15. What are UNION, MINUS, and INTERSECT in SQL? UNION: Union operation combines results from two queries, and removes duplicates. MINUS: Minus operation returns rows from the first query that are not in the second query. INTERSECT: Intersect returns rows that are common to both queries. 16...
SQL or Structured Query Language, is a programming language designed for managing and querying relational databases. It allows you to create, read, update, and delete data in databases, making it essential for working with data-driven systems. It forms the backbone of most modern applications, ma...
SQL Job Interview Questions and Answers 1:: What is SQL (Structured Query Language)? SQL is an English like language consisting of commands to store, retrieve, maintain & regulate access to your database. Read More 2:: What is the SQL*Plus?
Structured Query Language (SQL) is the standard programming language used by database administrators and data analysts to query databases. It is widely used in the programming languages of websites, apps, and other platforms. It is used to access and manipulate data in a database, including cre...
Query 4: Write a query in SQL to find the minimum and maximum number from the integer column: ADVERTISEMENT ADVERTISEMENT Sol: Syntax to find the maximum and minimum number from the column: SELECTMAX(Column_Name),MIN(Column_Name)FROMTable_Name; ...
A subquery is a query which generally used within the main Query. It is generally embedded with a where clause. Below is the syntax of a subquery. The subquery executes before the main query. Q9: Difference between correlated query and subquery in SQL Server. ...
Intermediate SQL JOINS Interview Questions 11. Distinguish between nested subquery, correlated subquery, and join operation. Subquery–Queries can be embedded in other queries. Therefore, an outer query is called the main query and the Internal queries are called subquery. Nested query–The inner qu...
Are you preparing for your SQL developer interview? In this blog post, we will take a look at some of the most common sql query interview questions and give you some tips on how to answer them. So, whether you’re just starting out in your career or you’re preparing for an interview...
Non-Relational Database Management Systems - Mostly referred to as NoSQL, stores data in non-tabular format. 12. What is the difference between SQL and MySQL? Hide Answer Structured Query Language is utilized for handling and modifying data in relational databases. With SQL, you can generate an...
choice and encapsulates the code needed to manipulate the data. Therefore we don’t need to directly use the SQL; we can interact instantly with an object from our code, instead of a database table. The ORM tool translates the interaction into an SQL query and executes it in the database...