3. What is SQL? SQL stands for Structured Query Language , and it is used to communicate with the Database. This is a standard language used to perform tasks such as retrieval, updation, insertion and deletion of data from a database. 7. What is a unique key? A Unique key constraint ...
SQL knowledge is essential for the majority of services. There are a lot of important questions for which the candidates need to be prepared while going for an interview. TheSQL Interview Questionsare very important for getting a job. One must answer the SQL Interview Questions to qualify for ...
SQL Interview Questions Our schema We'll be going through six questions covering topics like query performance, joins, and SQL injection. They'll refer to the same database for cakes, customers, and orders at a bakery. Here's the schema: CREATETABLEcakes(cake_idINTNOTNULLAUTO_INCREMENTPRIMARY...
Sharpen your SQL interview expertise with our handpicked 172 questions. Each question is crafted to challenge your understanding and proficiency in SQL. Suitable for all skill levels, these questions are essential for effective preparation. Secure the free PDF to access all 172 questions and ...
scripting, and markup languagessurvey made by StackOverflow in 2022. Therefore SQL is essential and should not be missing from ourpreparation for technical interviews. We will start with some of the most fundamentalSQL interview questionsabout databases and increase the difficulty level along the way...
Submit an interview question Submitted questions and answers are subject to review and editing, and may or may not be selected for posting, at the sole discretion of Toptal, LLC. Name Email Enter Your Question Here … Enter Your Answer Here … I agree with the Terms and Conditions of ...
SQLInterviewQuestionsForSoftwareTesters Softwaretesting-QuestionsandAnswers-SQLInterviewQuestions Q.WhatdoesSQLstandfor? A.StructuredQueryLanguage Q.Whatisaprimarykey? A.Primarykey:EachrowofthedatainatableuniquelyidentifiedbyaPrimaryKey Thecolumn(columns)thathascompletelyuniquedatathroughoutthetableis ...
Processor\%Processor Time:Monitoring CPU consumption allows you to check for a bottleneck on the server (indicated by high sustained usage). High percentage of Signal Wait:Signal wait is the time a worker spends waiting for CPU time after it has finished waiting on something else (such as a ...
I have checked and studied lot of website and taken the opinion of experienced professionals and come up with Interview Questions for SQL.In Previous article i have explained the interview questions for Tech mahindra and interview questions for IBM.In website you will get different interview questi...
Make sure that you create an alias for the subquery (AS image_per_user). It’s a syntax requirement in SQL. Eventually, in an outer query, apply aWHEREfilter and aCOUNT()function on the result of the subquery. Solution of SQL Interview Question #3 ...