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FUNCTIONS IN ORACLE PL/SQL (basic to advance examples)
 
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This video is to understand how to create an oracle pl/sql function, the video demonstrates the use of in, out and in out parameter types. The video also explains on how to call a function from a pl/sql block and from a select statement.
Views: 3856 Kishan Mashru
PL/SQL tutorial 38: Introduction to PL/SQL functions in Oracle Database
 
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PL/SQL tutorial for beginners Introduction to PL/SQL functions in Oracle Database by Manish Sharma ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/introduction-to-plsql-function Previous Tutorial ► Blocks in Oracle Database https://youtu.be/rbarR4_gaH8 ► ------------------------------------------------------------------------- ►►►Let's Get Free Uber Cab◄◄◄ Use Referral Code UberRebellionRider and get $20 free for your first ride. ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ ___Facebook Official Page___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL, MY VIEWERS AND SUBSCRIBERS
Views: 45794 Manish Sharma
Oracle || PL/SQL Functions (UDF) Part - 2 by dinesh
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
PL/SQL tutorial 39: How To Create PL/SQL Functions in Oracle Database By Manish Sharma
 
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PL/SQL Tutorial for beginners on RebellionRider.com How To Create PL/SQL Functions in Oracle Database ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/how-to-create-pl-sql-function Previous Tutorial ► Introduction To PL/SQL Function: https://youtu.be/6OJIrPx61mU ► PL/SQL Variables: https://youtu.be/2MNmodawvnE ► PL/SQL Constants: https://youtu.be/r1ypg7WH4GY ------------------------------------------------------------------------- ►►►Let's Get Free Uber Cab◄◄◄ Use Referral Code UberRebellionRider and get $20 free for your first ride. ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ ___Facebook Official Page___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 39028 Manish Sharma
Oracle || Oracle Number Functions Part -1 by Siva
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS , ADF, INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo............
PL-SQL Functions, How to Create PL SQL Function using Table in Oracle 11g Database
 
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PL-SQL Functions, How to Create PL SQL Function using Table in Oracle 11g Database PL-SQL tutorial for Beginners in Hindi and English
Oracle Tutorial || Oracle|Sql Functions Part - 1 by basha
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
Oracle PL/SQL - Creating Functions
 
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Oracle PL/SQL - Creating Functions https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Anadi Sharma, Tutorials Point India Private Limited.
Get Started with Table Functions Module 1: Overview and Fundamentals
 
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This video is part of the Oracle Dev Gym class "Getting Started with Table Functions". This module offers an overview of table functions: what they are, how they work, and a simple example of a table function that returns a collection of scalar values. You can watch this video independent of the class, but then you miss out on the videos and quizzes. So we encourage you to go to the page below and register for the class! https://devgym.oracle.com/pls/apex/dg/class/getting-started-with-pl-sql-table-functions.html ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2018 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.
Oracle ||  Functions in SQL Part  - 1  by Siva
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS , ADF, INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo............
Oracle - SQL - Functions
 
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Oracle - SQL - Functions Watch more Videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Anadi Sharma, Tutorials Point India Private Limited.
Oracle tutorial : Conversion Functions In Oracle
 
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Oracle tutorial : Conversion Functions In Oracle. oracle tutorial for beginners sql convert This Oracle tutorial video will show how to use conversion function in sql oracle TO_CHAR() , TO_DATE() , TO_NUMBER() these are mostly used functions. Conversions functions are used to convert one data type to another type. 1)To_CHAR ( number | date, [fmt], [nlsparams] ) The TO_CHAR function converts the number or date to VARCHAR2 data type in the specified format (fmt). 2)TO_NUMBER( char, [‘fmt’] ) The TO_NUMBER function converts the characters to a number format. 3)TO_DATE( char, [‘fmt’] ) The TO_DATE function converts the characters to a date data type. — TO_CHAR() fmYYYY YYYY/MM/DD SELECT TO_CHAR(SYSDATE, ‘YYYY/MM/DD’) FROM DUAL; — SO USING TO_CHAR U CAN GET FORMATE OF DATE ACCORDING TO UR REQURMENTS —- $99,999 99.99 99,00 SELECT TO_CHAR(487, ‘$99,0’) FROM DUAL; — U CAN GET DATA IN CURRENCY FORMAT —- TO_NUMBER() SELECT TO_NUMBER(‘1745′,’99999’) FROM DUAL; SELECT TO_NUMBER(‘1,47,982′,’9,99,999′) FROM DUAL; —- TO_DATE() — THIS CONVERT VARCHAR DATE TO PROPER DATE FORMAT SELECT TO_DATE(’30-JAN-1995′,’DD-MON-RRRR’) FROM DUAL; For more tutorial please visit #techquerypond https://techquerypond.com https://techquerypond.wordpress.com https://twitter.com/techquerypond sql convert convert function in sql
Views: 3825 Tech Query Pond
Oracle PL/SQL functions with examples
 
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Oracle PL/SQL functions a few examples
Views: 2778 Subhroneel Ganguly
SQL with Oracle 10g XE   Using the ROUND and FLOOR Functions
 
