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I applied via Naukri.com and was interviewed in Aug 2021. There were 3 interview rounds.
Chargebacks are a reversal of a credit card transaction by the card issuer.
Chargebacks occur when a customer disputes a charge on their credit card statement.
The card issuer investigates the dispute and may reverse the transaction if they find it to be valid.
Merchants may be charged a fee for each chargeback they receive.
Common reasons for chargebacks include fraud, product not received, or product not as described.
Mer...
Types of keys in SQL include primary, foreign, and unique. Types of joins include inner, outer, left, and right.
Primary key: uniquely identifies each record in a table
Foreign key: links two tables together
Unique key: ensures that each value in a column is unique
Inner join: returns only the matching rows from both tables
Outer join: returns all rows from both tables, with null values for non-matching rows
Left join: retur...
Simple topics can be asked. Recend topics shoud be prepared.
posted on 1 Feb 2025
I applied via Company Website and was interviewed in Jun 2024. There was 1 interview round.
I applied via Company Website and was interviewed in Mar 2024. There were 3 interview rounds.
posted on 9 Apr 2024
A chargeback is a reversal of a credit card transaction initiated by the cardholder's bank.
A chargeback occurs when a customer disputes a charge on their credit card statement.
The cardholder's bank investigates the dispute and may reverse the transaction if it is found to be valid.
Chargebacks can result in financial losses for businesses, as they often incur fees and lose the sale amount.
Common reasons for chargebacks ...
I applied via Naukri.com and was interviewed before Oct 2023. There were 2 interview rounds.
I applied via Recruitment Consulltant and was interviewed in Apr 2022. There were 3 interview rounds.
Example cases
posted on 16 Dec 2024
Provide a specific case to study and outline the process for analyzing it.
Simple SAS and sql questions
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