Q1. What is a temporal table? A1. Temporal tables store and maintain information with respect to time. This tracks data changes, and enables us to maintain and manage the history of the data in a table. … Read more ›...
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SQL retrieving the latest records interview Q&As
This question can reveal a lot about your ability to write SQL queries as different approaches can be used and there will be drill down on pros and cons of each approach. Q1. Given the following SQL, how do you retrieve the latest records by updated date for each user?...
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Straight Through Processing, OLTP, Data warehousing & OLAP
Large mission critical applications use Straight Through Processing, and these systems need to be highly scalable. So, when you apply for these high paying jobs, it really pays to prepare for your job interviews with the following questions and answers.
Q. What is Straight Through Processing (STP)?
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What do data analysts, engineers & scientists do?
In addition to the Data Analysts, the Data Engineers & Data Scientists must have the below know-hows.
Zookeeper example – getting started tutorial with Java & Docker
Zookeeper solves challenges in a distributed system. This extends Apache Zookeeper interview Q&As and Getting started with Zookeeper tutorial. In this Zookeeper tutorial let’s use Docker. Zookeeper image in Docker Hub Step 1: Zookeeper image can be found at Docker Hub. … Read more ›...
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