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SQL: Group By,  Having, Min, Max Sum
 
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Learn to summarize yoru data using the SQL Aggregates such as count and sum and the GROUP BY and HAVING clauses of the SELECT statement
Views: 155956 Michael Fudge
SQL Aggregation queries using Group By, Sum, Count and Having
 
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From SQL Queries Joes 2 Pros (Vol2) ch4.1. Learn up to write aggregated queries.
Views: 181580 Joes2Pros SQL Trainings
PL/SQL Tutorial 6 (Oracle): Sum Command
 
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PL/SQL Tutorial 6 (Oracle): Sum Command In this tutorial I show you how to use the sum command in PL/SQL. It's used to sum numbers in your data tables. Source Code: https://github.com/mitchtabian/SQL-tutorials Subscribe to my Blog and YouTube channel to get notifications when new FREE coding tutorials are posted! Blog: http://www.codingwithmitch.com/
Views: 140 CodingWithMitch
HAVING clause and difference with GROUP BY & WHERE clause in SQL statement
 
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Using HAVING clause and difference with GROUP BY & WHERE clause in SQL statement Link for scripts on my blog: https://sqlwithmanoj.com/2015/05/23/sql-basics-difference-between-where-group-by-and-having-clause/ Check the whole "SQL Server Basics" series here: https://www.youtube.com/playlist?list=PLU9JMEzjCv14f3cWDhubPaddxRvx1reKR Check my SQL blog at: http://sqlwithmanoj.com/ Check my SQL FB Page at: https://www.facebook.com/sqlwithmanoj
Views: 71746 SQL with Manoj
SQL with Oracle 10g XE - Using the COUNT and SUM Functions
 
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In this video I use the COUNT and SUM functions available to the SQL language. I used the COUNT function to add up the number of records in my query. This function works well with all data types and will just count the number or records that result from the conditions of your query. The SUM function will add up the numeric values and produce a total amount of a column. When using a function be sure to use parenthesis around the column you are performing the function on. This video is part of a series of videos with the purpose of learning the SQL language. For more information visit Lecture Snippets at http://lecturesnippets.com.
Views: 8036 Lecture Snippets
Oracle Tutorial - Aggregate Functions AVG | SUM | MIN | MAX | COUNT
 
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Oracle Tutorials - Aggregate Functions avg () Sum () Min () Max () Count ()
Views: 131 Tech Acad
Mas funciones Oracle count, avg, min, max, sum, group by
 
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En esta lección enseñamos como utilizar las funciones mas importante de SQL. Siguenos en - http://www.aprendedesarrollo.com/
Views: 3253 Alejandro Alvarez
Understanding the use of GROUP BY clause in SQL
 
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Join discussion: http://www.techtud.com/video-lecture/understanding-group-clause-sql IMPORTANT LINKS: 1) Official Website: http://www.techtud.com/ 2) Virtual GATE: http://virtualgate.in/login/index.php Both of the above mentioned platforms are COMPLETELY FREE, so feel free to Explore, Learn, Practice & Share! Our Social Media Links: Facebook Page: https://www.facebook.com/techtuduniversity Facebook Group: https://www.facebook.com/groups/virtualgate Google+ Page: https://plus.google.com/+techtud/posts Last but not the least, SUBSCRIBE our YouTube channel to stay updated about the regularly uploaded new videos.
Views: 77413 Techtud
The SUM(CASE WHEN pattern in SQL to compute valued columns
 
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Here we compute columns to get new and repeat revenue using 2 SUM's which aggregate the binary outcome of a case statement. This is a highly useful pattern in SQL and business analytics.
Views: 4740 Jeffrey James
The SUM Function (Introduction to Oracle SQL)
 
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Learn how to add values using the SUM function. The full Introduction to Oracle SQL course is available here: https://www.databasestar.com/introduction-to-oracle-sql-course/
Views: 174 Database Star
Oracle Clauses(distinct,having,group by,order by,from) and avg(),sum(),count
 
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Oracle Clauses(distinct,having,group by,order by,from) and avg(),sum(),count
Views: 31 Manohar Sambaa
Oracle SQL Training Bangladesh : sum
 
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Oracle SQL Training Bangladesh : Group Function sum
Views: 96 devnetbd devnetit
SQL, sum function,  group by clause
 
