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Oracle Rowid, RowNum and row_number
 
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Oracle Rowid, RowNum and row_number... Explained in detailed...
Views: 4596 CONNECT TO LEARN
SQL: pseudo columns (Rowid/Rownum)
 
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In this tutorial, u'll learn the difference between rowid & rownum..
Views: 28313 radhikaravikumar
Difference between Row Number, Rank and Dense Rank | Oracle SQL Tutorial | Mr.Murali
 
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Views: 6156 Naresh i Technologies
ROWID VS ROWNUM IN ORACLE
 
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This Video explains the difference between ROWID and ROWNUM using real project examples. ROWID provides the unique physical address where the row is being stored. ROWNUM indicates the order in which the data was returned from the select query.
Views: 1461 Tech Coach
Using Rownum to find out Nth record from First, Last and within a range in a table.
 
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Using Rownum to find the first nth record and last nth record and in between record in emp table. This is the most frequesntly questions ever asked in interviews.
Views: 2668 Kiranjit Parida
how to use "ROWNUM" in oracle
 
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this video shows how we can display a range of records in ORACLE DATABASE using SQL
Views: 1700 P-Square Technologies
Difference between Rowid and Rownum
 
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Difference between Rowid and Rownum If you like this video please share and subscribe channel on youtube for more videos Useful Pl/sql Books http://goo.gl/XMy0tt Watch More... What is Parameterized Cursor in Oracle https://www.youtube.com/watch?v=JMKwHlVi6-A What is autonomous transaction in Oracle. https://www.youtube.com/watch?v=gyvFajpfoWE What are Constraints available in Oracle. https://www.youtube.com/watch?v=WivhdLXQklQ What is Mutation Error and How to avoid mutation. https://www.youtube.com/watch?v=CbWNCyW18Bs 5 Effective way to delete Duplicate rows https://www.youtube.com/watch?v=1wtTtnc87Oc What is Difference between Delete and Truncate https://www.youtube.com/watch?v=7b6wQ3Qumgg
Views: 9932 Ram Gupta
Row Number function in SQL Server
 
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sql server row_number example sql server row number by partition sql server row_number over partition by order by In this video we will discuss Row_Number function in SQL Server. This is continuation to Part 108. Please watch Part 108 from SQL Server tutorial before proceeding. Row_Number function Introduced in SQL Server 2005 Returns the sequential number of a row starting at 1 ORDER BY clause is required PARTITION BY clause is optional When the data is partitioned, row number is reset to 1 when the partition changes Syntax : ROW_NUMBER() OVER (ORDER BY Col1, Col2) Row_Number function without PARTITION BY : In this example, data is not partitioned, so ROW_NUMBER will provide a consecutive numbering for all the rows in the table based on the order of rows imposed by the ORDER BY clause. SELECT Name, Gender, Salary, ROW_NUMBER() OVER (ORDER BY Gender) AS RowNumber FROM Employees Please note : If ORDER BY clause is not specified you will get the following error The function 'ROW_NUMBER' must have an OVER clause with ORDER BY Row_Number function with PARTITION BY : In this example, data is partitioned by Gender, so ROW_NUMBER will provide a consecutive numbering only for the rows with in a parttion. When the partition changes the row number is reset to 1. SELECT Name, Gender, Salary, ROW_NUMBER() OVER (PARTITION BY Gender ORDER BY Gender) AS RowNumber FROM Employees Use case for Row_Number function : Deleting all duplicate rows except one from a sql server table. Discussed in detail in Part 4 of SQL Server Interview Questions and Answers video series. Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/rownumber-function-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/rownumber-function-in-sql-server_30.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: 68427 kudvenkat
Oracle SQL Developer Tutorial For Beginners   85   Find the Total Number of Rows
 
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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: 500 Sam Dhanasekaran
oracle date and time functions
 
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Video from our Oracle SQL course. Check out the full course at.. http://learn.hackpress.co/courses/oracle-sql-learning-by-example
Views: 39271 etldeveloper
Oracle ROUND: Number function
 
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Oracle TRUNC: Number function https://www.youtube.com/watch?time_continue=3&v=4lchx4sseEM Oracle MOD: Number function https://www.youtube.com/watch?v=eMGgo_1y6b4&feature=youtu.be The usage of SELECT Playlist: https://www.youtube.com/watch?v=ZwgiIiD1dWE&list=PLjBraywgeSpEW2f7AK4Ddt6BRxW0HWN74
What is Row_number in Oracle
 
