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GROUP BY with Multiple Columns (Introduction to Oracle SQL)
 
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Learn how to group with multiple columns using GROUP BY in SQL. The full Introduction to Oracle SQL course is available here: https://www.databasestar.com/introduction-to-oracle-sql-course/
Views: 511 Database Star
Oracle Sql :  Lecture 40: GROUP BY with multiple columns
 
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Oracle Sql: GROUP BY with multiple columns https://www.youtube.com/channel/UCnBpiBIOtRgMsk4G7Ri1jbQ
Views: 1998 Oracle SQL
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: 162521 Joes2Pros SQL Trainings
Group by in sql server - Part 11
 
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In this video we will learn 1. Grouping rows using GROUP BY 2. Filtering Groups 3. Difference between WHERE and HAVING clause in sql server Text version of the video http://csharp-video-tutorials.blogspot.com/2012/08/group-by-part-11.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-11-group-by.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: 409498 kudvenkat
Part 6   Transform rows into columns in sql server
 
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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/2014/06/part-6-transform-rows-into-columns-in.html This is another common sql server interview question. We will be using Countries table in this example. SQL to create the table Create Table Countries ( Country nvarchar(50), City nvarchar(50) ) GO Insert into Countries values ('USA','New York') Insert into Countries values ('USA','Houston') Insert into Countries values ('USA','Dallas') Insert into Countries values ('India','Hyderabad') Insert into Countries values ('India','Bangalore') Insert into Countries values ('India','New Delhi') Insert into Countries values ('UK','London') Insert into Countries values ('UK','Birmingham') Insert into Countries values ('UK','Manchester') Here is the interview question. Write a sql query to transpose rows to columns. Using PIVOT operator we can very easily transform rows to columns. Select Country, City1, City2, City3 From ( Select Country, City, 'City'+ cast(row_number() over(partition by Country order by Country) as varchar(10)) ColumnSequence from Countries ) Temp pivot ( max(City) for ColumnSequence in (City1, City2, City3) ) Piv
Views: 179694 kudvenkat
SQL Tutorial 12 Advanced Subqueries returning multiple columns
 
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SQL Tutorial on Advanced Subqueries returning multiple columns Check out our website: http://www.telusko.com Follow Telusko on Twitter: https://twitter.com/navinreddy20 Follow on Facebook: Telusko : https://www.facebook.com/teluskolearnings Navin Reddy : https://www.facebook.com/navintelusko Follow Navin Reddy on Instagram: https://www.instagram.com/navinreddy20 Subscribe to our other channel: Navin Reddy : https://www.youtube.com/channel/UCxmkk8bMSOF-UBF43z-pdGQ?sub_confirmation=1 Telusko Hindi : https://www.youtube.com/channel/UCitzw4ROeTVGRRLnCPws-cw?sub_confirmation=1
Views: 50051 Telusko
PIVOT Tutorial - generating dynamic column with PIVOT Interview Question SQL
 
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In this lecture you will learn about PIVOT operator and using it to generate dynamic columns.PIVOT is very use full operator to convert values into columns. PIVOT: •Convert your output from (values)vertical order to horizontal(making columns) one Topic to cover: •PIVOT example •PIVOT syntax •Interview Question •PIVOT on northwind •Dynamic PIVOT query http://www.techsapphire.in/index/pivot_sql_lesson_with_generating_dynamic_columns_with_pivot/0-158
Views: 27242 techsapphire
Oracle Partition By clause, Oracle Analytic Functions tutorial
 
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More about analytic functions, visit http://www.learn-with-video-tutorials.com Oracle Analytic Functions and Over By Partition clause enable calculating cumulative and moving aggregates returning multiple rows for each group.
Oracle Part 9 Group By and Having
 
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Group by, Having, Delete, Truncate, Rowid
Views: 969 Free OpenMentor
Oracle Sql Step by Step Approach (051 group by with multiple columns)
 
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Oracle Sql Step by Step Approach (051 group by with multiple columns) Discover essential SQL skills necessary to transform you into SQL developer which can earn you $70k+ in the IT Industry Learn to become a fee-earning SQL developer in just seven weeks. This fast, easy and effective course will take you from zero sql writing skills to being able to make money as a SQL developer. This one-stop-shot-style SQL course will teach you everything you need to know about SQL, from learning various database concepts to writing SQL to interact with the database. Throughout this SQL course I will be using the below methodology to make you think and help in forming the SQL statement. Like,Comment,Share
Oracle Sql Group By Clause
 