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continuation of sum function of SQL and use subquery
Views: 7448 hammadshams
Tutorial#53  Count and Sum  Aggregate Function in Oracle SQL Database| Group by Function in SQL
 
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Explaining How to get Count and Sum Value in Oracle Database in others words what is the aggregate function in Oracle or what are the types of aggregate function in SQL An Aggregate function is a function where the values of multiple rows are grouped together to form a single value of more significant meaning or measurements such as a set, a bag or a list or Aggregate Function in Oracle SQL Database or Aggregate Function in SQL or How to use Count and sum Aggregate Function in Oracle or Types of Aggregate function in SQL Assignment: Assignment link will be available soon: SQL basics, create table oracle, SQL functions, SQL queries, SQL server, SQL developer installation, Oracle database installation, SQL Statement, OCA, Data Types, Types of data types, SQL Logical Operator, SQL Function,Join- Inner Join, Outer join, right outer join, left outer join, full outer join, self-join, cross join, View, SubQuery, Set Operator. Follow me on: Facebook Page: https://www.facebook.com/LrnWthr-319371861902642/?ref=bookmarks Contacts Email: [email protected] Instagram: https://www.instagram.com/equalconnect/ Twitter: https://twitter.com/LrnWthR
Views: 41 EqualConnect Coach
SQL Простая аналитика. Работа функций sum(), min(), max(), avg(), count(). HAVING and WHERE.
 
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Если есть вопросы и тд: https://vk.com/id32132041 - страница в ВК [email protected] - почта Описание видео: Во втором уроке мы научимся выполнять элементарные операции над данными. Рассмотрим простейшие функции sum(), min(), max(), avg(), count(). Краткое описание каждой из них: 1. sum() - возвращает сумму всех, либо только уникальных, значений в выражении. Аргументы: ALL Применяет агрегатную функцию ко всем значениям. ALL является параметром по умолчанию. DISTINCT Указывает, что функция SUM возвращает сумму только уникальных значений. 2. min() и max() - возвращает минимальное/максимальное значение выражения. 3. avg() - возвращает среднее арифметическое группы значений. Аргументы: ALL Применяет агрегатную функцию ко всем значениям. ALL является параметром по умолчанию. DISTINCT Указывает, что функция возвращает среднее арифметическое только уникальных значений. 4. count() - возвращает количество элементов в группе. Аргументы: ALL Применяет агрегатную функцию ко всем значениям. ALL является параметром по умолчанию. DISTINCT Указывает, что функция возвращает среднее арифметическое только уникальных значений, не равных NULL. ссылка на скачивание файла: https://drive.google.com/open?id=1MCd5ZA460qPWNeJWF47PUCyI4N17gA2n
Views: 463 KsAndr
GROUP BY with Aggregate functions in SQL statement
 
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Using "GROUP BY" clause with Aggregate functions in SQL statement Check the whole "SQL Server Basics" series here: https://www.youtube.com/playlist?list=PLU9JMEzjCv14f3cWDhubPaddxRvx1reKR Check my SQL blog at: http://sqlwithmanoj.com/ Check my SQL FB Page at: https://www.facebook.com/sqlwithmanoj
Views: 44743 SQL with Manoj
TUTORIAL-3 Select, functions like min, max, count, sum, avg in oracle database
 
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select, functions like min, max, count, sum, avg in oracle database. Demonstration of working on a table and data in it. Please like and subscribe us.
Views: 121 Let's Learn Pro
Running Sum using Oracle
 
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Running Sum using Oracle
Views: 1454 CONNECT TO LEARN
SQL Aggregate Functions - SUM, AVG(n), COUNT, MIN, MAX Functions | Database Management System
 
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Lecture By: Mr. Varun Singla Facebook page link : https://www.facebook.com/gatesmashers/
Views: 35132 Gate Smashers
12 of 15 SQL Basics with Oracle - Aggregate (grouping) functions and the GROUP BY clause
 
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This video explains the GROUP BY clause and some of the aggregate functions: sum, count, average, maximum, minimum, count(distinct ...), etc. An example of using an aggregate function would be to group students by major and only show the number of students in each major, not individual student information. (12 of 15) There is also an "Advanced SQL" series. (Search for "databasemec" for tutorials using SQL Server.)
Views: 5587 Jennifer Kreie
Oracle Analytical functions Sum , Lead , Lag and Avg
 
