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SQL indexing is a technique to improve query performance by creating indexes on columns in database tables.
Indexes are created using CREATE INDEX statement in SQL.
Indexes can be clustered or non-clustered.
Clustered indexes physically reorganize the table to match the index order.
Non-clustered indexes store a separate copy of the indexed columns.
Indexes should be created on columns frequently used in WHERE, JOIN, and OR...
I have 5 years of experience in IT recruitment, specializing in sourcing, screening, and interviewing candidates.
Specialize in sourcing candidates through job boards, social media, and networking events
Skilled in screening resumes and conducting initial phone interviews
Experienced in coordinating interviews between candidates and hiring managers
Proficient in negotiating job offers and closing candidates
Familiar with ap...
Market research analysis, Sales, customer satisfaction
Helm360 interview questions for popular designations
Basic questions like:
1. Star pattern
2. Reverse array
3. Second highest salary
I appeared for an interview before Jun 2023.
Regression testing is the process of retesting a software application to ensure that new code changes have not adversely affected existing functionality.
Regression testing is performed after code changes to verify that the existing features still work correctly.
It helps in identifying any defects introduced by new code changes.
Automated testing tools are often used for regression testing to save time and effort.
Regress...
Prioritize test cases based on criticality and impact, automate repetitive tests, and focus on high-risk areas.
Prioritize test cases based on criticality and impact
Automate repetitive tests using test automation tools
Focus on high-risk areas to ensure maximum coverage in limited time
I applied via Company Website and was interviewed in Jul 2021. There were 4 interview rounds.
SQL is a programming language used to manage and manipulate relational databases.
SQL stands for Structured Query Language
It is used to create, modify, and query databases
Common SQL commands include SELECT, INSERT, UPDATE, and DELETE
SQL is used in various industries including finance, healthcare, and e-commerce
Joins are used in SQL to combine data from two or more tables based on a related column.
INNER JOIN returns only the matching rows from both tables
LEFT JOIN returns all rows from the left table and matching rows from the right table
RIGHT JOIN returns all rows from the right table and matching rows from the left table
FULL OUTER JOIN returns all rows from both tables
CROSS JOIN returns the Cartesian product of both tables
Developed a predictive model to forecast sales for a retail company
Used historical sales data to train the model
Incorporated external factors such as weather and holidays
Evaluated model performance using metrics like RMSE and MAE
I appeared for an interview before Feb 2021.
Abstract classes can have implementation while interfaces cannot. Classes can implement multiple interfaces but only inherit from one abstract class.
Abstract classes can have constructors while interfaces cannot
Interfaces can only have method signatures while abstract classes can have both method signatures and implementation
Abstract classes can have access modifiers while interfaces cannot
Classes can implement multipl...
One number is missing from 1 to 100. Find it's value.
Use the formula n(n+1)/2 to find the sum of numbers from 1 to 100
Subtract the sum of numbers given from the sum of numbers from 1 to 100 to find the missing number
The missing number is 5050 minus the sum of given numbers
I appeared for an interview in Aug 2021.
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posted on 14 May 2022
I applied via Naukri.com and was interviewed before May 2021. There was 1 interview round.
based on 13 interviews
Interview experience
3-6 Yrs
Not Disclosed
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