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This is video for oracle sql group by clause, you can learn easily with this video.. You can get knowledge about group by, having clause with real time examples.
Views: 4291 manmeet singh
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: 130136 Edward Kench
Lecture 39: Oracle Sql: GROUP BY clause
 
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Oracle Sql: GROUP BY clause https://www.youtube.com/channel/UCnBpiBIOtRgMsk4G7Ri1jbQ
Views: 1234 Oracle SQL
SQL with Oracle 10g XE - Using GROUP BY to Group Results of a Query
 
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In this video I use the GROUP BY clause to organize the results of a function by groups or categories. If you are looking to run a function on a column and have those results grouped together then you will need to use the GROUP BY clause to run the query. 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: 5571 Lecture Snippets
The GROUP BY clause of the SQL SELECT statement (for ORACLE, MySQL, SQL Server, etc.)
 
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The Structured Query Language (SQL) is the most powerful database language in use today. SELECT is the most powerful statement within SQL, and the GROUP BY clause is part of the reason. Learn the inner workings of GROUP BY and make yourself a more powerful database professional! From Steve O'Hearn of databasetraining.com and Corbinian, author of Oracle Press books, including the first "expert" level certification exam guide from Oracle Corporation, the "OCA Oracle Database SQL Expert Exam Guide: Exam 1Z0-047". (http://www.amazon.com/Oracle-Database-Expert-Exam-Guide/dp/0071614214/ref=sr_1_1?ie=UTF8&qid=1371769056&sr=8-1&keywords=oracle+sql+expert) This information is good for use with Oracle, MySQL, Microsoft SQL Server, and any ANSI-standard SQL database. Full transcript available here: http://databasetraining.com/node/3
Views: 15722 DatabaseTraining
GROUP BY, ROLLUP and CUBE in Oracle
 
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Here's a quick run through of GROUP BY, ROLLUP and CUBE, along with an example of using the GROUPING function. For more information see: https://oracle-base.com/articles/misc/rollup-cube-grouping-functions-and-grouping-sets Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Kerry Osborne Blog: http://kerryosborne.oracle-guy.com/ Twitter: https://twitter.com/KerryOracleGuy Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 15948 ORACLE-BASE.com
Oracle GROUP BY Clause
 
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group by in oracle oracle group by having oracle not a group by expression oracle group by count oracle group by multiple columns oracle group by order by
Views: 12 Adam Tech
Select statement in sql server - Part 10
 
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In this video we will learn 1. Select specific or all columns 2. Distinct rows 3. Filtering with where clause. 4. Wild Cards in SQL Server 5. Joining multiple conditions using AND and OR operators 6. Sorting rows using order by 7. Selecting top n or top n percentage of rows Text version of the video http://csharp-video-tutorials.blogspot.com/2012/08/select-statement-part-10.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-10-all-about-select.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: 324479 kudvenkat
Counting Data Within Groups with GROUP BY (Introduction to Oracle SQL)
 
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How to use grouping and count to count occurrences of data
Views: 183 Database Star
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: 5434 Jennifer Kreie
13 of 15 SQL Basics with Oracle - GROUP BY and HAVING in SQL
 
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This video explains the HAVING clause that is used to filter data based on criteria for aggregate values. There is also an example of filtering data in the WHERE clause along with a filtering data in in the HAVING clause. (13 of 15) There is also an "Advanced SQL" series. (Search for "databasemec" for tutorials using SQL Server.)
Views: 3626 Jennifer Kreie
SQL query to find first record and last record in single query
 
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SQL query to find first record and last record in single query
Views: 7580 SQL Guru
48. Group By Clause in PL/SQL Oracle
 
