(90% asked PL SQL Interview Questions) Answer: 1.To create unique index you must have CREATE ANY INDEX privilege.Here the concept is bit different.User needs to check the values of the table to create unique index.If table contains uniquely identified values in specified column then you shoul...
This is one of the most frequently askedSQL Interview Questionsin the interview. 6) How can you define Primary Key? A Primary Key is basically a column that verifies each row in a table. It can also be a set or cluster of columns for identifying the number of rows in a table. The s...
(Mostly asked in Interview Questions For SQL) Answer: There are following types of indexes used while Indexing in SQL: 1.Normal index 2.Unique Index 3.Bit Map Index 4.Composite Index 5.B-Tree Index(Oracle considered Normal indexes as B-Tree Indexes) 6.Function Based Index 7.Clustered ...
A query, in SQL, is a command used to request data or update information from a database table or combination of tables. Users can write and execute queries to retrieve, delete or update information in a database. Usually, a query response returns data from different tables within the data...
What are the different type of SQL or different commands in SQL? Ans: Frequently asked SQL Interview Questions 1.DDL – Data Definition Language.DDL is used to define the structure that holds the data. 2.DML– Data Manipulation Language ...
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 Server Interview Questions and Answers Book is your comprehensive guide to excelling in interviews for SQL Server development and administration roles. Covering a wide range of topics from basic SQL queries to advanced database optimization techniques, this book ensures you’re well-prepared to ta...
5. What are the user roles available in SSRS? 6. Can you write a query to find nth highest salary of an employee? 7. Write a query to delete duplicate records from a table. Note: Write queries that suits the below situation. A table is having a unique key and having duplicates ...
Query Relation Database using GenAI and Spring AI LLMs are quite good at producing the source code when they are provided enough context information and asked very clear questions. The same is true for generating SQL queries when they are provided the table/column information through DDL statement...
Top 10 Advanced Data Science SQL Interview Questions You Must Know How to Answer- Jan 27, 2023. In this article, we will give a list of commonly asked SQL interview questions to help you prepare for your coming technical interview.