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Download Cracking the Coding Interview: 70 Database Questions and by Chinmoy Mukherjee PDF

By Chinmoy Mukherjee

We current 70 fascinating database interview questions and solutions for readers to perform and crack any database interview. The reader is inspired to aim to resolve those questions himself/herself earlier than checking the solutions.

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Extra resources for Cracking the Coding Interview: 70 Database Questions and Answers

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Consistency. Isolation. Durability. C. Access. Consistency. Isolation. Data. Answer: B Database Interview Question-44. Which of the following SQL statements deletes all rows in table called SalesData? A. DELETE * FROM SalesData B. DELETE FROM SalesData C. DELETE SalesData D. DELETE ALL SalesData Answer: B Database Interview Question-45. Which of the following SQL clauses is used to select data from 2 or more tables? A. HAVING B. WHERE C. JOIN Answer: JOIN Database Interview Question-46. The INNER JOIN clause… A.

C. Specify the table we are selecting or deleting from. Answer: C Database Interview Question-43. What does ACID stand for? A. Access. Constraint. Index. Data. B. Atomicity. Consistency. Isolation. Durability. C. Access. Consistency. Isolation. Data. Answer: B Database Interview Question-44. Which of the following SQL statements deletes all rows in table called SalesData? A. DELETE * FROM SalesData B. DELETE FROM SalesData C. DELETE SalesData D. DELETE ALL SalesData Answer: B Database Interview Question-45.

What is bcp? Answer: bcp in Sybase helps to copy table into a flat file and vice versa. Database Interview Question-9. Suppose you are logged onto a database DB1. What query will you run in DB1 to retrieve data from the table table1 present in another database DB2? table1 or use DB2;select * from table1 Database Interview Question-10. What are main Open source databases? Answer: PostgreSQL, MySQL, etc. Database Interview Question-11. What is a View? Answer: A view is the representation of a SQL statement that is stored in memory so that it can easily be re-used as example CREATE VIEW [MyProductList] AS SELECT ProductID,ProductName FROM Products WHERE Discontinued=No SELECT * FROM [MyProductList] Database Interview Question-12.

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