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In this video you will learn about Group By Clause in PL/SQL Oracle. For Support =========== Email: [email protected] Contact Form: http://www.learninhindi.com/home/contact Our Social Media ================ Facebook: https://www.facebook.com/LearnInHindi Twitter: https://twitter.com/LearnInHindi For Training & Videos ===================== For more videos and articles visit: http://www.learninhindi.com Free Java Programming In Hindi Course ===================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAwwhMyoLISrxkXTADGp7PH Free Oracle PL/SQL Programming In Hindi Course ============================================== https://www.youtube.com/playlist?list=PLB5DA82419C2D99B6 Free C Programming In Hindi Course ================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAxKpBLMWogxSdy6BZcsAJq Trips & Tricks Channel ====================== https://www.youtube.com/channel/UCGmLfkuCo-3lHHJXRJ9HUMw Programming in Hindi Channel ============================ https://www.youtube.com/channel/UCudElIDgwNrybeAvXIy1HZQ
Views: 4200 ITORIAN
Oracle Reports | Different Style of Reports  (Tabular, Group Left and Group Above) R-05
 
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Oracle Reports | Different Style of Reports (Tabular, Group Left and Group Above) R-05 To See More Reports Tutorial Click here https://www.youtube.com/watch?v=y_0f_iILlmY&list=PLXXvCMuixAJUfU4ZISmPtHrmKe5qRvyVY To See More Forms Tutorial Click here https://www.youtube.com/watch?v=Zsu4CWo_vwk&list=PLXXvCMuixAJU3Ap_FE2zSEBicv8IC5kDU Dear viewer, In this tutorial you will know how to create tabular reports, group left reports and group above reports using wizard. Report Styles There are several report styles in Oracle Reports Builder. Tabular reports Group above reports Group left reports Matrix reports Tabular Reports: A tabular report is the most basic type of report. Each column corresponds to a column selected from the database. Group Left Reports: A group left report also contains multiple groups in its data model, dividing the rows of a table based on a common value in one of the columns. Use this type of report to restrict a column from repeating the same value several times while values of related columns change. The data model for group above and group left reports is the same, but the layouts differ; group above reports display the master information at the top while group left reports display break columns to the side. Group Above Reports: A group above report contains multiple groups in its data model. It is a "master/detail" report, where there may be a lot of information in the master group. For every master group, the related values of the detail group(s) are fetched from the database and are displayed below the master information. To Get more Tutorial Subscribe The Channel click here https://www.youtube.com/channel/UCQ3ea4zVCfnKBx1_7h8raGQ?sub_confirmation=1 To Get All Post Like The Facebook Page Click here https://www.facebook.com/oracledbsolutions Follow us: Facebook: https://www.facebook.com/oracledbsolutions Youtube link: https://www.youtube.com/channel/UCQ3ea4zVCfnKBx1_7h8raGQ?view_as=subscriber Facebook Group: https://www.facebook.com/groups/465557066961548 Contact us: email: [email protected] Skype: oracle26solutions Mob: 01734557080, 01627422780
Views: 93 OracleDB Solutions
SQL Tutorial 8: Using GROUP BY and aggregate functions
 
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On some situations, you don’t need to list all the details in your table to present the information inside your database. Some people with executive positions rely mostly in the summary that you present to them. This is where you use GROUP BY in your SELECT statement. GROUP BY works closely with aggregate functions. Use aggregate functions whenever you summarize the details inside your tables. Examples of aggregate functions are SUM (), AVG (), MAX (), MIN (), COUNT. Assign alias name to column on where you used aggregate function. Still, you can work with aggregate functions even without a GROUP BY indicated. This case is mostly applicable when you generate summary with one result. GROUP BY syntax (together with other SELECT statement clauses) is applicable to all database products such as Informix, MySQL, MS SQL Server, Oracle, with addition with DB2. Link for the ebook will be announced later.
Views: 1703 Jerry Esperanza
Find Duplicate Rows in SQL - Select Statement Tutorial
 
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Find duplicate row values in a field or multiple fields in SQL Server table with this tutorial. Do this for one column, or multiple columns. Uses SQL Server Management Studio for the demonstration.
Views: 40824 Edward Kench
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: 79970 kudvenkat
how to perform group function in  table(Oracle Apex 12c -Run SQL Commands)
 
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the group functions are sum,avg,max,min,count and distinct syntax sum: select sum(columnname) from tablename Avg : select avg(columnname) from tablename max :select max(columnname) from tablename min :select min(columnname) from tablename count:select count(columnname) from tablename distinct:select distinct(columnname) from tablename
Views: 46 SB TUTORIALS
HOW TO IDENTIFY AND DELETE DUPLICATE ROWS USING ROWID AND GROUPBY IN ORACLE SQL
 