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What is Row_number in Oracle - Find out more explanation for : 'What is Row_number in Oracle' only from this channel. Information Source: google
Views: 0 datunakai1c
ROWID & ROWNUM in Oracle/ عربي
 
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ROWID & ROWNUM in Oracle
Views: 846 khaled alkhudari
ORACLE SQL AND PL/SQL INTERVIEW QUESTION : DIFFERENCE BETWEEN ROWID AND ROWNUM WITH EXAMPLE
 
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In this video tutorial, we discuss the pseudo column rowid and rownum in oracle sql. After watching this video you would be able to understand the basic difference between rowid and a rownum pseudo columns of oracle database. Rowid returns the exact location of the row in the database, hence whenever you retrive a record based on rowid, it is the fastest retrival possible. Whereas for each row returned by a query, the ROWNUM pseudocolumn returns a number indicating the order in which Oracle selects the row from a table or set of joined rows. For more such videos visit out complete list of videos on www.youtube.com/c/kishanmashru Visit or blog www.oracleplsqlblog.com
Views: 1417 Kishan Mashru
Oracle rownum vs row number
 
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oracle rownum vs ROW_NUMBER
Views: 21 Siva Academy
What is Rowid and Rownum in Oracle
 
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What is Rowid and Rownum in Oracle - Find out more explanation for : 'What is Rowid and Rownum in Oracle' only from this channel. Information Source: google
SQL Server - Row Number Function (tr)
 
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SQL Server - Row Number Function
Part 1 - Ranking Function - RowNumber
 
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Arabic Series for SQL Server Ranking Functions
Views: 1204 amosaEgy
Row Number Function in SQL SERVER 2008
 
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I have Explained in this video that,How to use the ROW_FUNCTION in SQL SERVER 2008
Views: 329 Rajesh kanna
Highlights of Oracle Autonomous Transaction Processing Launch
 
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CTO and Executive Chairman Larry Ellison introduces Oracle Autonomous Transaction Processing, offering powerful new capabilities in the world's first autonomous database. Innovate more for less and ensure data safety in the Oracle Autonomous Cloud.
Views: 1842 Oracle
SQL Server interview question :- Explain RowNumber,Partition,Rank and DenseRank ?
 
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For more such videos visit http://www.questpond.com See our other Step by Step video series below :- Learn SQL Server Step by Step in 16 hours:- http://tinyurl.com/ja4zmwu Learn Angular tutorial for beginners https://tinyurl.com/ycd9j895 Learn MVC Core step by step :- http://tinyurl.com/y9jt3wkv Learn MVC 5 Step by Step in 16 hours:- https://goo.gl/dmdakg Learn MSBI Step by Step in 32 hours:- https://goo.gl/TTpFZN Learn Xamarin Mobile Programming Step by Step :- https://goo.gl/WDVFuy Learn Design Pattern Step by Step in 8 hours:- https://goo.gl/eJdn0m Learn C# Step by Step in 100 hours :- https://goo.gl/FNlqn3 Learn Data structures & algorithm in 8 hours :-https://tinyurl.com/ybx29c5s Learn Javascript in 2 hours :- http://tinyurl.com/zkljbdl Learn SharePoint Step by Step in 8 hours:- https://goo.gl/XQKHeP Learn TypeScript in 45 Minutes :- https://goo.gl/oRkawI Learn webpack in 50 minutes:- https://goo.gl/ab7VJi Learn Visual Studio code in 10 steps for beginners:- https://tinyurl.com/lwgv8r8 Learn Tableau step by step :- https://tinyurl.com/kh6ojyo SQL Server interview question :- Explain RowNumber,Partition,Rank and DenseRank ? We are also distributing a 100 page Ebook "Sql Server Interview Questions". 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.
4 of 6  SQL Advanced with Oracle  - Inline subquery and rownum
 
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This video gives an example of an inline subquery, a query in the FROM clause of another query. We also see how we might use the rownum option to limit how many rows of output we get. (4 of 6) There is also an "SQL Fundamentals" series. (Search for "databasemec" for tutorials using SQL Server.)
Views: 10162 Jennifer Kreie
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: 7041 Kishan Mashru
ORACLE PL/SQL INTERVIEW : REVERSE NUMBER STRING PROGRAM
 
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This video tutorial demonstrates on the oracle pl/sql interview question of reversing a number string without using the reverse function, the video explains a very simple and generic approach that can be used to solve this question.
Views: 2649 Kishan Mashru
Oracle Rownum vs Rowcount
 
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Oracle Rownum Vs Rowcount
Views: 10 Siva Academy
Oracle - SQL - Number Functions
 
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Oracle - SQL - Number Functions Watch more Videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Anadi Sharma, Tutorials Point India Private Limited.
ROWNUM vs ROWID in Oracle Explain with Examples
 
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Oracle ROWNUM and ROWID
Views: 7 Adam Tech
Which row in which datafile?
 