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In this video I use the ROUND and FLOOR functions found in SQL. I use the ROUND function to round my figures to the nearest dollar and view the results to see how it rounds. I then round those same figures to the nearest tenth and hundredth. Using a negative number as my parameter will allow me to round to tens, hundreds, etc. The FLOOR function will just drop the decimal values without rounding.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: 4200 Lecture Snippets
Oracle SQL functions and Group Bys
 
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Oracle SQL functions and Group Bys
Views: 692 Chris Ostrowski
PLS-6: Using SQL Functions in PL/SQL
 
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Oracle For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=5 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors ++++++++++++++++++++++++++++++++++++++++++++ SQL functions are built into Oracle Database and are available for use in various appropriate SQL statements. Do not confuse SQL functions with user-defined functions written in PL/SQL. If you call a SQL function with an argument of a datatype other than the datatype expected by the SQL function, then Oracle attempts to convert the argument to the expected datatype before performing the SQL function. If you call a SQL function with a null argument, then the SQL function automatically returns null. The only SQL functions that do not necessarily follow this behavior are CONCAT, NVL, REPLACE, and REGEXP_REPLACE.
Views: 28388 Oresoft LWC
Oracle || Date functions Part-1 by dinesh
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
SIL_FRENCH ORACLE USER DEFINED FUNCTIONS
 
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Link for SILDB website https://www.sildb.com/ SIL_French is for French users who can write queries in French language. In this video explains ORACLE USER DEFINED FUNCTIONS in French language.
Getting Started with PL/SQL Table Functions: Pipelined Table Functions
 
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Pipelined table functions are table functions in which rows are returned or "piped" back to the calling query before the function has completed, avoiding the blocking behavior of normal PL/SQL functions and reduce PGA consumption. This video is part of the Oracle Dev Gym class "Getting Started with Table Functions". You can watch it independent of the class, but then you miss out on the tutorials and quizzes! So visit https://devgym.oracle.com/pls/apex/dg/class/getting-started-with-pl-sql-table-functions.html and register for the class! ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2018 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.
How To Call Object Functions using the Custom Object REST API
 
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Calling Object Function scripts using the REST API in Oracle Sales Cloud
Oracle || String functions Part-1 by dinesh
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
Creating Functions in Oracle PL SQL By Dr. RD Balaji
 
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Help us caption & translate this video! http://amara.org/v/DWUu/
Oracle - SQL - General Functions
 
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Oracle - SQL - General Functions Watch more Videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Anadi Sharma, Tutorials Point India Private Limited.
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.
User defined functions in sql
 
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This video explains the user defined functions and the advantages with user defined functions with simplified explanation.
Views: 2580 Palle University
Using java callouts and custom XPath functions with Oracle Service Bus
 
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In these short video I show 2 methods of calling the custom java code from Oracle Service Bus: java callout action and custom XPath function.
Views: 10185 Oracle IMC
PLSQL Procedures and Functions
 
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Views: 140279 TEK CLASSES
PL-SQL Functions
 
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This class of PL-SQL explains functions and its features with examples, stored procedures, difference between functions and SP and creating local functions within stored procedures.
Views: 75893 learningdom
Getting Started with PL/SQL Table Functions 3: Streaming Table Functions
 
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Streaming table functions are functions executed in the FROM clause of a query as part of a sequence of data transformations, all occurring within a single SQL statement. This video shows how to define a streaming table function and use it in Oracle SQL. Part of the Getting Started with PL/SQL Table Functions class at the Oracle Dev Gym: https://devgym.oracle.com/pls/apex/dg/class/pl-sql-table-functions.html ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2018 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.
SQL Tutorial : Difference Between PLSQL Procedures and  Functions
 
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SQL Tutorial : Oracle PLSQL Difference Between Procedures and Functions in Oracle SQL Tutorial SQL Tutorial for beginners PLSQL Tutorial PLSQL Tutorial for beginners PL/SQL Tutorial PL SQL Tutorial PL SQL Tutorial for beginners PL/SQL Tutorial for beginners Oracle SQL Tutorial
Views: 1205 TechLake
Stored Procedures in PL/SQL | Oracle PL/SQL Tutorial Videos | Mr.Vijay Kumar
 
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Stored Procedures:- A Stored Procedure is also a Named PL/SQL block the accepts some input in the form of parameters and performs some task and many or many not returns a value Procedures are created to perform one or more dml operations over database.
Views: 46881 Naresh i Technologies
PL/SQL Tutorial : PLSQL Functions with OUT Parameter & DML Operations inside Function
 
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Oracle PLSQL Tutorials: PLSQL Functions with OUT Parameter & DML Operations inside Function SQL Tutorial SQL Tutorial for beginners PLSQL Tutorial PLSQL Tutorial for beginners PL/SQL Tutorial PL/SQL Tutorial for beginners Oracle SQL Tutorial
Views: 759 TechLake
Oracle || Oracle Number Functions Part -2 by Siva
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS , ADF, INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo............
34. Aggregate Functions in PL/SQL Oracle
 