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This video demonstrates examples on how to find and delete duplicate records from a table. The video gives simple and easy to understand examples on finding duplicate records from a table using group by and having clause and row_number function. It also shows the ways in which duplicates can be deleted very efficiently using the rowid of that record. You can get the code from our website http://oracleplsqlblog.com/FullBlog/FullBlog/21
Views: 8227 Kishan Mashru
Rollup in SQL Server
 
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sql server group by rollup sql server 2008 group by rollup group by with rollup example sql rollup example sql server rollup example sql server 2008 rollup examples rollup clause in sql server rollup function in sql server ROLLUP in SQL Server is used to do aggregate operation on multiple levels in hierarchy. Let us understand Rollup in SQL Server with examples. We will use the following Employees table for the examples in this video. Retrieve Salary by country along with grand total There are several ways to achieve this. The easiest way is by using Rollup with GroupBy. SELECT Country, SUM(Salary) AS TotalSalary FROM Employees GROUP BY ROLLUP(Country) The above query can also be rewritten as shown below SELECT Country, SUM(Salary) AS TotalSalary FROM Employees GROUP BY Country WITH ROLLUP We can also use UNION ALL operator along with GROUP BY SELECT Country, SUM(Salary) AS TotalSalary FROM Employees GROUP BY Country UNION ALL SELECT NULL, SUM(Salary) AS TotalSalary FROM Employees We can also use Grouping Sets to achieve the same result SELECT Country, SUM(Salary) AS TotalSalary FROM Employees GROUP BY GROUPING SETS ( (Country), () ) Let's look at another example. Group Salary by Country and Gender. Also compute the Subtotal for Country level and Grand Total as shown below. Using ROLLUP with GROUP BY SELECT Country, Gender, SUM(Salary) AS TotalSalary FROM Employees GROUP BY ROLLUP(Country, Gender) OR SELECT Country, Gender, SUM(Salary) AS TotalSalary FROM Employees GROUP BY Country, Gender WITH ROLLUP Using UNION ALL with GROUP BY 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, NULL, SUM(Salary) AS TotalSalary FROM Employees Using GROUPING SETS SELECT Country, Gender, SUM(Salary) AS TotalSalary FROM Employees GROUP BY GROUPING SETS ( (Country, Gender), (Country), () ) Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/rollup-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/rollup-in-sql-server_20.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: 51867 kudvenkat
Oracle Sql : Lecture 41:  GROUP BY with HAVING clause
 
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Oracle Sql: GROUP BY with HAVING clause https://www.youtube.com/channel/UCnBpiBIOtRgMsk4G7Ri1jbQ
Views: 798 Oracle SQL
SQL - GROUP BY
 
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SQL GROUP BY clause is used in conjunction with the aggregate functions. It groups the result set by one or more columns. This tutorial's text is available at http://www.itcuties.com/sql/sql-group-by-tutorial-video For more great tutorials visit us at http://www.itcuties.com
Views: 2353 ITCuties
Difference between cube and rollup in SQL Server
 
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difference between cube and rollup in sql server 2008 sql server rollup vs cube difference between cube and rollup in sql server 2005 rollup and cube in sql server 2005 In this video we will discuss the difference between cube and rollup in SQL Server. CUBE generates a result set that shows aggregates for all combinations of values in the selected columns, where as ROLLUP generates a result set that shows aggregates for a hierarchy of values in the selected columns. Let us understand this difference with an example. ROLLUP(Continent, Country, City) produces Sum of Salary for the following hierarchy Continent, Country, City Continent, Country, Continent () CUBE(Continent, Country, City) produces Sum of Salary for all the following column combinations Continent, Country, City Continent, Country, Continent, City Continent Country, City Country, City () SELECT Continent, Country, City, SUM(SaleAmount) AS TotalSales FROM Sales GROUP BY ROLLUP(Continent, Country, City) SELECT Continent, Country, City, SUM(SaleAmount) AS TotalSales FROM Sales GROUP BY CUBE(Continent, Country, City) You won't see any difference when you use ROLLUP and CUBE on a single column. Both the following queries produces the same output. SELECT Continent, Sum(SaleAmount) AS TotalSales FROM Sales GROUP BY ROLLUP(Continent) -- OR SELECT Continent, SUM(SaleAmount) AS TotalSales FROM Sales GROUP BY CUBE(Continent) Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/difference-between-cube-and-rollup-in.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/difference-between-cube-and-rollup-in_24.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: 41110 kudvenkat
Oracle SQL Developer Tutorial For Beginners  94   Alias for Columns
 
