Paytm Manager Interview Questions and Answers

Q1. Tell me About your self
Ans. 
Experienced manager with a proven track record in leading teams to success through effective communication and strategic planning.
• Over 10 years of experience in management roles

• Strong leadership skills demonstrated through successful team projects

• Effective communication and problem-solving abilities

• Proven track record of meeting and exceeding goals

• Strategic thinker with a focus on long-term planning
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Q2. About your work profile
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A case study is related to supply and demand.

Q1. As questions related to SQL, types of joins, keys, and windows function.
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Q2. Types of Joins?
Ans. 
Types of joins include inner join, outer join, left join, right join, and full join.
• Inner join: Returns rows when there is a match in both tables.

• Outer join: Returns all rows when there is a match in one of the tables.

• Left join: Returns all rows from the left table and the matched rows from the right table.

• Right join: Returns all rows from the right table and the matched rows from the left table.

• Full join: Returns rows
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Q3. Explain different types of Keys.
Ans. 
Keys in database management are used to uniquely identify records in a table.
• Primary Key: uniquely identifies each record in a table, must be unique and not null

• Foreign Key: links two tables together, ensures referential integrity

• Composite Key: combination of two or more columns to uniquely identify a record

• Super Key: set of attributes that uniquely identifies a record
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Q4. Difference between DBMS and R-DBMS
Ans. 
DBMS is a software system that manages databases, while R-DBMS is a relational database management system that stores data in tables with relationships.
• DBMS stores data in files, while R-DBMS stores data in tables with relationships

• DBMS does not support relationships between tables, while R-DBMS supports relationships through keys

• R-DBMS ensures data integrity through normalization, while DBMS does not have this feature
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