Following are some very important Complex SQL Queries Examples with answers. I have tried to explain each and every query in detail so that everyone will get idea of how it is executed step-by-step. In SQL and PL SQL interviews we require to know the key and important complex sql queries...
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...
SQL Server for more than 10 years.SQL Questions and SQL Queries is a collection of SQL questions frequently asked in placement papers, interviews and other SQL competitive examinations, .NET competitive examinations, and Java competitive examinations.SQL covers many database related query categories suc...
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 records, table is not having a unique and having duplicate records. 8. What is XACT_ABORT ON? 9. How to filter nested st...
Summary: This white paper illustrates how Microsoft SQL Server Integration Services (SSIS) can be used in conjunction with commodity hardware or virtual machines running in Microsoft Azure to build elastic, highly available, and highly scalable ETL solutions. Authors: Joe Quint, Steve Howard, Patrick...
So this was the list of all the important PL/SQL interview questions and answers that are very frequently asked in the interviews. If you found any information incorrect or missing in above list then please mention it by commenting below. ...
This gets asked in the interviews a lot and I get confused everytime.Perhaps my basics aren't as clear. So I was hoping ...","body@stringLength":"509","rawBody":" Hi everyone,Apologizing in advance for this very basic SQL join question. This gets asked in the interviews a lot and...
Learn how to optimize the queries written in SQL to make them execute faster and more memory efficient. SQLSQL Interviews Preparations Material Resources - Feb 21, 2023. SQL is a must-known programming language for data people, and many modern jobs have SQL as a prerequisite. Here are mater...
Frequently Asked Questions What are the functions of SQL? SQL functions are a set of statements that perform a specific task. Generally, the SQL functions take inputs, perform certain operations, and return results as a single value or a table. They run in the database to perform activities...
Last week I had a wonderful conversation with Ryan Atkinson, creator and founder of theTechGuidePodcast. We discussed my career journey and advice aimed to help those early in a technical career. He asked great questions that had me revisiting my old self to try to help bring in some insigh...