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Oracle SQL Developer Tutorial For Beginners Series. This course introduces Oracle SQL Development for its subscribers. Currently this is based on Oracle 12c. The test environment is in Windows 10.
Views: 546 Sam Dhanasekaran
Difference between rows and range
 
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range vs rows in sql server difference between rows clause and range clause in sql server range clause vs rows clause in sql server sql server running total query running total example in sql server In this video we will discuss the difference between rows and range in SQL Server. This is continuation to Part 116. Please watch Part 116 from SQL Server tutorial before proceeding. Let us understand the difference with an example. We will use the following Employees table in this demo. SQL Script to create the Employees table Create Table Employees ( Id int primary key, Name nvarchar(50), Salary int ) Go Insert Into Employees Values (1, 'Mark', 1000) Insert Into Employees Values (2, 'John', 2000) Insert Into Employees Values (3, 'Pam', 3000) Insert Into Employees Values (4, 'Sara', 4000) Insert Into Employees Values (5, 'Todd', 5000) Go Calculate the running total of Salary and display it against every employee row The following query calculates the running total. We have not specified an explicit value for ROWS or RANGE clause. SELECT Name, Salary, SUM(Salary) OVER(ORDER BY Salary) AS RunningTotal FROM Employees So the above query is using the default value which is RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW This means the above query can be re-written using an explicit value for ROWS or RANGE clause as shown below. SELECT Name, Salary, SUM(Salary) OVER(ORDER BY Salary RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS RunningTotal FROM Employees We can also achieve the same result, by replacing RANGE with ROWS SELECT Name, Salary, SUM(Salary) OVER(ORDER BY Salary ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS RunningTotal FROM Employees What is the difference between ROWS and RANGE To understand the difference we need some duplicate values for the Salary column in the Employees table. Execute the following UPDATE script to introduce duplicate values in the Salary column Update Employees set Salary = 1000 where Id = 2 Update Employees set Salary = 3000 where Id = 4 Go Now execute the following query. Notice that we get the running total as expected. SELECT Name, Salary, SUM(Salary) OVER(ORDER BY Salary ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS RunningTotal FROM Employees The following query uses RANGE instead of ROWS SELECT Name, Salary, SUM(Salary) OVER(ORDER BY Salary RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS RunningTotal FROM Employees Notice we don't get the running total as expected. So, the main difference between ROWS and RANGE is in the way duplicate rows are treated. ROWS treat duplicates as distinct values, where as RANGE treats them as a single entity. All together side by side. The following query shows how running total changes 1. When no value is specified for ROWS or RANGE clause 2. When RANGE clause is used explicitly with it's default value 3. When ROWS clause is used instead of RANGE clause SELECT Name, Salary, SUM(Salary) OVER(ORDER BY Salary) AS [Default], SUM(Salary) OVER(ORDER BY Salary RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS [Range], SUM(Salary) OVER(ORDER BY Salary ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS [Rows] FROM Employees Text version of the video http://csharp-video-tutorials.blogspot.com/2015/10/difference-between-rows-and-range.html Slides http://csharp-video-tutorials.blogspot.com/2015/10/difference-between-rows-and-range_8.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: 32144 kudvenkat
SQL VIDEO TUTORIAL GROUP  BY
 
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The GROUP BY statement is used in conjunction with the aggregate functions to group the result-set by one or more columns.
Views: 90 Mahamud Hasan
SQL Tutorial 9: HAVING and DISTINCT clause
 
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HAVING clause is used to filter rows generated with a GROUP BY statement. It is an equivalent of WHERE. WHERE filters each row of the result generated; HAVING filters each row of the generated result. HAVING clause may include compound filter conditions just like on WHERE clause. You may only use HAVING clause if you have a GROUP BY in your SELECT statement. The video shows the on how an aggregate function COUNT is used in the example. Function YEAR() is also used as part of the HAVING filter condition. Examples show on how to group columns using GROUP BY with an aggregate function to generate the desired result. DISTINCT eliminates occurrence of same set of rows. On some occasions, you may use DISTINCT as a replacement for the GROUP BY clause. One example shows on how to use SELECT statement with a WHERE, ORDER BY, GROUP BY, HAVING clauses. As you become familiar with the syntax, it may offer a time-saving approach to generate the result you need. HAVING, WHERE, DISTINCT, COUNT, MAX and other aggregate functions are standard in all SQL DBMS products. It has the same syntax as you work with Informix, Oracle, MS SQL Server, MySQL, in addition to DB2. Link for the ebook will be announced later.
Views: 1347 Jerry Esperanza
SQL Tutorial - 13: Inserting Data Into a Table From Another Table
 
