Websym Solutions Interview Questions and Answers

Q1. About profession
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Q2. About qualification
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Q1. About yourself
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Q2. Salary dissection
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Q1. About digital marketing
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Q1. What is the default index type
Ans. 
B-tree index is the default index type in Oracle database.
• Default index type in Oracle is B-tree index

• B-tree index is suitable for range queries and equality searches

• Other index types in Oracle include bitmap index and function-based index
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Q2. What is the causes of query slowness
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Causes of query slowness can include inefficient queries, lack of indexes, outdated statistics, hardware limitations, and network latency.
• Inefficient queries - poorly written queries that do not utilize indexes or join tables unnecessarily

• Lack of indexes - missing indexes on columns frequently used in queries

• Outdated statistics - outdated or inaccurate statistics can lead to poor query execution plans

• Hardware limitatio...read more
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Q3. How to resolve query slowness
Ans. 
To resolve query slowness, analyze query execution plan, optimize indexes, update statistics, consider partitioning.
• Analyze query execution plan to identify bottlenecks

• Optimize indexes to improve query performance

• Update statistics to ensure the query optimizer has accurate information

• Consider partitioning large tables to improve query performance
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Q1. Introduction yourself
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I am a dedicated PL/SQL developer with 5 years of experience in designing and implementing database solutions.
• Experienced in writing complex PL/SQL queries and stored procedures

• Proficient in performance tuning and optimization of SQL queries

• Skilled in database design and normalization principles

• Familiar with Oracle database technologies such as triggers and packages
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Q2. What is join and its types
Ans. 
Join is used to combine rows from two or more tables based on a related column between them.
• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both tables

• LEFT JOIN returns all rows from the left table and the matched rows from the right table

• RIGHT JOIN returns all rows from the right table and the matched rows from the left table

• FULL JOIN r...read more
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Q1. What is RAG actually?
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Q2. Explain previous work
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Employee management system

Q1. Basic exp details
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Q2. Salary expectations
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Inventory based task for web app

Q1. Overall exp discussion with CEO
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Q1. Difference between list and set , different data types in python , questions on dictionary
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Q2. SQL and table related questions and project discussion
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Q1. Educational Background
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Q1. They are asking questions based on Linux ,basic commands, system call, memory management.
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Q1. Here also they are asking some questions on c based on command line argument and variable length argument
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