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Oracle Database 11g, Rowid, datafile
Views: 578 Mahir M. Quluzade
Oracle ROWNUM and ROWID difference
 
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What is ROWID and ROWNUM in SQL
Views: 0 Hindi Life
Rownum Manipulation in MySQL
 
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Using variable manipulation in resultset, we create two subqueries having rownum in each set. Having them join each other produce an intended final result.
Views: 4522 PHI-Integration
Oracle MOD: Number function
 
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Oracle ROUND: Number Function https://www.youtube.com/watch?v=eWm_jON6NUI Oracle TRUNC: Number function https://www.youtube.com/watch?time_continue=3&v=4lchx4sseEM The usage of SELECT Playlist: https://www.youtube.com/watch?v=ZwgiIiD1dWE&list=PLjBraywgeSpEW2f7AK4Ddt6BRxW0HWN74
Oracle Database 12c: Easy Top N and Pagination Queries
 
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Pagination queries using the row limiting clause to fetch N rows or a percentage of rows in a table. For more information, see [Limiting SQL Rows](http://www.oracle.com/pls/topic/lookup?ctx=db121&id=DWHSG9188), [row_limiting_clause](http://www.oracle.com/pls/topic/lookup?ctx=db121&id=SQLRF55636).
Views: 3142 OracleDBVision
Explain ROWNUM in Oracle.
| javapedia.net
 
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Follow the link for discussions and other questions and answers at: https://www.javapedia.net/module/Spring/SQL/1584. Visit the playlist to watch other videos at the same category: https://www.youtube.com/playlist?list=PLYxPfcj1dUYsyuNKP9WtADxGjo6oru4Si Subscribe to the youtube channel to receive the updates. Thank you for visiting javapedia.net!
Views: 22 javapedia.net
Rank and Dense Rank in SQL Server
 
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rank and dense_rank example difference between rank and dense_rank with example rank vs dense_rank in sql server 2008 sql server difference between rank and dense_rank In this video we will discuss Rank and Dense_Rank functions in SQL Server Rank and Dense_Rank functions Introduced in SQL Server 2005 Returns a rank starting at 1 based on the ordering of rows imposed by the ORDER BY clause ORDER BY clause is required PARTITION BY clause is optional When the data is partitioned, rank is reset to 1 when the partition changes Difference between Rank and Dense_Rank functions Rank function skips ranking(s) if there is a tie where as Dense_Rank will not. For example : If you have 2 rows at rank 1 and you have 5 rows in total. RANK() returns - 1, 1, 3, 4, 5 DENSE_RANK returns - 1, 1, 2, 3, 4 Syntax : RANK() OVER (ORDER BY Col1, Col2, ...) DENSE_RANK() OVER (ORDER BY Col1, Col2, ...) RANK() and DENSE_RANK() functions without PARTITION BY clause : In this example, data is not partitioned, so RANK() function provides a consecutive numbering except when there is a tie. Rank 2 is skipped as there are 2 rows at rank 1. The third row gets rank 3. DENSE_RANK() on the other hand will not skip ranks if there is a tie. The first 2 rows get rank 1. Third row gets rank 2. SELECT Name, Salary, Gender, RANK() OVER (ORDER BY Salary DESC) AS [Rank], DENSE_RANK() OVER (ORDER BY Salary DESC) AS DenseRank FROM Employees RANK() and DENSE_RANK() functions with PARTITION BY clause : Notice when the partition changes from Female to Male Rank is reset to 1 SELECT Name, Salary, Gender, RANK() OVER (PARTITION BY Gender ORDER BY Salary DESC) AS [Rank], DENSE_RANK() OVER (PARTITION BY Gender ORDER BY Salary DESC) AS DenseRank FROM Employees Use case for RANK and DENSE_RANK functions : Both these functions can be used to find Nth highest salary. However, which function to use depends on what you want to do when there is a tie. Let me explain with an example. If there are 2 employees with the FIRST highest salary, there are 2 different business cases 1. If your business case is, not to produce any result for the SECOND highest salary, then use RANK function 2. If your business case is to return the next Salary after the tied rows as the SECOND highest Salary, then use DENSE_RANK function Since we have 2 Employees with the FIRST highest salary. Rank() function will not return any rows for the SECOND highest Salary. WITH Result AS ( SELECT Salary, RANK() OVER (ORDER BY Salary DESC) AS Salary_Rank FROM Employees ) SELECT TOP 1 Salary FROM Result WHERE Salary_Rank = 2 Though we have 2 Employees with the FIRST highest salary. Dense_Rank() function returns, the next Salary after the tied rows as the SECOND highest Salary WITH Result AS ( SELECT Salary, DENSE_RANK() OVER (ORDER BY Salary DESC) AS Salary_Rank FROM Employees ) SELECT TOP 1 Salary FROM Result WHERE Salary_Rank = 2 You can also use RANK and DENSE_RANK functions to find the Nth highest Salary among Male or Female employee groups. The following query finds the 3rd highest salary amount paid among the Female employees group WITH Result AS ( SELECT Salary, Gender, DENSE_RANK() OVER (PARTITION BY Gender ORDER BY Salary DESC) AS Salary_Rank FROM Employees ) SELECT TOP 1 Salary FROM Result WHERE Salary_Rank = 3 AND Gender = 'Female' Text version of the video http://csharp-video-tutorials.blogspot.com/2015/10/rank-and-denserank-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/10/rank-and-denserank-in-sql-server_1.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: 63445 kudvenkat
System Change Number in Oracle Database - SCN - DBArch Video 26
 
