Team Lease UI Developer Interview Questions and Answers

Q1. What is joins with syntax
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Syntax for joins typically involves specifying the tables to join, the columns to join on, and any additional conditions
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Q1. Distance bw 2 nodes in binary tree
Ans. 
To find the distance between two nodes in a binary tree, we can find the distance from the root to each node and then calculate the distance between the two nodes.
• Calculate the distance from the root to each node using a recursive function

• Find the lowest common ancestor of the two nodes

• Calculate the distance from each node to the lowest common ancestor and add them together to get the total distance
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Q2. Valid sudoku of 9*9
Ans. 
A valid sudoku of 9*9 is a grid where each row, column, and 3x3 subgrid contains the numbers 1-9 without repetition.
• Each row must contain the numbers 1-9 without repetition

• Each column must contain the numbers 1-9 without repetition

• Each 3x3 subgrid must contain the numbers 1-9 without repetition
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Some technical questions coding English paragraph

3 min continuously speak on one topic

Q1. Related technology technical questions
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Q1. About family and company
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Q1. Initial screening from teamware and next level of round of techies discussion from client team.
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Q1. SQL basic and moderate level questions
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Q1. Technical Questions related to job role.
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