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....
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...
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 end, multiple-choice questions are provided to test your understanding. Play SQL...
can help you answer questions. When you use SQL, you must use the correct syntax. Syntax is the set of rules by which the elements of a language are correctly combined. SQL syntax is based on English syntax, and uses many of the same elements as Visual Basic for Applications ...
4. What are thebasicsoftware requirements for installingSQLServer 2005? Ans: Microsoft Windows Installer 3.1 or later Microsoft Data Access Components (MDAC) 2.8 SP1 or later Microsoft .NET Framework 2.0 Software Development Kit (SDK) Microsoft .NET Framework 2.0 (Installed Automatically) ...
It covers the basic knowledge and advanced knowledge of SQL language and common scenario-based Interview questions that the Interviewer may expect you to answer. Q1: What is Database Management System (DBMS)? A database management system (or DBMS) is a computerized data-storing system. Users ...
Softwaretesting-QuestionsandAnswers-SQLInterviewQuestions Q.WhatdoesSQLstandfor? A.StructuredQueryLanguage Q.Whatisaprimarykey? A.Primarykey:EachrowofthedatainatableuniquelyidentifiedbyaPrimaryKey Thecolumn(columns)thathascompletelyuniquedatathroughoutthetableis ...
the MyUNSW interface, but the system does allow you to carry out most basic enrolment tasks online. Despite its successes, MyUNSW/NSS still has a number of deficiencies, including: no waiting lists for course or class enrolment no representation for degree program structures ...
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Basic SQL Introduction The SQL Tutorial for Data Analysis Learn to answer questions with data to solve challenging problems. Start Now Lesson 1 Using SQL in Mode Learn to use Mode's Query Editor to run SQL queries against data in a relational database. ...