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This video tutorial explains Oracle Analytical functions further continuing from my previous video. We demonstrate practical usage of these functions with examples. For Software used in the video refer : www.querylight.in
Views: 3061 Query Light
Analytical Functions in oracle explained with real examples
 
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This video explains analytical functions and how they are implemented in real projects. Analytical functions are somewhat similar to aggregate functions,but they offer much more. Why use analytical function ? They allow you to write fast and concise queries which otherwise will involve self join and long processing times They allow you to perform aggregate functions independently on sets of partitions. You can access values from previous rows in current row and you can restrict the window on which you want to apply this analytical function. I have given additional practice exercises along with the dataset so that you can comfortably work with analytical functions. You can find the sample problems along with dataset in the below link. http://www.internshipsfromhome.com/oracle-analytical-functions-ddl-and-dml/
Views: 24835 Tech Coach
Aggregate functions(Sum,max,count) in SQL,Group by & having clause, order by clause by Jatin Mittal)
 
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Application of Oracle SQL aggregate functions max, min, sum,count and Grouping the data with example of Sal column from emp table by using group by clause along with Having clause to put conditions on aggregate functions ,and order by clause in ascending and Descending order are covered
Views: 80 TECHNICAL CAMPUS
SQL Server video :- Explain aggregate functions,group by clause and having keyword ?
 
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For more such videos visit http://www.questpond.com For more such videos subscribe https://www.youtube.com/questpondvideos?sub_confirmation=1 See our other Step by Step video series below :- Learn SQL Server Step by Step http://tinyurl.com/ja4zmwu Learn MSBI Step by Step in 32 hours:- https://goo.gl/TTpFZN Learn Data Science in 1 hour :- https://tinyurl.com/y5o7qbau Learn angular tutorial step by step https://tinyurl.com/ycd9j895 Learn C# Step by Step https://goo.gl/FNlqn3 Learn Design Pattern Step by Step https://goo.gl/eJdn0m Learn Azure Step by Step :- https://tinyurl.com/y6fmrech Learn Data structures & algorithm https://tinyurl.com/ybx29c5s Learn MVC Core step by step :- http://tinyurl.com/y9jt3wkv Learn ASP.NET MVC 5 step by step :- https://tinyurl.com/y6g69txf Learn Xamarin Mobile Programming Step by Step :- https://goo.gl/WDVFuy Learn SharePoint Step by Step in 8 hours:- https://goo.gl/XQKHeP Learn Tableau step by step :- https://tinyurl.com/kh6ojyo Preparing for C# / .NET interviews start here http://www.youtube.com/watch?v=gaDn-sVLj8Q visit for 600+ videos @ http://www.questpond.com In this video we will try to understand aggregate function,group by clause and having keyword. This is also one of the favorite SQL Server interview questions as well. We are also distributing a 100 page Ebook ".NET Interview Question and Answers". If you want this ebook please share this video in your facebook/twitter/linkedin account and email us on [email protected] with the shared link and we will email you the PDF.
Views: 196858 Questpond
SQL   2  Select  Distinct  Where  Order by  Having  In  Like   Join  Exists  Sum  Count  Max  Min
 
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Deuxième vidéo-tutoriel SQL - Select. Distinct. Where. Order by. Having. In. Like. Join. Exists. Sum. Count. Max. Min. Avg. Cast. Union. Intersection. Except. Create View.
Views: 303 emt
Cumulative Sum Calculation in Oracle Database
 
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cumulative sum in oracle find cumulative salary of an employee cumulative salary meaning
Views: 248 Adam Tech
HAVING BY, GROUP BY, MIN, MAX, AVG FUNCTIONS in Oracle SQL
 
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Oracle SQL Tutorials, How to select statements with having by, group by, min, max, avg functions in Oracle SQL
Select Sum, Distinct, In, Null on Oracle in telugu
 
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#KOTHA_ABHISHEK http://htmlintelugu1.blogspot.com http://cssintelugu1.blogspot.com http://javascriptintelugu1.blogspot.com http://sqlintelugu1.blogspot.com http://javaintelugu1.blogspot.com
Views: 627 KOTHA ABHISHEK
GROUP BY with HAVING (Introduction to Oracle SQL)
 
