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Showing posts from December 3, 2024

SQL Queries Code Interviews QA 50 plus

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Here are SQL-focused interview questions with only the relevant SQL code: 1. Find the second highest salary from an Employee table. SELECT MAX(Salary) AS SecondHighestSalary FROM Employees WHERE Salary < (SELECT MAX(Salary) FROM Employees); Using ROW_NUMBER(): WITH RankedSalaries AS (   SELECT Salary, ROW_NUMBER() OVER (ORDER BY Salary DESC) AS Rank   FROM Employees ) SELECT Salary AS SecondHighestSalary FROM RankedSalaries WHERE Rank = 2; --- 2. Write a query to calculate a running total of sales. SELECT   OrderID,   OrderDate,   Amount,   SUM(Amount) OVER (ORDER BY OrderDate) AS RunningTotal FROM Orders; --- 3. Retrieve customers who placed no orders using a LEFT JOIN. SELECT c.CustomerID, c.CustomerName FROM Customers c LEFT JOIN Orders o ON c.CustomerID = o.CustomerID WHERE o.OrderID IS NULL; --- 4. Write a query to find the top 3 highest salaries. SELECT DISTINCT Salary FROM Employees ORDER BY Salary DESC LIMIT 3; Using DENSE_RANK(): WIT...
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Insurance team's work during natural disaster events Role play scenario how Insurance team's work

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Scenario: Underwriting Natural Disaster Risk in Hurricane-Prone Regions Key Players: 1. Sophia (Underwriting Manager): Oversees policy design and premium determination. 2. Ethan (Actuarial Analyst): Specializes in catastrophe modeling and predictive analytics. 3. Amara (Risk Assessment Lead): Focuses on environmental risk and regional vulnerability analysis. 4. Liam (Claims Analyst): Provides historical claims data and disaster impact insights. 5. Maya (GenAI Specialist): Leverages AI-driven tools for data processing and scenario simulations. --- Step 1: Initial Meeting Sophia: "Team, we’re planning to underwrite policies in a hurricane-prone region. I need a detailed analysis of potential risks and pricing recommendations." Ethan: "I’ll gather data on past hurricanes and run catastrophe models to estimate potential losses." Amara: "I’ll analyze the geographical and environmental factors contributing to the region's risk." Maya: "I’ll ...
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Guidewire data analytical in house products & its usecase scenario

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Guidewire Data Studio Guidewire Data Studio is part of the Guidewire Data Platform, which is an enterprise-grade, cloud-native big data solution designed specifically for property and casualty (P&C) insurers. Here's an overview of its details and how one can learn about it: Details: Purpose: Guidewire Data Studio is aimed at helping insurers unlock data potential by providing tools for data ingestion, curation, and analysis. It enables insurers to ingest data from both internal and external sources, unify and transform this data, and then use it for advanced analytics, reporting, and decision-making. Key Features:  Data Ingestion: Collects data in near real-time from various systems, including Guidewire and third-party applications. Curation: Uses multiple curation engines to prepare data for use, whether in real-time or batch mode. Data Lake: Stores both raw and curated data in a scalable environment. Data Catalog: Manages metadata to make data discoverable, secure...
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Introduction to genai data analytics and it is usecases

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Introduction to Generative AI for Data Analytics Generative AI (GenAI) is a subset of artificial intelligence that focuses on creating new content, ideas, or insights by leveraging existing data. In the context of data analytics, GenAI can augment traditional methods by generating predictions, insights, or simulated data that improve decision-making, trend analysis, and operational efficiency. Here’s an elaboration with practical examples: --- 1. Data Synthesis for Training and Testing Use Case: Creating synthetic datasets when real-world data is sparse, incomplete, or sensitive. Example: A healthcare analytics company generates synthetic patient records using GenAI to train predictive models without violating privacy laws like HIPAA. The synthesized data mimics real-world scenarios and maintains statistical fidelity to actual patient data. --- 2. Predictive Analytics Use Case: Forecasting trends or events based on historical data patterns. Example: In retail, GenAI predicts future dem...
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