Each question comes with a perfectly written answer inline, saving your interview preparation time. login about faq. SQL Developer Basic Level Test | Online SQL Developer Basic Level Assessment for Hiring, L&D and Recruitment - Used by 1800+ Clients Nationally and Internationally- Free Trial - Request A Demo – Mettl. PL/SQL is an advance version of SQL. SQL PLSQL technical job interview questions of various companies and by job positions. Join over 5 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. These tricky queries may be required in your day to day database usage. Authorization is required to access the service. The test is not official, it's just a nice way to see how much you know, or don't know, about SQL. Make sure you. I have published SQL Server Interview Questions and Answers on many topics. So you have finally found your dream job in SQL but are wondering how to crack the SQL Interview and what could be the probable 2019 SQL Interview Questions. 5 44 guppy 5 35. He has authored 12 SQL Server database books, 24 Pluralsight courses and has written over 4900 articles on the database technology on his blog at a https://blog. One of the best known feature introduced in SQL Server 2012 is “AlwaysOn” which makes use of existing HA/DR features and provide additional features like Availability Groups. If you're looking for SQL Interview Questions and Answer for Experienced or Freshers, you are at the right place. A Story of BI, BIG Data and SQL Server in Canada A Story of BI, BIG Data and SQL Server in Canada We focus on BI, Big Data and SQL Server, providing the latest news from Microsoft and the industry, sharing upcoming events, customer stories and SQL Server product information. 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There are a lot of opportunities from many reputed companies in the world. I have published SQL Server Interview Questions and Answers on many topics. We have gathered a variety of SQL exercises (with answers) for each SQL Chapter. Be prepared to discuss the different factors that impact SQL database performance, such as hardware, table indexes and query structure. The most fun, but also the most feared, part of the process is the technical screening. Database Research & Development: SQL Server Database Administraotr Interview Questions and Answers on, basic configuration, Database maintenance plan, file group, BCP, About basic SQL Server Ports (Day-1). Go to the editor. So, before moving to SQL related Interview Questions, we recommend you take a tour of SQL Tutorial once. I have segregated this "SQL Server Interview Questions" post into two types. T-SQL is the transact sql used by MS SQL Server. So, this blog lists all the top SQL interview questions. 250, and the list contain the larger price first and then by name in ascending order. Keeping this in mind we have designed the most. These are the following common question that I faced in various TSQL interviews. My {program, configuration, SQL statement} doesn't work. NET, C# and SQL Server interview questions and answers, Discuss ASP. Also, T-SQL has a different implementation of DELETE and UPDATE than SQL. AVG() – This functions returns the average value COUNT() – This functions returns the number of rows MAX() – This functions returns the largest value. Password of document – osst. Frequently asked basic and advanced Top 80 + SQL Queries Interview Questions and Answers with Examples for Business Analyst, Data Analyst, DBA, Freshers and Experienced Java, PHP, Dot Net programmers in Oracle, MySQL and MS SQL Database. verify that the inserted data is correct. The test is not official, it's just a nice way to see how much you know, or don't know, about SQL. In the details pane, right-click SQL Server and then click Restart, to stop and restart SQL Server. Maximum score is 25 points. I will be covering some of the common but tricky queries like:- (i) Finding the nth highest salary of an employee. If your stuck, hit the "Show Answer" button to see what you've done wrong. to dump the database contents to the attacker). Almost every Software Quality Assurance Tester done black or white box testing of the software application developed with most popular commercial databases like MS SQL, Oracle SQL or open source databases like MySQL, PostgreSQL. ] Introduction There have been several blog posts about SQL Server Database Administrator interview questions. login about faq. Discuss each question in detail for better understanding and in-depth knowledge of SQL. 0 31 lubber 8 55. Get ready for your SQL interview. DBMS can be labeled as File Manager that accomplishes data in a database somewhat than convertible it in file arrangements. Here is a set of ten practice questions for the SQL200 series of SQL Programming courses. Database Research & Development: SQL Interview Questions the ultimate page and collection of more than 1600 basic and advance SQL Server interview Questions and Answers for Database Administrators and Developers. Count Your Score. NET, C# and SQL Server FAQs. The purpose of any exercise is to steadily develop skills and to acquire the automatic algorithms for fulfilling certain operations. Session Control Statements. Database Research & Development: SQL Interview Questions the ultimate page and collection of more than 1600 basic and advance SQL Server interview Questions and Answers for Database Administrators and Developers. Interview Questions and Answers - Part 1 sql dba alwayson interview questions - 1 One of the best known feature introduced in SQL Server 2012 is "AlwaysOn" which makes use of existing HA/DR features and provide additional features like Availability Groups. com, or call us directly at 1-(877) 536-4648. Let's Continue !! 