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Combine the HAVING clause with GROUP BY to filter records. The full Introduction to Oracle SQL course is available here: https://www.databasestar.com/introduction-to-oracle-sql-course/
Views: 184 Database Star
How to sum value in Oracle SQL
 
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How to sum value in Oracle SQL
Difference between where and having in sql server
 
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sql server where vs having sql server group by where having group by having sql server In this vide we will discuss the difference between where and having caluses in sql server. Let us understand the difference with an example. To calculate total sales by product, we would write a GROUP BY query as shown below SELECT Product, SUM(SaleAmount) AS TotalSales FROM Sales GROUP BY Product Now if we want to find only those products where the total sales amount is greater than $1000, we will use HAVING clause to filter products SELECT Product, SUM(SaleAmount) AS TotalSales FROM Sales GROUP BY Product HAVING SUM(SaleAmount) ] 1000 If we use WHERE clause instead of HAVING clause, we will get a syntax error. This is because the WHERE clause doesn’t work with aggregate functions like sum, min, max, avg, etc. SELECT Product, SUM(SaleAmount) AS TotalSales FROM Sales GROUP BY Product WHERE SUM(SaleAmount) ] 1000 So in short, the difference is WHERE clause cannot be used with aggregates where as HAVING can. However, there are other differences as well that we need to keep in mind when using WHERE and HAVING clauses. WHERE clause filters rows before aggregate calculations are performed where as HAVING clause filters rows after aggregate calculations are performed. Let us understand this with an example. Total sales of iPhone and Speakers can be calculated by using either WHERE or HAVING clause Calculate Total sales of iPhone and Speakers using WHERE clause : In this example the WHERE clause retrieves only iPhone and Speaker products and then performs the sum. SELECT Product, SUM(SaleAmount) AS TotalSales FROM Sales WHERE Product in ('iPhone', 'Speakers') GROUP BY Product Calculate Total sales of iPhone and Speakers using HAVING clause : This example retrieves all rows from Sales table, performs the sum and then removes all products except iPhone and Speakers. SELECT Product, SUM(SaleAmount) AS TotalSales FROM Sales GROUP BY Product HAVING Product in ('iPhone', 'Speakers') So from a performance standpoint, HAVING is slower than WHERE and should be avoided when possible. Another difference is WHERE comes before GROUP BY and HAVING comes after GROUP BY. Difference between WHERE and Having 1. WHERE clause cannot be used with aggregates where as HAVING can. This means WHERE clause is used for filtering individual rows where as HAVING clause is used to filter groups. 2. WHERE comes before GROUP BY. This means WHERE clause filters rows before aggregate calculations are performed. HAVING comes after GROUP BY. This means HAVING clause filters rows after aggregate calculations are performed. So from a performance standpoint, HAVING is slower than WHERE and should be avoided when possible. 3. WHERE and HAVING can be used together in a SELECT query. In this case WHERE clause is applied first to filter individual rows. The rows are then grouped and aggregate calculations are performed, and then the HAVING clause filters the groups. Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/difference-between-where-and-having-in.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/difference-between-where-and-having-in_15.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html Full SQL Server Course https://www.youtube.com/playlist?list=PL4cyC4G0M1RQ_Rm52cQ4CcOJ_T_HXeMB4 All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 72915 kudvenkat
08. Oracle Database Tutorial - SELECT Operators - DECODE, CASE, NVL, NVL2, SUM, COUNT etc
 
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This video tutorial on Oracle database provides detailed information on various operators used in SELECT statements. You can visit Oracle Database related videos here : https://www.youtube.com/watch?v=cDqlT7O8H0Q&list=PLRt-r4QiDOMfMmVU-8145pLcBxIdvAt8f&index=1 Website: http://guru4technoworld.wix.com/technoguru Facebook : https://www.facebook.com/a2zoftech/ Blog: http://dronatechnoworld.blogspot.com
Views: 127 Sandip M
Oracle SQL Video Tutorial 31  - HAVING Clause
 
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Oracle SQL Video Tutorials 31 - HAVING Clause explained.In This Oracle SQL Tutorial for Beginners, I have explained basics of SQL.These examples work on Oracle 10g and Oracle 11g database. These helps youto understand Oracle Joins and helps beginners. Iam going to add more tutorials on Oracle DBA, Oracle RAC and Oracle PL/SQL.All Oracle sql tutorial with examples are executed on Oracle 11g using Oracle SQL Developer.
Views: 3281 Just Channel
PL-SQL tutorial 16 - How to calculate sum of sal column
 
