Frequently asked SQL Server Interview Questions and Answers for freshers, intermediate, and experienced which will definitely ace your SQL Server Interview.
SQL interview questions are asked in almost all interviews because database operations are very common in applications. SQL stands for Structured Query Language, which is a domain-specific programming language used for database communications and relational database management. SQL consists of standard c...
In the WHERE clause the data that is fetched from memory depending on a condition whereas in HAVING the completed data is first fetched and then separated depending on the condition. SQL INTERVIEW QUESTIONS AND ANSWERS 4 | P a g e 5.What is the difference between “Primary Key” and “Uni...
SQL Interview Questions for Freshers 1. What is the difference between a primary key and a unique key? Primary Key: The primary key is used to identify every record in a table uniquely. It ensures that NULL values are not present in the table. Unique Key: The unique key also identifies...
Basic SQL Questions 1. What are the types of SQL commands? SQL commands are grouped into the following categories: DDL (Data Definition Language): Commands like CREATE, ALTER and DROP that define or modify database structure. For example, creating a new table in a database involves a CREATE...
If you've got an SQL interview coming up, you'll almost certainly be asked about JOIN clauses. Make sure you're prepared by practicing these 5 tough questions on JOINs in advance.
SQL Interview Questions 1. What is Pattern Matching in SQL? 2. How to create empty tables with the same structure as another table? 3. What is a Recursive Stored Procedure? 4. What is a Stored Procedure? 5. What is Collation? What are the different types of Collation Sensitivity? 6....
SQL Interview Questions http://career.guru99.com/top-50-sql-question-answers/ 1. What is DBMS? A Database Management System (DBMS) is a program that controls creation, maintenance and use of a database. DBMS can be termed as File Manager that manages data in a database rather than ...
Set 1 - SQL Interview Questions and Answers 1) State the different subsets of SQL. There are basically three subsets of SQL: Data Definition Language, or DDL, which lets the candidate carry out different functions and perform tasks on the Database, is one of the most important subsets of ...
24 :: What is sql Correlated Subquery? Correlated Subquery is a subquery that is evaluated once for each row processed by the parent statement. Parent statement can be Select, Update or Delete. Use CRSQ to answer multipart questions whose answer depends on the value in each row processed by...