What is an aggregate function in SQL?

Asked by Last Modified  

3 Answers

Learn MS SQL

Follow 2
Answer

Please enter your answer

Kalaiselvi

Online Mathematics tutor with 8 years experience(Online Classes for 10th to 12th)

An aggregate function performs a calculation on a set of values, and returns a single value. Except for COUNT(*) , aggregate functions ignore null values. Aggregate functions are often used with the GROUP BY clause of the SELECT statement.
Comments
Dislike Bookmark

"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

An aggregate function in SQL performs a calculation on a set of values, returning a single value (e.g., SUM, AVG, COUNT).
Comments
Dislike Bookmark

I am online Quran teacher 7 years

An aggregate function performs a calculation on a set of values, and returns a single value. Except for COUNT(*) , aggregate functions ignore null values. Aggregate functions are often used with the GROUP BY clause of the SELECT statement.
Comments
Dislike Bookmark

View 1 more Answers

Related Questions

I need your help to choose my career as I have three years of gap between my education. I know SQL. Can anyone tell me should I choose MS SQL server or oracle because I am interested in the database? Which one will be better to learn to get into the IT industry? Please help me! Thank you!
As you are strong and interested in SQL, why not to choose ETL Testing? It has a good career ahead in data projects. To survive in the market, you need both Oracle & SQL Server. Actually, both are almost same but are different products.
Santhosh
I have completed my BSc (CS) and post that I have wroked for Infosys Bpo (1.5 Years) and after that I made a mistake and joined an institute and started working on Biometric system and its been around 3years. Now I find no growth here and I want to switch back to an MNC, and I get interview calls but when they come to know that I am working in an institute then they dont call back. Now I am totally confused what to do.
Now you should be learn a new technology then u can switch in new field. in case of Database if u interested then u can learn BASIC OF SQL SERVER n then Advance MS SQL SERVER then u can switch in database like a DBA successfully.
Deep
My name is Kartik, I have 6 years of experience in Data analysis. I have experience on BI, Trackwise, Siebel and Oracle, Ms Access for fetching reports and for visualisation of data we use MS excel. Could please suggest me a certification or course, which can help me in career growth and to improve my skill set? I have a bent towards Analytics.
Hi Kartik, It is very good to know your experience in the field of Data Analytics. You just master those skills so that it is easy to sell your skill. I believe you are good at BIG DATA. If you possess...
Kartik
0 0
5
In how many days can i learn sql server dev.?
If saturday and sunday class then within 2 month. means 36 hours u can learn properly SQL Development course.
Glen

Hello All,

Hope you are doing well. I am having experience of more than 6+ years into HR Recruitment wants to change my profile either into some analytical techno functional role or BA or any Operations profile. Kindly suggest some good exciting career opportunity.  
Hello Prafulla, As per your previous experience, you can go for salesforce course. Since you are from the non-IT background, you can do Salesforce Admin.
Prafulla

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Primary Key VS Unique Key In Database.
PRIMARY KEY UNIQUE KEY Primary key is a set of one or more fields/columns of a table that uniquely identify a record in database table. Primary keys must contain unique values. Unique-key...

Umasankar Natarajan

0 0
0
What DBA should do to avoid database from running out of space?
Disk space is something that really critical for SQL Server, and if we don’t keep a close eye on available disk resources, it could cause database failures or hamper depended on the major business...

Meetopus

0 0
0
Cursors In SQL Server
First thing first Usage of Cursors is not encouraged in SQL Server as they are slow. You may go with While loop if you need to iterate through a recordset. Cursor is a database object to retrieve data...

Redbush Technologies Pvt.Ltd.

0 0
0
10 Cool SQL Optimizations That Do Not Depend On The Cost Model
Today, we don’t want to talk about cost based optimisation, i.e. optimisations that depend on a database’s cost model. We’ll look into much simpler optimisations that can be implemented...

Hasnain

2 0
0
Understanding Indexes In SQL Server
Indexes in SQL Server are created on columns in tables or views. The index provides a faster way to look up data based on the values in those columns.For example, if you create an index on the primary...

Redbush Technologies Pvt.Ltd.

0 0
0

Recommended Articles

Make a Career in Mobile Application Programming

Almost all of us, inside the pocket, bag or on the table have a mobile phone, out of which 90% of us have a smartphone. The technology is advancing rapidly. When it comes to mobile phones, people today want much more than just making phone calls and playing games on the go. People now want instant access to all their business...

Read full article >

Make a Career as a BPO Professional

Business Process outsourcing (BPO) services can be considered as a kind of outsourcing which involves subletting of specific functions associated with any business to a third party service provider. BPO is usually administered as a cost-saving procedure for functions which an organization needs but does not rely upon to...

Read full article >

Why Should you Become an IT Consultant

Information technology consultancy or Information technology consulting is a specialized field in which one can set their focus on providing advisory services to business firms on finding ways to use innovations in information technology to further their business and meet the objectives of the business. Not only does...

Read full article >

Learn Hadoop and Big Data

Hadoop is a framework which has been developed for organizing and analysing big chunks of data for a business. Suppose you have a file larger than your system’s storage capacity and you can’t store it. Hadoop helps in storing bigger files than what could be stored on one particular server. You can therefore store very,...

Read full article >

Find MS SQL Training near you
MS SQL Training in Bangalore
MS SQL Training in Hyderabad
MS SQL Training in Mumbai
MS SQL Training in Pune
MS SQL Training in Delhi
MS SQL Training in Chennai
MS SQL Training in Gurgaon
MS SQL Training in Noida
MS SQL Training in Faridabad
MS SQL Training in Ghaziabad

Looking for MS SQL Training?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you