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Hello friends today i'm going to explain to you how to calculate total sum of sal column using deptno Oracle database Unbeatable,Unbreakable Platform..
Views: 2023 Oracle World
Tutorial 49 : Oracle Aggregate Functions. MAX || MIN || COUNT || AVG || SUM
 
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Hi Friends! Here we are learning about Oracle Aggregate Functions. Such as MAX(), MIN(), COUNT(), AVG() and SUM(). Hope the concept and example would be clear to you. For any confusion or doubt let me know in comment box. My Facebook Page Link : https://www.facebook.com/yoursmartcode Thanks! Happy Coding.
Views: 24 YourSmartCode
Basic aggregate functions in Oracle plsql.
 
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Understanding basic aggregate functions in pl sql. A simple pl sql tutorial which demonstrate how to use basic aggregate functions like sum, avg, count, max and min.
Views: 361 Subhroneel Ganguly
SQL CASE
 
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Jamie King of Neumont University demonstrating CASE.
Views: 32784 Jamie King
SQL GROUP BY Clause | Oracle SQL Tutorial Videos | Mr.Vijay Kumar
 
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SQL GROUP BY Clause | Oracle SQL Tutorial Videos | Mr.Vijay Kumar ** For Online Training Registration: https://goo.gl/r6kJbB ► Call: +91-8179191999 💡 Visit Our Website for Classroom Training: https://nareshit.in/oracle-training/ 💡 For Online Training: https://nareshit.com/oracle-online-training/ #OracleOnlineTraining #OracleCourse #oracleCoaching #OracleTraining -------------------------- 💡 About NareshIT: "Naresh IT is having 14+ years of experience in software training industry and the best Software Training Institute for online training, classroom training, weekend training, corporate training of Hadoop, Salesforce, AWS, DevOps, Spark, Data Science, Python, Tableau, RPA , Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silver light, Linq, SQL Server, Selenium, Android, iPhone, C Language, C++, PHP and Digital Marketing in USA, Hyderabad, Chennai and Vijayawada, Bangalore India which provides online training across all the locations -------------------------- 💡 Our Online Training Features: 🎈 Training with Real-Time Experts 🎈 Industry Specific Scenario’s 🎈 Flexible Timings 🎈 Soft Copy of Material 🎈 Share Videos of each and every session. -------------------------- 💡 Please write back to us at 📧 [email protected]/ 📧 [email protected] or Call us at the USA: ☎+1404-232-9879 or India: ☎ +918179191999 -------------------------- 💡 Check The Below Links ► For Course Reg: https://goo.gl/r6kJbB ► Subscribe to Our Channel: https://goo.gl/q9ozyG ► Circle us on G+: https://plus.google.com/+NareshIT ► Like us on Facebook: https://www.facebook.com/NareshIT ► Follow us on Twitter: https://twitter.com/nareshitek ► Follow us on Linkedin: https://goo.gl/CRBZ5F ► Follow us on Instagram: https://goo.gl/3UXYK3 Category Education Category Education
Views: 16205 Naresh i Technologies
Oracle Interview questions, How to calculate sum of salary without using sum function.
 
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Oracle Interview questions, How to calculate sum of salary without using sum function...!!!!!
Views: 61 ORA CLE
Over clause in SQL Server
 