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In this tutorial we'll learn to use the INSERT Query to copy data from one table into another.
Views: 235244 The Bad Tutorials
KISS series on Partitioning: 03 Multi column range partitioning
 
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Welcome to the KISS video series on Partitioning, where we take a more developer-centric look at how partitioning can make our applications more successful. In this session, we look at range partitioning on multiple columns Scripts: https://livesql.oracle.com/apex/livesql/file/content_ERYV6B909XK196IAKLBUQIJSN.html blog: https://connor-mcdonald.com ========================================­­============== Copyright © 2017 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 812 Connor McDonald
SQL Server Queries Part 10 - GROUP BY and HAVING
 
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If you'd like to help fund Wise Owl's conversion of tea and biscuits into quality training videos you can click this link https://www.wiseowl.co.uk/donate?t=1 to make a donation. Thanks for watching! By Andrew Gould https://www.wiseowl.co.uk - Learn how to group data and calculate aggregate statistics in Microsoft SQL Server queries. This video teaches you how to use the GROUP BY clause in a query to organise your data into groups, including how to group by multiple columns in the same query. We'll also show you how to make use of the aggregate functions to calculate values such as the total and average of a range of numbers, including how to apply totals and subtotals using the ROLLUP keyword. You can download the script to create the Movies database used in this video at the following link: https://www.wiseowl.co.uk/files/execise-question-files/qf-898.zip You can see a written version of this tutorial at: https://www.wiseowl.co.uk/blog/s331/group-by.htm You can see the range of resources and courses we offer in SQL Server here: https://www.wiseowl.co.uk/sql/ Visit www.wiseowl.co.uk for more online training resources in Microsoft Excel, Microsoft Access, Microsoft PowerPoint, Microsoft Word, Microsoft Project, Microsoft Publisher, Microsoft Visio, SQL Server, Reporting Services, Analysis Services, Visual Studio, ASP.NET, VB.NET, C# and more!
Views: 78901 WiseOwlTutorials
SelectTec | Aula Nº 29 | Group by - Oracle SQL Developer
 
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Syntax: select coluna from tabela group by coluna; select count(*),coluna from tabela group by coluna;
Views: 1532 SelectTec
SQL Total Column Count in One Shot
 
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SQL Tut, Column Count in One Shot, Count Column without Order by & group by Thanks and Regards, Kashmiri Cheetah
Views: 793 Amir Muzaffar
Changing calculation logic based on a column
 
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This video demonstrated how to change the logic of a given row calculation based on the value in another column. You may run in to a scenerion where you need to implement this when you have a requirement that the rows with one dimension value have logic "X" (for instance Mean) and the the rows with a different dimension value have logic "Y" (for instance a Median) assigned. This is accomplished with the Switch (Case) expression in the OBIEE formula builder.
Views: 7559 Justin W. Steigerwalt
OracleSQL#8 How to Rename/Modify/Add/Remove column of a table|Alter SQL Statement in oracle database
 
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explaining How to add a column of a table, Modify Data type of a table, Rename column and remove the column of a table using Alter table In this series we cover the following topics: 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/lrnwthr/ Twitter: https://twitter.com/LrnWthR
Views: 146 EqualConnect Coach
SQL DISTINCT Within a SELECT - Retrieving Unique Values
 
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Jamie King of Neumont University demonstrating use of DISTINCT within a SQL SELECT command.
Views: 21097 Jamie King
Write SQL Query with Column Aliasing and Order by multiple Columns
 
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Tutorial how to write a SQL Query with Column Aliasing and Order by multiple Columns
Oracle Setups - cost Allocation, Position,People Group and competence key flex field
 
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Oracle Setups - cost Allocation, Position,People Group and competence key flex field
Views: 1716 Neemo Tommy
ORACLE SQL 19: Group multiple functions
 
05:45
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Views: 559 studyandsharevn

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