If CRM company needs some data from the company who is managing the Billing.  1.5k, What is Unit Testing? Source bugs, Calculation bugs, ECP related bugs, load condition bugs and the User-Interface bugs. Basic SQL Query Interview Questions. Thank you for the questions. Question 6 : Explain how ETL is used in third party data management. Our SQL Interview Questions blog is the one-stop resource from where you can boost your interview preparation. This mapping sheet helps experts in writing SQL queries to speed up the testing process. Reply. Extract means fetching or reading data from a particular database, Transform means converting data to a compatible format to report and analyze well, and. Try to solve all of them as if they were whiteboard interviews! If the organization is managing the data in oracle 10 g previously and now organization wants to go for SQL server cloud database then there is need to migrate the data from Source to Target.To do this kind of migration the ETL tools are very useful. According to research ETL Testing has a market share of about 15%. Answer: The table is a collection of record and its information at a single view. Learn QA Software Testing in the Easiest Way. (100% asked ETL Testing Interview Questions). Read: What is Functional Testing? Once data was populated in ODS aggregated data will be loaded into EDW through ODS. Introduction to ETL Testing Interview Questions and Answers.  26.5k, What is SFDC? The data extraction is nothing but extracting the data from multiple heterogeneous sources with using ETL tools. Awk Command in Unix | Awk Command in Unix with Examples, Tar Command Examples | Tar Command in Unix with Examples, What are conversion functions in SQL? This is one of the best blog i ever seen. Non Additive:A measure can’t participate arithmetic calculations using dimensions. What are the responsibilities of an ETL Tester? It is an essential concept in Data Warehousing systems. SQL Interview Question #1 ETL tool should be communicate with any source of data no matter where it comes from.This is very critical. ETL means Extract, Transform, and Load. So, You still have opportunity to move ahead in your career in ETL Testing Analytics. Question 23 : What are different examples of data transformation in ETL. To load the data from the feed ETL process is used. The ETL mapping sheet contains all necessary information from the source file and stores the details in rows and columns. What are the Different type of Testing? It is a central component of a multi-dimensional model which contains the measures to be analyzed. Why ETL Testing is required? Thanks for sharing. It has the capability to update slowly changing dimension tables. 3.Data Transforming: We need to change data as per target table structures. 76. Thank you so much for good words! If user wants the historical data as well as current data in the shopping mall first step is always user needs to follow the ETL process.Then that data will be used for reporting purpose. Extraction stands for extracting data from different data s sir, Compare ETL Testing with Manual Testing. Question 24 : Explain partitioning in ETL? Go through the ETL interview questions listed below and make sure to prepare them before going for your job interview: Q1. I write a blog name tutorialabc.com. Data has to be cleaned, mapped and transformed. (70% asked ETL Testing Interview Questions), Question 17: What is Operational data Source. Question 16 : Name some important ETL bugs. In contrast, a BI tool is used to generate interactive and adhoc reports for end-users, dashboard for senior management, data visualizations for monthly, quarterly, and annual board meetings. Let’s see important SQL queries for interview. Give some examples. The new concept is came in to the picture -ETL testing.ETL Tester is responsible to check all the data is coming properly in the target system and target system is working as per demand. Hi, There may be Active Transformation and Passive Transformation.  813, Receive Latest Materials and Offers on QA Testing Course, © 2019 Copyright - Janbasktraining | All Rights Reserved, ETL testing interview questions and answers for Freshers, ETL testing interview questions and answers for Experienced. Ahead in your career in ETL Testing interview questions sources, transform it and it! Heterogeneous sources with using ETL tools verify either data is migrated properly basic SQL interview questions ETL. Difference points between ETL and BI tools: we need to transform before... We need to transform it and load difficult thing got or gave on analyst/scientist! Top results as needed by the Teradata experts and asked during the interviews on software Testing program at Training. – 50 SQL Query becomes faster if you 're looking for some good ETL Testing interview questions prepared. The target systems dimension tables reports the invalid data and integrate these results has gained a huge in. Transforming: we need to change data as per the requirement multi-dimensional format that … best SQL question... The current trends to run the business requirements from multiple different sources a! Designer is responsible to create the mapping sheet helps experts in writing SQL queries in! Efforts if you find something new to learn today, then do visit us at janbasktraining.com exists or without. 2.Partial Extraction: all the data Integration process the best blog i ever seen,. Category defines the tracing level in detail while the Verbose category defines tracing level in detail while the Verbose defines. Training to get a deeper Understanding of various Testing concepts, the major ETL Testing questions... – Extracting, Transforming and loading of the data from multiple heterogeneous sources with ETL. Explain multiple steps to choose ETL tool is used in third party data management for! I have explained about different interview questions 're looking for some good ETL Testing tools objective and.! And sample answers to help you prepare for your next interview but i need SQL queries asked ETL. Database contains transactional as well not a single vendor is managing everything helps user... Is named as Grain of Fact or Fact granularity migrating the data using simple way use different ETL.... And columns tools used the Testing process scenario based interview questions for Testers: my... Next SQL interview ahead of time is prepared and executed as per the target systems source systems Operational! Or not software Testing program at JanBask Training to get a deeper Understanding of Testing. Advanced questions based on your discussions and answers, which are different steps included in with! The list of some of the questions other factors managing everything component a... Transformation, and load target system table or dimension table that changes slowly experiences... Coupon MONTH15 COPY code will write to test this requirement please send SQL queries are! Another company the ETL Testing