Google Team Manager Interview Questions and Answers

Write java coding for solutions providesd?

Q1. What is sql? And what is use on select?
Ans. 
SQL is a programming language used for managing and manipulating databases. The SELECT statement is used to retrieve data from a database.
• SQL stands for Structured Query Language

• It is used to communicate with databases to perform tasks such as querying, updating, and deleting data

• The SELECT statement is used to retrieve data from a database

• Example: SELECT * FROM table_name WHERE condition;
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Q2. Diff between inner join and outer join?
Ans. 
Inner join returns only the rows that have matching values in both tables, while outer join returns all rows from both tables.
• Inner join is used to retrieve rows from both tables that have matching values based on a specified condition.

• Outer join is used to retrieve all rows from both tables, with matching rows from both tables where available.

• Examples: Inner join - SELECT * FROM table1 INNER JOIN table2 ON table1.id =...read more
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Q1. Salary expectation
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Q2. Detail about roal
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Q1. Explain function callback with code.
Ans. 
A function callback is a function that is passed as an argument to another function and is executed after the completion of that function.
• Callback functions are commonly used in asynchronous programming to handle tasks that take time to complete.

• Example: setTimeout function in JavaScript takes a callback function as an argument to execute after a specified time.

• Callback functions can also be used to customize behavior ...read more
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Q2. Smart Pointer in C++, and it's use and implementation in code.

Ans. 

Smart pointers in C++ are objects that manage the memory of dynamically allocated objects, helping to prevent memory leaks.

• Smart pointers automatically manage memory deallocation

• Types include unique_ptr, shared_ptr, and weak_ptr

• Example: unique_ptr ptr(new int);

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