Here is the latest list of 70+ most asked SQL interview questions and answers. Prepare yourself to crack an SQL interview on the first attempt!
select tab1.col1, tab2.col2,tab3.col3 (columns to display) from table1 Join ///Any type of join table2 on tab1.col1=tab2.col1 //any matching columns Join ///Any type of join table3 on tab 2.col1=tab 3.col1 //any matching columns Advanced SQL JOINS Interview Questions for...
A list of top frequently askedSQL Serverinterview questions and answers are given below. 1) What is SQL Server? SQL Server is the RDBMS system provided by Microsoft which functions mainly as retrieving and storing the data as per user request. Sometimes it is mistakenly referred as SQL, but ...
and you may choose from a wide range of SQL courses to build a solid foundation. As we constantly say, you need to practice SQL, and a practice set of SQL questions gives you plenty of possibilities to do so. Even if you are now a beginner, you can become a SQL specialist in the ...
PlSQL Developer Interview Questions 21) What is the difference between Entity, Attribute, and Tuple? Entity: A significant thing about which some information is required.For exp:EMPLOYEE (table). Attribute: Something that describes the entity.For exp:empno, emp name, emp address (columns). Tuple...
In this blog post, you are going to find a list of top 25 SQL interview questions and answers about indexes which have been often asked.
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. ...
some of the most asked questions and a few that should be asked but often are not. We’ll be using SQL Server 2016 for the examples and a tool, for SQL Server query execution plan analysis,ApexSQL Plan, to explore the effects of indexes on a typical business problem: A table of ...
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MySQL Interview Questions For Freshers 1) What is SQL Server? Microsoft created SQL Server, one of the database management systems (DBMS).DBMSare computer software programs that communicate with databases, users, and other programs. Data collection and analysis, as well as the definition, querying...