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over partition by in sql server 2008 sql server over clause partition partition by clause in sql server 2008 over partition by clause in sql In this video we will discuss the power and use of Over clause in SQL Server. The OVER clause combined with PARTITION BY is used to break up data into partitions. Syntax : function (...) OVER (PARTITION BY col1, Col2, ...) The specified function operates for each partition. For example : COUNT(Gender) OVER (PARTITION BY Gender) will partition the data by GENDER i.e there will 2 partitions (Male and Female) and then the COUNT() function is applied over each partition. Any of the following functions can be used. Please note this is not the complete list. COUNT(), AVG(), SUM(), MIN(), MAX(), ROW_NUMBER(), RANK(), DENSE_RANK() etc. Example : SQl Script to create Employees table Create Table Employees ( Id int primary key, Name nvarchar(50), Gender nvarchar(10), Salary int ) Go Insert Into Employees Values (1, 'Mark', 'Male', 5000) Insert Into Employees Values (2, 'John', 'Male', 4500) Insert Into Employees Values (3, 'Pam', 'Female', 5500) Insert Into Employees Values (4, 'Sara', 'Female', 4000) Insert Into Employees Values (5, 'Todd', 'Male', 3500) Insert Into Employees Values (6, 'Mary', 'Female', 5000) Insert Into Employees Values (7, 'Ben', 'Male', 6500) Insert Into Employees Values (8, 'Jodi', 'Female', 7000) Insert Into Employees Values (9, 'Tom', 'Male', 5500) Insert Into Employees Values (10, 'Ron', 'Male', 5000) Go Write a query to retrieve total count of employees by Gender. Also in the result we want Average, Minimum and Maximum salary by Gender. This can be very easily achieved using a simple GROUP BY query as show below. SELECT Gender, COUNT(*) AS GenderTotal, AVG(Salary) AS AvgSal, MIN(Salary) AS MinSal, MAX(Salary) AS MaxSal FROM Employees GROUP BY Gender What if we want non-aggregated values (like employee Name and Salary) in result set along with aggregated values You cannot include non-aggregated columns in the GROUP BY query. SELECT Name, Salary, Gender, COUNT(*) AS GenderTotal, AVG(Salary) AS AvgSal, MIN(Salary) AS MinSal, MAX(Salary) AS MaxSal FROM Employees GROUP BY Gender The above query will result in the following error : Column 'Employees.Name' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause One way to achieve this is by including the aggregations in a subquery and then JOINING it with the main query as shown in the example below. Look at the amount of T-SQL code we have to write. SELECT Name, Salary, Employees.Gender, Genders.GenderTotals, Genders.AvgSal, Genders.MinSal, Genders.MaxSal FROM Employees INNER JOIN (SELECT Gender, COUNT(*) AS GenderTotals, AVG(Salary) AS AvgSal, MIN(Salary) AS MinSal, MAX(Salary) AS MaxSal FROM Employees GROUP BY Gender) AS Genders ON Genders.Gender = Employees.Gender Better way of doing this is by using the OVER clause combined with PARTITION BY SELECT Name, Salary, Gender, COUNT(Gender) OVER(PARTITION BY Gender) AS GenderTotals, AVG(Salary) OVER(PARTITION BY Gender) AS AvgSal, MIN(Salary) OVER(PARTITION BY Gender) AS MinSal, MAX(Salary) OVER(PARTITION BY Gender) AS MaxSal FROM Employees Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/over-clause-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/over-clause-in-sql-server_29.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 92758 kudvenkat
SelectTec | Aula Nº 23 | SUM - Oracle SQL Developer
 
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SUM Syntax: select sum(coluna) from tabela;
Views: 1588 SelectTec
Using the AVG function (Introduction to Oracle SQL)
 
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Find the average of values using the AVG function. The full Introduction to Oracle SQL course is available here: https://www.databasestar.com/introduction-to-oracle-sql-course/
Views: 240 Database Star
Grouping Sets in SQL Server
 
