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I was interviewed before Jul 2016.
Primary keys uniquely identify records in a table, while foreign keys establish relationships between tables.
Primary keys ensure data integrity by enforcing uniqueness and preventing duplicate records.
Foreign keys create relationships between tables, allowing data to be linked and referenced across multiple tables.
Primary keys are typically used as foreign keys in related tables to establish relationships.
Foreign keys ...
Inner joins are used to combine rows from two or more tables based on a related column between them.
Inner joins return only the matching rows from both tables.
The join condition is specified using the ON keyword followed by the column(s) to join on.
Inner joins can be used to retrieve data from multiple tables based on a common column.
Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;
The SELECT command is used to retrieve data from a database table.
SELECT is a fundamental SQL command used in database management systems.
It allows you to specify the columns and rows you want to retrieve from a table.
You can use various clauses like WHERE, ORDER BY, GROUP BY, etc. to filter and sort the data.
The result of a SELECT query is a result set or a cursor containing the selected data.
Example: SELECT * FROM em...
To create a table, use the CREATE TABLE statement in SQL.
Specify the table name after the CREATE TABLE keyword.
List the column names and their data types within parentheses.
Add any constraints or indexes as needed.
Example: CREATE TABLE employees (id INT, name VARCHAR(50), age INT);
I worked as a Systems Analyst at XYZ Company, where I was responsible for troubleshooting and resolving application issues.
Troubleshooting and resolving application issues
Collaborating with developers to implement fixes
Providing technical support to end users
I applied via Job Portal and was interviewed in Jul 2024. There was 1 interview round.
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
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
Normalization in SQL is the process of organizing data in a database to reduce redundancy and improve data integrity.
Normalization is used to eliminate data redundancy by breaking up tables into smaller, related tables.
It helps in reducing data anomalies such as update anomalies, insert anomalies, and delete anomalies.
There are different levels of normalization - 1NF, 2NF, 3NF, BCNF, and 4NF, each with specific rules t...
PeopleStrong interview questions for popular designations
I was interviewed in Feb 2025.
A standard 30-minute aptitude test.
Get interview-ready with Top PeopleStrong Interview Questions
Binary search
find minium in array.
I applied via Walk-in and was interviewed in Oct 2023. There were 3 interview rounds.
Vlookup is a function in Excel used to search for a value in a table and return a corresponding value.
Syntax: =VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup])
lookup_value: The value to search for in the first column of the table.
table_array: The range of cells that contains the data.
col_index_num: The column number in the table from which to retrieve the value.
range_lookup: Optional. TRUE for approxim...
HLOOKUP is a function in Excel used to search for a value in the top row of a table and return a value in the same column from a specified row.
HLOOKUP stands for Horizontal Lookup.
It is used to search for a value in the top row of a table and return a value in the same column from a specified row.
Syntax: =HLOOKUP(lookup_value, table_array, row_index_num, [range_lookup])
Example: =HLOOKUP(123, A1:D4, 3, FALSE) will searc...
Assignment 1 ,3 and 3
Payroll realated questions and answers
Normal test with VARC Maths
I applied via Shine and was interviewed in Feb 2024. There were 2 interview rounds.
Genral knowledge questions based on Government
Relocation can be comfortable with proper planning and support.
Proper planning and research can help make the relocation process smoother
Having a support system in place can ease the transition to a new location
Utilizing relocation services provided by the company can also make the process more comfortable
I applied via Approached by Company and was interviewed in Dec 2023. There was 1 interview round.
23 questions subjective & 6 questions objective
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