1) What is DBMS?. SQL Server Interview Questions and Answers. Written by Administrator Thursday, 11 December 2008 14:11 -. Here in this list of SQL Server interview questions you will learn the most important questions to clear the interview. Personally, I have a lot more fun with mid-to-senior level positions as it opens the door to asking tricky C# and SQL interview questions just to see how well they know their stuff, and if they don't know, how they handle it. Please read our previous article where we discussed the most frequently asked SQL Server Triggers Interview Questions with Answers. From 21 to 40 out of 1772 sql server interview questions asked in various MNCs. Maximum score is 25 points. select data from 2 or more tables related by common attribute (table column). The issue here is that we do not understand what will be returned because we're not specific enough with what we're asking for in the Basic Sql Interview Questions! Whether. So you have finally found your dream job in SQL but are wondering how to crack the SQL Interview and what could be the probable 2019 SQL Interview Questions. SQL: Queries, Programming, Triggers Chapter 5 Database Management Systems 3ed, R. SQL queries most asked in. 0 – Part 3. Unless otherwise stated, the interpreter will support everything covered in this course. The test contains 25 questions and there is no time limit. It is different from generic SQL which is used by Oracle. SQL Interview questions and answers for software database developers, Database Testers and Database Administrators. This article basically gives you SQL Interview Questions for Testers so that tester will not face any. SQL - 438 SQL interview questions and 2558 answers by expert members with experience in SQL subject. Why SQL Server Common Questions Interview Questions? In this section you can learn and practice interview questions based on "SQL Server Common Questions" and improve your skills in order to face the interview, competitive examination and various entrance tests (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc. Does SQL Server on Linux support multiple instances on the same host? We recommend running multiple containers on a host to have multiple distinct instances. SQL Basic Aptitude Questions and Answers - This section contains Aptitude Questions and Answers on Basic SQL features including SQL Commands, SQL Command structures, SQL terminology etc. What Is SQL Profiler? SQL Profiler is a tool which allows system administrator to monitor events in the SQL server. If you're looking for SQL Interview Questions and Answer for Experienced or Freshers, you are at the right place. Go to the editor. Be prepared to discuss the different factors that impact SQL database performance, such as hardware, table indexes and query structure. System Control Statement. The case for fine-grained dependency injection. The test is not official, it's just a nice way to see how much you know, or don't know, about SQL. In Access, the client directly interacts with the Access file, in case there is some problem in the middle of a transaction, there are chances that an Access file can get corrupt. Hi, Any one can briefly tell about the basic interview question's for sql dba. This blog is the perfect guide for you to learn all the concepts related to SQL, Oracle, MS SQL Server and MySQL database. Can we hot add CPU to sql server? Yes! Adding CPUs can occur physically by adding new hardware, logically by online hardware partitioning, or virtually through a virtualization layer. Oracle PL SQL tutorial to teach you the basics of programming in PL/SQL like cursors, stored procedures, functions. Solved: Hello, I need some advice for an exercise about PROC SQL that I am doing as a prep for an exam. SQL Server Interview Questions and Answers: For All Database Developers and Developers Administrators. SQL administrators and technicians may spend a lot of time interacting with end users and teams who rely heavily on the databases. We use SQL Sentry to monitor our production ERP databases. SQL's query processing can perform many tasks. SQL Theory & How-To is an article that gives the answer to the two questions ie- how to Create complex, powerful, queries to take advantage of your table schemas and how to build complex queries on the fly. I’ve put together my best questions to ask during an interview when I’m hiring a senior database administrator for Microsoft SQL Server or Oracle. I would like to running C program is full screen and Meteor shower Effect. SQL (Structured Query Language) is a language to access RDBMS. for each presentation, I need to create 20 multiple choice questions, each with 4 options. Difference between SQL Server 2000 & SQL Server 2005 features, or new features of 2005 vs 2000. SQL clauses site was designed to help programmers and IT professionals, yet unfamiliar with SQL (Structured Query Language) to