You will often come across this ETL testing interview question. ETL testers are in high demand because ETL testing is so crucial. Data sources are validated, data is extracted, transformation logic is applied, and data is loaded into target tables by ETL testers. An ETL tester's primary respo...
In addition to the above ETL testing questions, there may be other vital questions where you may be asked to mention the ETL tools which you have used earlier. Also, you might be asked about any debugging issues you have faced in your earlier experience or about any real-time experience. ...
The general methodology of ETL testing is to use SQL scripting or do “eyeballing” of data.. These approaches to ETL testing are time-consuming, error-prone and seldom provide completetest coverage. To accelerate, improve coverage, reduce costs, improveDefectdetection ration of ETL testing in pr...
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76. Data Transformation ETL testing involves writing ___ SQL queries for each row in order to confirm the rules of the transformation.Two Three Four MultipleAnswer: D) MultipleExplanation:Data Transformation ETL testing involves writing multiple SQL queries for each row in order to confirm the rul...
ETL测试基础教程：数据提取、转换和加载说明书
Dell (22) Aptitude Interview Questions GE (2) Placement Assistance HAL (1) Placement Assistance Infosys (212) Challenging Puzzles ISRO (6) Placement Assistance Mphasis (1) Placement Assistance Oracle (206) Aptitude Interview Questions Java Interview Questions SQL Interview Questions Sonata (65) Analyti...
The transformation operations include joining data from two different data sources, aggregating, concatenating, sorting, and many advanced validation rules using SQL SELECT statements.LoadThe last step is loading the cleansed and transformed data to the data warehouse for further analysis. While you are...
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etc. Open source tools, enterprise tools, cloud services, etc., and many more frequently asked questions about ETL Tools like What are famous ETL Tools, Is SQL an ETL Tool, What ETL Tool google uses, etc. At the end of this article, you will have a good understanding of the fundamental...