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In this video you will understand what is System Change Number in an Oracle Database, and get to know about some of the uses of it.
Views: 2496 Ramkumar Swaminathan
Row_Number() function in Microsoft SQL server | How to use Row_Number in SQL server
 
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Hello everyone, today I am going to discuss the Row_number feature in SQL server. what is Row_Number()? Row_Number is used to generate the number of each row dynamically in a sequential order based on some column orders. Row_Number() must be used with order by clause, without order by we can not use the Row_Nuber function. Row_Number() over(order by EmpName) as RowNumber Generate unique Id for each row dynamically: – In case if the table does not have a primary key or any unique identification number. you can use Row_Number to provide the unique ID for a table. select Row_Number() over(Order by EmailId) as Id, EmailId,FirstName,LastName from Employee
Views: 481 betechnical
Microsoft SQL Server - Ranking Functions - Row_Number()
 
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Microsoft SQL Server - Ranking Functions - Row_Number()
Views: 82 Hima Bindu
103 Oracle 11g Tutorials    Using Number Functions
 
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Introduction to Oracle 11g Tuts
Views: 97 saratutus
Simulate ROW_NUMBER() Without Window Functions
 
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Using a correlated subquery, we can create our own ROW_NUMBER function, similar to what you'd find in PG or MSSQL Server or Oracle.
Views: 107 Jeffrey James
How to delete duplicate records from a table in oracle
 
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Let c how to remove duplicates from a table..I have one table here 'student' It has two duplicate records. 3 joe 4 robert These two records has duplicates. So I have to remove them. I can remove them using rowid functionality using one subquery. You can give different column names in GROUP BY clause. to identify the duplicate record. You can give just primary key values also. Duplicate rows are deleted now... Query used in video: delete from student where rowid not in (select min(rowid) from student group by sno,sname); Thanks for watching...:)
Views: 13678 WingsOfTechnology
Oracle release number understand DBA interview question
 
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DBA interview, learn oracle,crack interview, Oracle DBA, issues on job,become expert DBA, online DBA training
Views: 411 Varun Pandey
SQL FIRST or top or limit or rownum In ENglish-vlr training
 
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In Telugu: In English: download sql study material Website: http://www.vlrtrain.in/2016/09/download-sql-files.html Learn SQL sql tutorial for beginners sql commands oracle sql tutorial sql tutorial advanced mysql tutorial sql tutorial video SQL Tutorial, Tutorials SQL
Views: 21 VLR Training
017-Oracle SQL 12c: Number functions
 