learn the language and use it in their everyday work. Here are a mix of SQL and PL/SQL questions. In this article, I am giving some examples of SQL queries which is frequently asked when you go for a programming interview, having one or two year experience on this field. We checked out a range of SQL interview questions posted online by SQL experts, and by those who have sat on both sides of the interview table. A free inside look at SQL Developer interview questions and process details for 155 companies - all posted anonymously by interview candidates. Where appropriate, the answers link to detailed explanations elsewhere in this book. A number of people have implemented Gadfly databases and transferred the SQL with few to no modifications from the implementation directly to Oracle or MS-Access, for example. Our website will help you test and improve your SQL and database knowledge. verify that the inserted data is correct. This SQL tutorial explains how to create, update, and drop SQL VIEWS with syntax and examples. This way your question is most likely to be answered. In my many years in Information Technology, I have performed so many SQL Server. Here are some complex SQL interview problems that are for people who are looking for more advanced and challenging questions, along with the answers and complete explanations. Sql Interview Questions and Answers. I have a few problems with MS SQL Server 2008R2, and would like to upgrade ASAP. From 21 to 40 out of 1772 sql server interview questions asked in various MNCs. 1) What is PL/SQL? PL/SQL stands for procedural language extension to SQL. It is always advisable to learn SQL Sever , before looking into these questions. Hardware Sizing Microsoft SQL Server. What is SQL? SQL is short for Structured Query Language and is used to communicate with relational databases. This section provides a useful collection of sample Interview Questions and Multiple Choice Questions (MCQs) and their answers with appropriate explanations. Several SQL statements are consolidated into a stored procedure and execute them whenever and wherever required. Frequently asked DBMS and SQL Interview Questions and answers for Freshers, Experienced developers & testers covering topics such as Record, Table, Transactions, Locks, Normalization, Foreign Key, Primary Key, Constraints, SQL Commands, Pattern Matching, SQL Joins, Views, Stored procedure, Trigger, Cluster & Non cluster Index. This course is designed to introduce students to Transact-SQL. Here, I am going to publish SQL Server Alwayson Interview Questions and Answers. Learn Database Management System, purpose of database and more. SQL is a standard query language used for maintaining the relational database and perform many different operations. All database professionals should know how to write, troubleshoot, and optimize SQL. Tests to Clear the Basic Database Concepts using the Structured Query Language, Prepare SQL Oracle to get job, to appear in placement, to appear in competitive exams, get notes and test papers for all concepts like query, Table, Structured Query. I am not going to categories the questions depending upon topics but rather have them one after one as you never know what interviewer is going to ask you next ;). As an applicant, you also need to focus on your confidence level and communication skills. So , learning this query is very important. to dump the database contents to the attacker). 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. This section will cover the most asked SQL Server interview questions by the interviewer so have a look on the following and do revise it when ever you go for the SQL Server interview. Today we discuss mysql sub-queries questions with answers. SQL's query processing can perform many tasks. ) with full confidence. What are the different storage classes in PL/1? 3. The test is not official, it's just a nice way to see how much you know, or don't know, about SQL. Whether a question involves multiple choice or live coding, we will give you hints as you go and tell you if your answers are correct or incorrect. What does SQL stand for? Structured Query Language Strong Question Language Structured Question Language 2. A total of 1,666 participants registered for the skilltest. So, just take a look at the tables by going through that link and it will be easy for you to understand the questions mentioned here. Boolean values are either True or False. Here we provide most common interview question and answers for sql and rdbms. Microsoft SQL Server is an RDBMS developed by Microsoft to store and manage the database. The available tests: Transact-SQL (demo). It is a language used to interact with the database, i. Check out the. A query can contain zero, one, or multiple JOIN operations. What is the SQL*Loader control file? The control file is a text file that contains DDL instructions. One of the best known feature introduced in SQL Server 2012 is “AlwaysOn” which makes use of existing HA/DR features and provide additional features like Availability Groups. It's no secret that SQL Server Developer jobs are in high demand. SQL to access and manipulate data in which of the following databases ?. Basic SQL Server Interview Questions SQL Server Interview Questions on Temporary Tables SQL Server Interview Questions on Indexes - Part 1 SQL Server Interview Questions on Indexes - Part 2 What is the difference between Having and Where clause What is the difference between a Temporary Table and a Table Variable What is the use of COALESCE in. The above questions are the frequently asked SQL Azure Interview Questions and Answers that are faced by the candidate during the interview. SQL Server Questions and Answers. Please follow this link for further information for availability. Embedded SQL Statements. 