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I applied via Naukri.com and was interviewed before Dec 2021. There were 2 interview rounds.
To find null values from a data using SQL, use the IS NULL operator.
Use the IS NULL operator to check for null values in a specific column.
Combine the IS NULL operator with the WHERE clause to filter out null values.
Use the COUNT function to count the number of null values in a column.
Example: SELECT * FROM table_name WHERE column_name IS NULL;
Example: SELECT COUNT(column_name) FROM table_name WHERE column_name IS NULL
This SQL query selects all rows from a table where the student_name column is null.
The query uses the SELECT statement to retrieve data from a table.
The * symbol means all columns will be selected.
The WHERE clause filters the results to only include rows where student_name is null.
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The link between the 3 financial statements (Income Statement, Balance Sheet, Cash Flow Statement) is that they are interconnected and provide a comprehensive view of a company's financial performance.
Income Statement shows the company's revenues and expenses over a period of time, which affects the company's net income.
Balance Sheet shows the company's assets, liabilities, and equity at a specific point in time, which...
Interest coverage ratio measures a company's ability to pay interest on its debt with its earnings.
Interest coverage ratio is calculated by dividing a company's earnings before interest and taxes (EBIT) by its interest expenses.
A higher interest coverage ratio indicates that a company is more capable of meeting its interest obligations.
A lower interest coverage ratio may signal financial distress and an increased risk ...
GAAP EPS is based on generally accepted accounting principles, while Non-GAAP EPS excludes certain expenses or income that are not considered part of normal operations.
GAAP EPS follows accounting standards set by regulatory bodies like SEC
Non-GAAP EPS excludes items like one-time expenses or gains to provide a clearer picture of ongoing business performance
Investors often consider both GAAP and Non-GAAP EPS when evalua
Amortisation is the process of spreading out the cost of an intangible asset over its useful life.
Amortisation is similar to depreciation, but it is used for intangible assets such as patents, copyrights, and trademarks.
It helps in matching the expense of the intangible asset with the revenue it generates over time.
The amortisation expense is recorded on the income statement and reduces the value of the intangible asse...
I applied via Recruitment Consulltant and was interviewed before Mar 2023. There were 2 interview rounds.
DBMS key concepts and examples of use cases
DBMS stands for Database Management System
Key concepts include data modeling, query optimization, transaction management
Use cases include online transaction processing (OLTP), data warehousing, customer relationship management (CRM)
Examples: MySQL for OLTP, Oracle for data warehousing, Salesforce for CRM
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posted on 25 Nov 2024
I applied via campus placement at National Institute of Technology (NIT), Silchar and was interviewed in Oct 2024. There was 1 interview round.
I applied via Naukri.com and was interviewed in May 2024. There were 2 interview rounds.
Excel pivot tables allow users to create computed fields using formulas.
In Excel pivot tables, computed fields are created by adding a new field with a formula.
Formulas can be simple arithmetic operations or more complex calculations.
Computed fields can be used to perform calculations on existing data in the pivot table.
Examples: calculating profit margin by dividing revenue by cost, calculating average sales per month
Precision is the ratio of correctly predicted positive observations to the total predicted positives, while recall is the ratio of correctly predicted positive observations to the all observations in actual class.
Precision focuses on the accuracy of positive predictions, while recall focuses on the proportion of actual positives that were correctly identified.
Precision = TP / (TP + FP)
Recall = TP / (TP + FN)
Example: In...
I applied via Naukri.com and was interviewed in Mar 2024. There were 2 interview rounds.
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A trigger is a special type of stored procedure that is automatically executed when certain events occur in a database.
Triggers are used to enforce business rules, maintain data integrity, and automate tasks.
They can be set to execute before or after INSERT, UPDATE, or DELETE operations on a table.
For example, a trigger can be created to update a log table whenever a new record is inserted into a main table.
Power BI has different modes like View, Edit, and Data Source.
View mode allows users to interact with reports and dashboards
Edit mode enables users to modify existing reports and create new ones
Data Source mode allows users to connect to and manipulate data sources
I applied via Naukri.com and was interviewed in Apr 2024. There was 1 interview round.
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posted on 21 May 2024
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