In this article, you will learn many simple and complex SQL queries asked in IT interviews. Let's take two tables which help in solving various queries. The name of the first table isStudent,and the name of the second table isSubject. The Student table consists ofStudent_ID, Stu_Name, ...
This function is used in Oracle, not in SQL and MySQL. Instead of NVL() function, MySQL have IFNULL() and SQL Server have ISNULL() function.55) Which function is used to return remainder in a division operator in SQL?The MOD function returns the remainder in a division operation.56) ...
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SQL Interview Questions and answers on Stored Procedures and Triggers What is a stored procedure? Stored Procedure is a function which contain collection of SQL Queries. Procedure can take inputs , process them and send back output. SQL INTERVIEW QUESTIONS AND ANSWERS 14 | P a g e 51.What ...
It is used to access and manipulate data in a database, including creating and modifying tables and columns and querying the data usingSQL commands. This post will undoubtedly give you some insights if you’re looking for questions and answers to use while you prepare for a SQL interview. In...
There are mainly two types of indexes in SQL Servers Clustered Index and Non-Clustered Index. Conclusion Above is the list of common interview questions which you can expect as an SQL server developer. The answers are for your reference you can read them in detail using other sources or artic...
Practical SQL Interview Questions and Answers 如果在国内打不开这些网站,或者阅读英文吃力的话,还是建议看《SQL21日自学通》。 SQL 中的子句【必考】 子句和JOIN是必考的,但是说由于表的联合相关的学习资料实在是太多了,都快说吐了,在此就不赘述了。一般面试中,SELECT之后应该是FROM,在每次输入SELECT语句时FROM也...
Prepare yourself for the industry by going through these Top MySQL Interview Questions and Answers!15. What is MERGE JOIN? MERGE JOIN is the most important join in SQL Server. In MERGE JOIN, your query plan is an effective query plan and you don’t need to make many changes to improve ...
It is also a core element of the open-source technology stack, LAMP (Linux, Apache, MySQL, and PHP). MySQL offers a multi-user access to databases. Checkout: MySQL Interview Questions & Answers In-Demand Software Development Skills JavaScript Courses Core Java Courses Data Structures Courses ...
This guide lists out a few of the most asked SQL interview questions and gives their answers such as JOINS, KEYWORDS, TRIGGERS and much more.