1) What is SQL? SQL stands for the Structured Query Language. 0 58 rusty 10 35. Level up your coding skills and quickly land a job. A JOIN locates related column values in the two tables. login about faq. This is a series of interview questions & answers on a new topic every day for SQL DBAs. This file holds all uncommitted transactions and SQL Server will use this file to check which earlier uncommitted. SQL Table SQL Database Tables are the building blocks of every RDBMS (Relational Database Management System). I have published SQL Server Interview Questions and Answers on many topics. SQL Query Interview Questions It's the time write SQL queries now. A successful SQL injection exploit can read sensitive data from the database, modify database data (Insert/Update/Delete), execute administration operations on the. SQL Interview Questions This page is dedicated to SQL frequently asked questions, and SQL Interview Questions with answers. Questions: 16 What is the SQL " IN " clause? Answers : 16 SQL IN operator is used to see if the value exists in a group of values. So, in this blog, you will find the interview questions based on complex SQL queries that you can practice online. In the details pane, right-click SQL Server and then click Restart, to stop and restart SQL Server. Also, in all technical interviews, 30–40 percent of questions will be from SQL. The SSDT update for July 2016 adds bug fixing and enhanced support for SQL Server 2016 features such as Always Encrypted and Temporal Table. AVG() – This functions returns the average value COUNT() – This functions returns the number of rows MAX() – This functions returns the largest value. Email This BlogThis! Share to Twitter Share to Facebook Share to Pinterest. Today, we will focus on a particular type and that is SQL Query Interview Questions. SQL to access and manipulate data in which of the following databases ?. Here are few of the sample question papers along with the answers. Entity Framework works well in enterprise scenarios where requirement is to develop a loosely coupled application. What's included in the purchase PDF file with the following: Refresher of SQL terminology, including sample SQL queries Answers to the following SQL interview questions Finding a row by using a simple equality Finding rows that contain a value as a part of a string Finding rows by using a comparison operator Finding rows that meet any of three. Having dispensed with the not-so-serious types, which we rarely answer, it's time to move on to the more serious and complex SQL questions. Introduction to SQL Interview Questions And Answers. Learning how to answer the SQL interview questions is a powerful skill which can make the difference between getting hired or not. SQL injection is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution (e. A Story of BI, BIG Data and SQL Server in Canada A Story of BI, BIG Data and SQL Server in Canada We focus on BI, Big Data and SQL Server, providing the latest news from Microsoft and the industry, sharing upcoming events, customer stories and SQL Server product information. Last month I wrote an article on the questions I find most useful for interviewing a SQL Server developer. This post contains Top SQL Interview Questions for Experienced as well as Freshers. These are the following common question that I faced in various TSQL interviews. SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. This section will cover the most asked SQL Server interview questions by the interviewer so have a look on the following and do revise it when ever you go for the SQL Server interview. It is designed in such a way that the first three days can be taught as a course to students requiring the knowledge for other courses in the SQL Server curriculum. Dear readers, these SQL Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of SQL. Go to the editor. There are given top list of PL/SQL interview questions with answer. This section will cover the most asked SQL Server interview questions by the interviewer so have a look on the following and do revise it when ever you go for the SQL Server interview. For enhanced security, portability and robustness of databases, the Oracle developers prefer PL/SQL than SQL. INNER JOIN is the same as JOIN; the keyword INNER is optional. d) SQL Server is the most secure of any of the major database platforms. sqlauthority. MySQL is an open-source database management system. These tricky queries may be required in your day to day database usage. I like your approach with SQL Server Interview Questions:. SELECT 'Customer' As Type, FirstName + ' ' + LastName AS ContactName, City, Country. Comprehensive, community-driven list of essential SQL interview questions. SQL PLSQL technical job interview questions of various companies and by job positions. You