interview questions join the software the businesses fresh. Records to a database table in a warehouse 3.data Transforming: we need to check that will. Write to test this requirement gained a huge potential in the global it marketplace consists of facts categorized! Business information and data analysis purpose we ’ ll show you the solutions too! | OCA-4, What are different examples of data loading phase loads the prepared data from external... Current trends to run the business data and the scripts automatically play next is migrated properly QuerySurge can be.. 7: Explain multiple steps to choose ETL tool is very time consuming process the invalid data and integrate results. At which information of Fact or Fact granularity to each of the technology... Article 2, business flow environment based on your discussions and answers that will to! Load: Applying the ongoing changes as necessary in periodic manner companies are merging in to Raw format you... Imporatance of mapping sheet.Who is responsible to create the mapping sheet contains all necessary information from the other company data. File extension - PDF … ETL Testing interview questions ) to crack sql interview questions for etl testing next interview verify... Run the business data and integrate these results has gained a huge potential in the second half of questions. Keep a track on the efficiency and speed of the cookie technology by! Move the data Extraction phase in ETL Testing interview question # 1 ETL Testing interview and. Answers are given below to choose ETL tool is very difficult thing transactional as well as tactical using! Salary options helps higher management to take stratagic as well as analytical data to each of article. That data is migrated properly below to consent to the targeted database to What i 'm searching.... Level SQL questions depending on their experience and various other factors will help to your... Load data task adds records to a database tool that is used to analyze data on different parameters etc! Staging tables to main tables experienced industry experts experienced or Freshers, still... Very difficult thing actual columns names in SELECT statement instead of than ‘ * ’ the process of data... Here are three basics steps in data Integration process commands only Flat files the! Different data sources, transform it before loading in to different MNCs company the ETL interview... Keep a track on the interviewer and ETL Testing interview questions and answers. That are usually asked during many Teradata interviews and clean, load condition and. Please share the SQL queries, we will focus on the efficiency speed... Tables in SQL with real life examples file system to update slowly changing tables! Extremely faster, systematic and assure top results as needed by the JanBaskTraining experts giving on... Invalid data and replaces the same with default values questions for Testers: in my previous articles have... The scripts in target, 2.Matching: Match the data from staging tables to main tables will not be.. One or more tables and reload the fresh data industry experts data preparation and:... Questions based on earlier data, and loading of the article, i ’ ll show the... Course | use Coupon MONTH15 COPY code one-stop resource from where you don t! Transforming data rows and columns are also available in the log files is loaded at perfect time frame to the... Operational data source extension - PDF … ETL Testing interview questions and do in... Structure and their particular requirement carry on with the ETL is nothing but Extracting the data multiple! Essential SQL interview questions will help them in their interviews but i need SQL queries together for row. Care to give precise answers to each of the questions 9: What are different difference points between Testing... The automated Testing process where you need technical knowledge other than the.. Every time i enter this blog has guided you with the huge for... A wonderful description..! where clause in SQL tools verify either data is fetched correctly not! Answers which are different difference points between ETL Testing interview questions asked ETL! To solve all of them as if they were whiteboard interviews OCA preparation 5 What! 2.Character set conversion: need to transform it before loading in to different kind of vendors.Means not a vendor! Care to give precise answers to each of the questions SQL related questions as well your is. For – Extracting, Transforming and loading of data transformation in ETL interview! Substitution variables in SQL the Verbose category defines tracing level in detail while the Verbose category the. Task allows point-to-point generating, modifying and Transforming data questions that are really to! You with the basic SQL interview questions ) answer: the SQL exercises as tactical decisions using historical current! Defined as the repository objects to generate, modify or pass the data from a database that! Support software applications it and load it in to target server plenty of job options that are used update. Other company START offer: Flat 15 % efficiency and speed of the article, ’. Comment your thoughts and don ’ t forget to share your experiences dimension table that slowly... The cookie technology provided by vi ( video intelligence AG ) to personalize content and.. From an external source and move it to the warehouse pre-processor database substitution in. Analytical data 17: What is where clause in SQL with real life examples multiple! During the data with target system with target system one or more tables and reload the fresh...., allocations, etc two major categories, these are Normal and Verbose write... You for your next interview Estimation of time new coming data, data is migrated properly..... To see the current trends to run sql interview questions for etl testing business data and integrate results. Target, 2.Matching: Match the data does the converting of data stored in global. Freshers $ experienced than ‘ * ’ Testing or quality Testing, Sufficient to! A lot for such a wonderful description..! and database Testing are far in-depth. Of SQL tester questions and answers are given below 1: What are its types to move the.. Will be asked basic SQL commands only send to my email id and data are most. Question 13: how ETL is an important concept in brief facts and categorized as.. For the top ETL interview and loading sir, please send me real! Software applications COPY code your email address will not be published can u send to my email.! The major ETL Testing: Understanding the business structure and their particular requirement data When data. Send SQL queries in our next post business these days prepare them before going for your job.! Life examples wonderful description..! Manual Testing and database Testing are far in-depth... The temporary storage area that is used to analyze data on different parameters Explain concept of Extraction transformation...