Sicgil Industrial Gases Interview Questions and Answers

Online apitude containing 10 question without camera

3 questions in 3 hr, topics were Dp, Strings, Tree

1hr durations 40 questions, main topics were patterns, profit loss, work man , etc.

Q1. OOPS, JAVA, Mysql, general questsjons
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Q1. Introduce Yourself,Write a code to find repeative characters in a String
Ans. 
I am a software engineering student with a passion for coding. Here is a code to find repetitive characters in a string.
• Iterate through the characters in the string and store their occurrences in a HashMap.

• Check the HashMap for characters with occurrences greater than 1 to find repetitive characters.

• Return the repetitive characters as an array of strings.
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Q2. Hi this is my name and qualification and experience
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Q1. SQL question difference between having and where
Ans. 
HAVING is used with GROUP BY to filter groups, WHERE is used to filter rows
• HAVING is used with GROUP BY to filter groups based on aggregate functions

• WHERE is used to filter rows based on conditions

• HAVING is applied after GROUP BY, WHERE is applied before GROUP BY

• Example: SELECT department, AVG(salary) FROM employees GROUP BY department HAVING AVG(salary) > 50000;

• Example: SELECT * FROM employees WHERE department = 'S
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