Comprehensive, community-driven list of essential SQL interview questions. Whether you're a candidate or interviewer, these interview questions will help prepare you for your next SQL interview ahead of time.
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...
24 :: What is sql Correlated Subquery? Correlated Subquery is a subquery that is evaluated once for each row processed by the parent statement. Parent statement can be Select, Update or Delete. Use CRSQ to answer multipart questions whose answer depends on the value in each row processed by...
We can’t create a new database when model database is down. SQL Server restart will be unsuccessful when model database is down as TEMPDB creation failed. TEMPDB is created based on model DB configurations, since model DB is down TEMPDB will not be created. Q. Which operation is faster ...
SQL Interview Questions http://career.guru99.com/top-50-sql-question-answers/ 1. What is DBMS? A Database Management System (DBMS) is a program that controls creation, maintenance and use of a database. DBMS can be termed as File Manager that manages data in a database rather than ...
Looking for interview questions specific to MySQL? Checkout our page on MySQL interview questions as well.New: Sign up for a free SQL mini-course Make sure you're prepared for the interview that could change your career. Sign up to receive five free must-learn lessons in preparation for ...
SQL Server Interview Questions for a Data/BI Analyst If you're interviewing for a Data Analyst or BI Analyst role, you'll likely encounter questions focused on your ability to analyze and present data insights. Let's delve into some common interview questions tailored toward these positions. ...
Softwaretesting-QuestionsandAnswers-SQLInterviewQuestions Q.WhatdoesSQLstandfor? A.StructuredQueryLanguage Q.Whatisaprimarykey? A.Primarykey:EachrowofthedatainatableuniquelyidentifiedbyaPrimaryKey Thecolumn(columns)thathascompletelyuniquedatathroughoutthetableis ...
PostgreSQL Job Interview Questions Table of Contents: PostgreSQL Job Interview Questions and Answers 1:: Explain what is PostgreSQL? This is regarded as one of the most successful open source database in the world. This is also used to create advanced applications. This relies on Object relational...
SQL Server Interview Questions and Answers – Part 2 What is the difference between clustered and a non-clustered index? Aclustered indexis a special type of index that reorders the way records in the table are physically stored. Therefore table can have only one clustered index. The leaf ...