Popularly asked ETL interview questions in 2025: 1. Explain what the ETL testing operations include. 2. How do you handle slowly changing dimension?
Mock Interview Preparation 1 on 1 Career Mentoring Sessions Career Oriented Sessions Resume & LinkedIn Profile Building Click to Zoom ETL ToolsCertification Our course on ETL tools is designed by BI experts with years of experience in working with various ETL tools. As part of this training, you...
Apache Hive is a SQL-based data warehousing tool used for extracting meaningful information from data. Data warehousing is storing all kinds of data generated from different sources at the same location. Hive is a fast, scalable big data tool and can query Petabytes(PB) of data very efficiently...
Get data for each trade and settlement for the current instrument, using the following query: SELECT T.INSTRUMENTKEY, T.TradeDate as Sec_Date From DIM_INSTRUMENT I, FACT_TRADE T WHERE T.InstrumentKey=I.InstrumentKey and I.Status=’C’ UNION ALL SELECT S.INSTRUMENTKEY, S.SettlementDt as ...
Frequently Asked SSIS Interview Questions & Answers NOTE:Warnings in a package do not indicate the package will fail. In this case, the zip code is trimmed to 5 characters so you know the data is not going to be truncated as indicated by the warning. It is acceptable to run packages with...
All methods should have appropriate unit tests regardless of visibility To measure their effectiveness all unit tests should use appropriate coverage techniques Strive for one assertion per test case Createunit teststhat target exceptions Checkout –ETL Testing Interview Questions & Answers...
5. Microsoft SQL Server Integration Services (SSIS) SSIS is an enterprise-level platform for data integration and transformation. It comes with connectors for extracting data from sources like XML files, flat files, and relational databases. Practitioners can use SSIS designer’s graphical user interf...
Perform Validation and Offshore Co-ordination. Additional Job Details: 1 - SQL (Structured Query Language) (P5 - Master) 2 - Data Warehouse Tools (P4 - Expert) 3 - Application Architectures (P3 - Advanced) Turn OFF keyword highlights
Power BI/SQLDeveloper,Richmond, VA Feb-28-25 IT Business Consulting ($) :Market On-site Hybrid position. 2 days on-site and should be available for all in-person meetings if required. In-person interview. Assist with overall Power BI/SQLSupport (development, performance, process, documentation...
To speed up query processing, have auxiliary views and indexes: To reduce storage costs, store summarized data into disk tapes. Also, the trade-off between the volume of data to be stored and its detailed usage is required. Trade-off at the level of granularity of data to decrease the sto...