Each question comes with a perfectly written answer inline, saving your interview preparation time. It also covers practice problems to help you understand the basic concepts of SQL. We've divided this article into the following sections: SQL Interview Questions PostgreSQL Interview Questions In the ...
Basic SQL Interview Questions 18. What is a function in SQL, and why do we use functions? A function is a database object that encapsulates a set of SQL statements that perform operations and return a specific result. To increase readability and reusability of code functions are used. 19....
A table is the basic unit of data storage in an ORACLE database. The tables of a database hold all of the user accessible data. Table data is stored in rows and columns. Q. Do View contain Data? Views do not contain or store data. ...
The use of comparison operators like <,> or = can be done in a subquery. These kinds ofSQL Interview Questionsare a bit difficult to understand and answer accordingly. There are a lot ofSQL Interview Questionsapart from this, which the candidates must practice qualifying for the interview. Fo...
SQL Job Interview Questions and Answers 1 :: What is SQL (Structured Query Language)? SQL is an English like language consisting of commands to store, retrieve, maintain & regulate access to your database.Read More 2 :: What is the SQL*Plus? SQL*Plus is an application that recognizes &...
10. Basic difference between stored procedure and user defined function? 11. See we have a simple query that’s calling a static function, like “Select * from employee where joiningdate < getstaticdate()”? Does it call function for every time or only for matched rows? How you tune this...
Master SQL with our tutorial designed for both beginners and experienced. Learn from basic queries to advanced database management techniques through practical examples.
l One machine provides the basic services and the second is available to run the service when the primary system fails.l The primary system is monitored periodically to check if it works. This monitoring may be performed by the failover computer or an independent system also called as cluster...
SQL Server Interview Questions and Answers Book is your comprehensive guide to excelling in interviews for SQL Server development and administration roles. Covering a wide range of topics from basic SQL queries to advanced database optimization techniques, this book ensures you’re well-prepared to ta...
These are just basic questions and you can check the data analyst interview questions here. CLICK HERE TO GET INTERVIEW QUESTIONS FOR TCS… Following are some important Interview Questions for SQL : 1.What is SQL?Where SQL is used? Answer: SQL is Structured Query Language, which is a ...