If you're on this page, it's probably because you've got an SQL interview coming up— and JOIN clauses will almost certainly make an appearance. Before the big day, be sure to carefully study the different types of JOIN clauses and be prepared to answer JOIN-centric questions from your...
Landing a job that requires SQL skills often means preparing for a challenging interview. SQL is a foundational technology for database management, so employers test candidates on various concepts ranging from basic to advanced-level queries. This blog covers common SQL interview questions and their ...
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 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 uniquely identified e...
172 SQL Questions and Answers:SQL Job Interview Questions Table of Contents: What is SQL (Structured Query Language)? What is the SQL*Plus? What is NVL? What is a Character Functions? What is SET? What is a TTITLE & BTITLE? What is sql BREAK? What is sql JOIN? What is sql ...
Frequently Asked SQL Interview Questions 1. What is a Database? Adatabase refers to a structured data collection that can be stored, managed, and retrieved from a remote or local computer system. Databases can become pretty complex and are built with a fixed design and modeling approach. ...
41 Essential SQL Interview Questions * Toptal sourced essential questions that the best SQL developers can answer. Driven from our community, we encourage experts to submit questions and offer feedback. Hire a Top SQL Developer Now is an exclusive network of the top freelance software developers, ...
Softwaretesting-QuestionsandAnswers-SQLInterviewQuestions Q.WhatdoesSQLstandfor? A.StructuredQueryLanguage Q.Whatisaprimarykey? A.Primarykey:EachrowofthedatainatableuniquelyidentifiedbyaPrimaryKey Thecolumn(columns)thathascompletelyuniquedatathroughoutthetableis ...
Be prepared to write the commands in your interview. Books online also has information on detailed backup/restore architecture and when one should go for a particular kind of backup. 14. What is database replication? What are the different types of replication you can set up in SQL Server?
Performance object: SQL Server:Memory Manager Counter: Total Server Memory (KB) Q. What is theoption”Lock Pages in Memory”? Ans: Lock Pages in Memory is a setting that can be set on 64-bit operating systems that essentially tell Windows not to swap out SQL Server memory to disk. By ...