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I applied via Approached by Company and was interviewed in May 2024. There was 1 interview round.
A bloom filter in HBase is a data structure used to test whether a given element is a member of a set.
Bloom filters are used to reduce the number of disk reads in HBase by quickly determining if a row may exist in a table.
They are implemented as a compact array of bits, with multiple hash functions used to map elements to bits.
Bloom filters can produce false positives but not false negatives, making them useful for pre...
Use dropDuplicates() function in pyspark to remove duplicate rows based on primary key.
Use dropDuplicates() function on the DataFrame with the primary key column specified.
Specify the subset parameter in dropDuplicates() to specify the primary key column.
Example: df.dropDuplicates(['primary_key_column'])
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I applied via Naukri.com and was interviewed in Dec 2021. There was 1 interview round.
I applied via Approached by Company and was interviewed before May 2023. There were 2 interview rounds.
SQL is a domain-specific language used for managing and manipulating relational databases.
SQL stands for Structured Query Language
It is used to communicate with databases to perform tasks such as querying data, updating data, and creating databases
Performance tuning in SQL involves optimizing queries, indexes, and database design to improve speed and efficiency
Examples of performance tuning techniques include using ind...
I applied via Company Website and was interviewed before Aug 2020. There was 1 interview round.
I applied via Referral and was interviewed in Oct 2021. There were 2 interview rounds.
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I applied via Recruitment Consultant and was interviewed before Nov 2020. There was 1 interview round.
I applied via Walk-in and was interviewed before Jun 2021. There were 2 interview rounds.
EPS stands for Earnings Per Share. Balance sheet always matches due to the fundamental accounting equation.
EPS is a financial metric that measures the profit earned by a company per outstanding share of common stock.
It is calculated by dividing the net income of the company by the total number of outstanding shares.
Balance sheet always matches because of the fundamental accounting equation which states that assets must...
Depreciation and amortization are accounting methods used to allocate the cost of assets over their useful lives.
Depreciation is the allocation of the cost of tangible assets, such as buildings or equipment, over their useful lives.
Amortization is the allocation of the cost of intangible assets, such as patents or copyrights, over their useful lives.
Both depreciation and amortization are non-cash expenses that reduce t...
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