can search for your question to see if an answer has already been provided. This section provides a useful collection of sample Interview Questions and Multiple Choice Questions (MCQs) and their answers with appropriate explanations. Below is the category wise question count: Please click on the chapter name to. f) SQL Server reduces downtime by over 20% by migrating an SAP ERP environment to SQL Server. I have a table: id group data 1 a 10 2 a 20 3 b 10 4 b 20 I want to get ids of records with max 'data' value grouped by 'group', i. That's why we've selected a set of 50 SQL queries that you can use to step up your learning. How to Handle Sexual Harassment at Workplace I have got many requests to publish first set of MSSQL DBA Interview questions. SQL is a standard query language used for maintaining the relational database and perform many different operations. Many Thanks, Minny. The book is available worldwide. TRY_CONVERT() and FORMAT() functions are not available in SQL Server 2008 5. Database and SQL Interview Questions and Answers. You can use the menu to show just exercises for a specific topic. It is different from generic SQL which is used by Oracle. SQL QuickStart Guide is only 76 pages long but covers all those pesky questions that beginners usually have. NET/SQL Server job interviews. Our website will help you test and improve your SQL and database knowledge. SQL exam 70-461 questions and answers part 7. If they include the SQL routines provided by Oracle, great, but not really what was asked. SQL, a programming language used to communicate with databases, is one of the most useful skills to know for recruiting in the tech industry. This blog is the perfect guide for you to learn all the concepts related to SQL, Oracle, MS SQL Server and MySQL database. Database Research & Development: SQL Interview Questions the ultimate page and collection of more than 1600 basic and advance SQL Server interview Questions and Answers for Database Administrators and Developers. Create an application role and a secured password for the role. You administer a Microsoft SQL Server 2012 database named ContosoDb. And that has to done by writing only SQL queries. But what about a more advanced job, like SQL developer or database administrator? Recruiters will be interested in more than just your SQL knowledge; they will also need to know how savvy you are with databases in general. He has authored 12 SQL Server database books, 24 Pluralsight courses and has written over 4900 articles on the database technology on his blog at a https://blog. Find out here by taking this free test assessment. Oracle PL SQL tutorial to teach you the basics of programming in PL/SQL like cursors, stored procedures, functions. Blind SQL (Structured Query Language) injection is a type of SQL Injection attack that asks the database true or false questions and determines the answer based on the applications response. e) SQL Server delivers a 460% savings in annual cost of administration per database over Oracle. It is a language used to interact with the database, i. If they can mention a few of these and describe how they used them, even better. SQL Questions and Answers has been designed with a special intention of helping students and professionals preparing for various Certification Exams and Job Interviews. So we decided to share the SQL questions we give our candidates during interviews, you folks might find it useful. AVG() – This functions returns the average value COUNT() – This functions returns the number of rows MAX() – This functions returns the largest value. Also, T-SQL has a different implementation of DELETE and UPDATE than SQL. This diagram is about the semantics of SQL queries – it lets you reason through what a given query will return and answers questions like: Can I do WHERE on something that came from a GROUP BY? (no! WHERE happens before GROUP BY!) Can I filter based on the results of a window function?. What Is SQL? SQL (Structured Query Language) is a database which was design to. If you’ve been pursuing a career in SQL Server development, and you made it to the first interview, congratulations! But. They can be used by the IBM iSeries Access for Windows ODBC driver and OLE DB provider and the IBM Toolbox for Java JDBC driver. Every question paper consists of 40 questions and answers are given at the end. I am so grateful for your blog. It is an extension to the SQL developed by Sybase. Really looking forward to read more. Below Questions are related to Teradata Multiload Interview Questions: Q26. I am going to do my best to provide a good list of real time questions. Your blog is such a complete read. 2) Mention what is the difference between SQL and T-SQL? The difference between SQL and TSQL is that SQL is a query language to operate on sets, while TSQL is a proprietary procedural language used by MS SQL Server. This is continuation to my previous post, SQL Queries Interview Questions - Oracle Part 1, Where i have used PRODUCTS and SALES tables as an example. Pinal Dave is a SQL Server Performance Tuning Expert and an independent consultant. Since the questions are randomly selected, you will receive a different set of questions each time you start a test. SQL Interview Questions. f) SQL Server reduces downtime by over 20% by migrating