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grouping sets examples in sql server sql server grouping sets order by grouping sql server 2008 grouping sets example sql server group by union all Grouping sets is a new feature introduced in SQL Server 2008. Let us understand Grouping sets with an example. We want to calculate Sum of Salary by Country and Gender. We can very easily achieve this using a Group By query as shown below Select Country, Gender, Sum(Salary) as TotalSalary From Employees Group By Country, Gender Within the same result set we also want Sum of Salary just by Country. To achieve the above result we could combine 2 Group By queries using UNION ALL as shown below. Select Country, Gender, Sum(Salary) as TotalSalary From Employees Group By Country, Gender UNION ALL Select Country, NULL, Sum(Salary) as TotalSalary From Employees Group By Country Within the same result set we also want Sum of Salary just by Gender. We can achieve this by combining 3 Group By queries using UNION ALL as shown below Select Country, Gender, Sum(Salary) as TotalSalary From Employees Group By Country, Gender UNION ALL Select Country, NULL, Sum(Salary) as TotalSalary From Employees Group By Country UNION ALL Select NULL, Gender, Sum(Salary) as TotalSalary From Employees Group By Gender Finally we also want the grand total of Salary. In this case we are not grouping on any particular column. So both Country and Gender columns will be NULL in the resultset. To achieve this we will have to combine the fourth query using UNION ALL as shown below. Select Country, Gender, Sum(Salary) as TotalSalary From Employees Group By Country, Gender UNION ALL Select Country, NULL, Sum(Salary) as TotalSalary From Employees Group By Country UNION ALL Select NULL, Gender, Sum(Salary) as TotalSalary From Employees Group By Gender UNION ALL Select NULL, NULL, Sum(Salary) as TotalSalary From Employees There are 2 problems with the above approach. The query is huge as we have combined different Group By queries using UNION ALL operator. This can grow even more if we start to add more groups The Employees table has to be accessed 4 times, once for every query. If we use Grouping Sets feature introduced in SQL Server 2008, the amount of T-SQL code that you have to write will be greatly reduced. The following Grouping Sets query produce the same result as the above UNION ALL query. Select Country, Gender, Sum(Salary) TotalSalary From Employees Group BY GROUPING SETS ( (Country, Gender), -- Sum of Salary by Country and Gender (Country), -- Sum of Salary by Country (Gender) , -- Sum of Salary by Gender () -- Grand Total ) The order of the rows in the result set is not the same as in the case of UNION ALL query. To control the order use order by as shown below. Select Country, Gender, Sum(Salary) TotalSalary From Employees Group BY GROUPING SETS ( (Country, Gender), -- Sum of Salary by Country and Gender (Country), -- Sum of Salary by Country (Gender) , -- Sum of Salary by Gender () -- Grand Total ) Order By Grouping(Country), Grouping(Gender), Gender Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/grouping-sets-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/grouping-sets-in-sql-server_19.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 51214 kudvenkat
SQL Inner Join Multiple Tables with SUM Tutorial - SQL 2008/2012/2016/2017
 
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Use inner joins with multiple tables to create reports. Uses aliases, and the SUM aggregate function to demonstrate the flexibility of the join statement. Get the SQL script to create the database and run the exercies in the video here: https://www.qewbi.com/sql/scripts/qewbijoins.zip
Views: 145518 Edward Kench
SQL Server 2017 Tutorial 5 - GROUP BY Function COUNT MIN MAX SUM AVG
 
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Aggregate functions in SQL Server 2017 using GROUP BY, COUNT, SUM, AVG, MIN, MAX and HAVING. Microsoft aggregates article: https://docs.microsoft.com/en-us/sql/t-sql/functions/aggregate-functions-transact-sql?view=sql-server-2017 Support YPN on Patreon! http://www.patreon.com/YPN Website and Forum: http://yourprogrammingnetwork.co.uk Join us on Facebook! https://www.facebook.com/pages/Your-Programming-Network/280950122022281 Chat on Discord https://discord.gg/br3ZB3f
ORACLE SQL 16: AVG, SUM, MIN, MAX
 
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Views: 670 studyandsharevn
Oracel SQL -  Running Sum or Running Total and Percent of Total
 
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Running Sum or Running Total : syntax sum([measure_column]) over (order by [dimension_column] now running sum is displayed for each employee if we need restart the running sum by Gender here running sum is calculated separately for M and F Total salary to F = 250000 Total salary to M = 130000 What happens if we don't add order by? total 250000 for each gender is displayed at all rows if we want to display the total sum of salary at each row total sum(salary) is displayed at each row ----- Using this value we can calculate % of total select emp_name,gender,salary, sum(salary) over (order by emp_id)as Running_sum, round((salary/sum(salary) over())*100,2) as Perc_of_Total from employee
Views: 169 Data Disc
usando INNER JOIN, WHERE, GROUP BY, COUNT Y SUM
 
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ejemplos de como combinar 2 o mas tablas con INNER JOIN, filtrando con WHERE, usando tambien SUM, COUNT, GROUP BY, etc
Views: 5731 Manuel Valenzuela
Part 5   SQL query to find employees hired in last n months
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/05/part-5-sql-query-to-find-employees.html This question is asked is many sql server interviews. If you have used DATEDIFF() sql server function then you already know the answer. -- Replace N with number of months Select * FROM Employees Where DATEDIFF(MONTH, HireDate, GETDATE()) Between 1 and N
Views: 182658 kudvenkat

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