PlaySimple Games Senior Business Analyst Interview Questions and Answers

Q1. Basic questions on Sql
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Q2. Few queries on CTE, JOINS, WINDOW functions
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Q1. Similar as first row but some critical questions on sql
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Q1. General questions about shifts and role
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Q1. SQL Based advanced question
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Q2. Advanced SQL questions with Joins, Window Functions, etc
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Q1. SQL questions, puzzle
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Q2. Cohort analysis
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Q3. Guesstimates questions were asked
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Q4. Project overview
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Q5. Tableau basicquestions
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Q1. Basic 10-15btheorotical question
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Q2. Join + window funct question
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Q1. Difference Between Union and Union All
Ans. 
Union combines and removes duplicates, Union All combines without removing duplicates
• Union combines result sets and removes duplicates

• Union All combines result sets without removing duplicates

• Union is slower than Union All as it involves removing duplicates

• Example: SELECT column1 FROM table1 UNION SELECT column1 FROM table2;

• Example: SELECT column1 FROM table1 UNION ALL SELECT column1 FROM table2;
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Q2. SQL Execution order
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Q3. Coalesce function in SQL
Ans. 
Coalesce function in SQL is used to return the first non-null value in a list of expressions.
• Coalesce function takes multiple parameters and returns the first non-null value.

• It is commonly used to handle null values in SQL queries.

• Example: SELECT COALESCE(column_name, 'N/A') FROM table_name;
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Q1. Intermediate and Advanced SQL Questions, for best, try leetcode sql practice.
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Basics of SQL was asked, having good foundation will really help in clearing this round

Q1. Sql concepts and scenarios
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