an SAP ERP environment to SQL Server. SQL injection is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution (e. Earlier we have discussed the different types of SQL questions asked in the interview. SQL Server TSQL Interview Questions Part 11 SQL Server TSQL Interview Questions Part 12. SQL Interview Questions for Testers : In my previous articles I explained about different interview questions related to SQL. If not what is the scope of a table variable?, Interview Qs. This article will discuss the top-most PL/SQL interview question and answers. SQL databases provide administrators with a role-based access control system. SQL SERVER INTERVIEW QUESTIONS - If you are looking for SQL Interview Questions, here is the comprehensive list from basic to most advanced SQL server interview. SQL stands for Structured Query Language. Basic SQL Questions and Answers is a set of programming extensions from Sybase and Microsoft that add several features to the Structured Query Language (SQL). The number of questions on a SQL test seem to range from as few as 10 - 100 questions. DBA FYI Center - Job Interview Questions and Answers Are you a Database Administrator? Need to prepare for a job interview? We have selected a big collection of interview questions and answers for you. NUMERIC Data. You can use the menu to show just exercises for a specific topic. SQL CLAUSES. How to Handle Sexual Harassment at Workplace I have got many requests to publish first set of MSSQL DBA Interview questions. Whether a question involves multiple choice or live coding, we will give you hints as you go and tell you if your answers are correct or incorrect. 19 important SQL Server interview questionson replication. by Pinal Dave , Vinod Kumar, et al. Read the tag wiki's guidelines for requesting SQL reviews: 1) Provide context, 2) Include the schema, 3) If asking about performance, include indexes and the output of EXPLAIN SELECT. Q & A with 'SQL Server 2012' connection string related questions and topics. Most Asked SQL Query Interview Questions. Package specification: it acts as a public interface for your application which includes procedures, types, etc. SQL Server Interview Questions and Answers. Thanks for the A2A. This file holds all uncommitted transactions and SQL Server will use this file to check which earlier uncommitted. SQL Quiz is a free form of SQL training, which can be used over and over again until you are confident in your SQL skills. SQL 31 Questions | 554 Attempts SQL Server, IT & Computers: SQL Server 2047 Attempts MySQL,SQL Server,Structured Query Language(SQL). At the end of the Quiz, your total score will be displayed. There are given top list of PL/SQL interview questions with answer. In this article, I'll show you three SQL test exercises that, in my experience, are quite typical in data analyst job interviews. Dear readers, these SQL Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of SQL. SQL Server books online is the best place to read about SQL Server architecture. e) SQL Server delivers a 460% savings in annual cost of administration per database over Oracle. This post contains Top SQL Interview Questions for Experienced as well as Freshers. Explain the difference between a hot backup and a cold backup and the benefits associated with each. Oracle PL SQL tutorial to teach you the basics of programming in PL/SQL like cursors, stored procedures, functions. Frequently asked SQL Server/Developer Interview Questions and Answers | Collection top 20 SQL Server/SQL developer Interview questions and answers for freshers, beginners and experienced candidate/professional. To view all attacks, please see the Attack Category page. From basics up to questions asked on advanced concepts of SQL have been also covered in this article. Microsoft SQL Server articles, forums and blogs for database administrators (DBA) and developers. Optimizations, complex joins, and more. SQL Theory & How-To is an article that gives the answer to the two questions ie- how to Create complex, powerful, queries to take advantage of your table schemas and how to build complex queries on the fly. Create a SQL Server login that has VIEW SERVER STATE permissions. Pronounced "ess-cue-ell" and short for Structured Query Language, this incredible tool is a must-have for analyzing large data sets. If you're already familar with the basics of SQL, you can still use this as a refresher, and practice some SQL statements. Other T-SQL Queries Common Interview Questions from Interview Panels. SQL Query Interview Questions with Answers. PL/SQL Interview Questions. JSON Interview Questions JSON Interview Question for Freshers What is JSON ? JSON JavaScript Object Notation is language independent, lightweight data-interchange format, "self-describing" and easy to understand. If you plan to power the backend of your website using Microsoft SQL, Informix, IBM DB2, MySQL, Oracle, MS Access, Sybase, or another relational database management system, a SQL developer can help bring your web project to life. Really looking forward to read more. PL/SQL is an advance version of SQL. It functions similar to sql like connecting with database and executing the statements to add, delete and update the databases. SQL Server TSQL Interview Questions Part 11 SQL Server TSQL Interview Questions Part 12.