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تعلم اوراكل حتى الاحتراف تعلم اوراكل من الصفر
Views: 2595 khaled alkhudari
Oracle Database11g tutorials 10 ||  SQL Single Row Function (SQL Functions )
 
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Single row functions Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts Email [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from The Code makers ============================================ in this oracle database tutorial we will see what are SQL FUNCTIONS. SQL functions are divided into two categories 1st is Single Row Functions And another one is Multiple row function which is also known as aggregate functions. But in today's SQL tutorial we will concentrate on Single Row Functions. Single-row functions operate on one row at a time and return one row of output for each input row. Single row functions are capable of manipulating data items and modifying the data types. Single row functions return one result per row and act on each row that is returned. Single row functions can accept one or more arguments and return one value. These arguments can be a column or an expression. With oracle we have 5 types of Single Row Functions 1. Character Functions 2. Number Functions 3. General Functions 4. Conversion Functions and 5. Date Functions. Character Functions are further divided into two categories. 1st is Case- manipulation functions and 2nd is Character Manipulation functions. We have 3 case manipulation functions Lower, upper and initcap and 7 character manipulation functions Sql functions concat, substr, length, instr, lpad, rpad, trim and replace. In our future video we will see what these functions are and what they do along with other SQL function. That's it for today's sql tutorial. Hope you enjoyed watching. Please don't forget to subscribe and like. Have a good day. This is Manish.
Views: 87577 Manish Sharma
Oracle Analytic Function Rank & denseRank
 
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In this video, Rank and Dense_rank function usage is explained with proper example.
Views: 177 amit wadbude
Part 1   How to find nth highest salary in sql
 
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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-1-how-to-find-nth-highest-salary_17.html This is a very common SQL Server Interview Question. There are several ways of finding the nth highest salary. By the end of this video, we will be able to answer all the following questions as well. How to find nth highest salary in SQL Server using a Sub-Query How to find nth highest salary in SQL Server using a CTE How to find the 2nd, 3rd or 15th highest salary Let's use the following Employees table for this demo Use the following script to create Employees table Create table Employees ( ID int primary key identity, FirstName nvarchar(50), LastName nvarchar(50), Gender nvarchar(50), Salary int ) GO Insert into Employees values ('Ben', 'Hoskins', 'Male', 70000) Insert into Employees values ('Mark', 'Hastings', 'Male', 60000) Insert into Employees values ('Steve', 'Pound', 'Male', 45000) Insert into Employees values ('Ben', 'Hoskins', 'Male', 70000) Insert into Employees values ('Philip', 'Hastings', 'Male', 45000) Insert into Employees values ('Mary', 'Lambeth', 'Female', 30000) Insert into Employees values ('Valarie', 'Vikings', 'Female', 35000) Insert into Employees values ('John', 'Stanmore', 'Male', 80000) GO To find the highest salary it is straight forward. We can simply use the Max() function as shown below. Select Max(Salary) from Employees To get the second highest salary use a sub query along with Max() function as shown below. Select Max(Salary) from Employees where Salary [ (Select Max(Salary) from Employees) To find nth highest salary using Sub-Query SELECT TOP 1 SALARY FROM ( SELECT DISTINCT TOP N SALARY FROM EMPLOYEES ORDER BY SALARY DESC ) RESULT ORDER BY SALARY To find nth highest salary using CTE WITH RESULT AS ( SELECT SALARY, DENSE_RANK() OVER (ORDER BY SALARY DESC) AS DENSERANK FROM EMPLOYEES ) SELECT TOP 1 SALARY FROM RESULT WHERE DENSERANK = N To find 2nd highest salary we can use any of the above queries. Simple replace N with 2. Similarly, to find 3rd highest salary, simple replace N with 3. Please Note: On many of the websites, you may have seen that, the following query can be used to get the nth highest salary. The below query will only work if there are no duplicates. WITH RESULT AS ( SELECT SALARY, ROW_NUMBER() OVER (ORDER BY SALARY DESC) AS ROWNUMBER FROM EMPLOYEES ) SELECT SALARY FROM RESULT WHERE ROWNUMBER = 3
Views: 744529 kudvenkat
Space Management in Extents and Segments - DBArch Video 31 / DBPerf Video 13
 
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In this video you will understand about the following - Dictionary managed Vs Locally Managed Tablespaces - Manual Vs Automatic Segment Space Management - PCTFREE and PCTUSED - Row Migration and Row Chaining
Views: 3860 Ramkumar Swaminathan