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In this video you will learn about Aggregate Functions 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: 6653 ITORIAN
36. Number Functions in Oracle
 
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In this video you will learn about Number Functions in Oracle. Unlike other programming language Oracle also uses functions to perform common operations. 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: 16356 ITORIAN
PLS-23: PL/SQL Stored Functions
 
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PL/SQL Stored Functions For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=5 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 27102 Oresoft LWC
Oracle DENSE_RANK Function
 
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https://www.databasestar.com/oracle-dense_rank/ The Oracle DENSE_RANK function allows you to calculate a rank of a row in a group of rows. It returns this rank as a NUMBER value. This function can be used as either an analytic or an aggregate function, and the syntax depends on how you use it. As an aggregate function it looks like this: DENSE_RANK ( expr, [expr(n)] ) WITHIN GROUP ( ORDER BY (order_expr [ASC|DESC] [NULLS FIRST|LAST] ) These parameters are: - expr: this is the value to search for in a particular table. You can specify multiple search values, and just separate them by a comma. - order_expr: this is used to order the expr values by, because you get a different results depending on what order you rank the values in. - NULLS FIRST or LAST: this is where you can specify if you want to have NULL values appear at the top of your ranking order or at the bottom. As an analytic function, it looks like this: DENSE_RANK() OVER ( [query_partition_clause] order_by_clause) The parameters are: - query_partition_clause: this is the expression that the ranking is “grouped” by, as analytic functions allow you to group data within rows. - order_by_clause: this is the expression to order your results by to determine a rank. For this function, if two records have the same sort or rank position, they will have the same RANK value. It won’t cause a gap in the rankings, unlike the RANK function which does cause a gap. For more information about the Oracle DENSE_RANK function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-dense_rank/
Views: 310 Database Star
Date Functions (Introduction to Oracle SQL)
 
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Learn what date functions are and see some examples of them. The full Introduction to Oracle SQL course is available here: https://www.databasestar.com/introduction-to-oracle-sql-course/
Views: 235 Database Star
Oracle Tutorial || Oracle|Adv Sql | Analytical Functions Part-2 by basha
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
Create a SQL Scalar User Defined Function SQL Server 2012 - SQL Training Video
 
04:59
In this Demo: Create a SQL Server Scalar User Defined Function Accept an Input Parameter Return a Scalar value Create a simple function that gets a customers address when customers ID is provided Business Inquires: For booking or registration information please email: info @ ProDataMan. com Professional Data Management www.ProDataMan.com LIKE us on Facebook www.facebook.com/ProDataMan Follow us on Twitter www.Twitter.com/ProDataMan/ @ProDataMan
ORACLE SQL NUMERIC FUNCTIONS
 
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This video shows Oracle numeric function.
Views: 1563 SQL TUTORIALS
SIL_GERMAN ORACLE USER DEFINED FUNCTIONS Example 2
 
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Link for SILDB website https://www.sildb.com/ SIL_German is for German users who can write queries in German language. In this video explains ORACLE USER DEFINED FUNCTIONS Example in German language.
PL/SQL: Mutating Triggers Part-1
 
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In this tutorial, you'll learn... PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle Database (since version 7), TimesTen in-memory database (since version 11.2.1), and IBM DB2 (since version 9.7).[1] Oracle Corporation usually extends PL/SQL functionality with each successive release of the Oracle Database. PL/SQL includes procedural language elements such as conditions and loops. It allows declaration of constants and variables, procedures and functions, types and variables of those types, and triggers. It can handle exceptions (runtime errors). Arrays are supported involving the use of PL/SQL collections. Implementations from version 8 of Oracle Database onwards have included features associated with object-orientation. One can create PL/SQL units such as procedures, functions, packages, types, and triggers, which are stored in the database for reuse by applications that use any of the Oracle Database programmatic interfaces. PL/SQL works analogously to the embedded procedural languages associated with other relational databases. For example, Sybase ASE and Microsoft SQL Server have Transact-SQL, PostgreSQL has PL/pgSQL (which emulates PL/SQL to an extent), and IBM DB2 includes SQL Procedural Language,[2] which conforms to the ISO SQL’s SQL/PSM standard. The designers of PL/SQL modeled its syntax on that of Ada. Both Ada and PL/SQL have Pascal as a common ancestor, and so PL/SQL also resembles Pascal in several aspects. However, the structure of a PL/SQL package does not resemble the basic Object Pascal program structure as implemented by a Borland Delphi or Free Pascal unit. Programmers can define public and private global data-types, constants and static variables in a PL/SQL package.[3] PL/SQL also allows for the definition of classes and instantiating these as objects in PL/SQL code. This resembles usage in object-oriented programming languages like Object Pascal, C++ and Java. PL/SQL refers to a class as an "Abstract Data Type" (ADT) or "User Defined Type" (UDT), and defines it as an Oracle SQL data-type as opposed to a PL/SQL user-defined type, allowing its use in both the Oracle SQL Engine and the Oracle PL/SQL engine. The constructor and methods of an Abstract Data Type are written in PL/SQL. The resulting Abstract Data Type can operate as an object class in PL/SQL. Such objects can also persist as column values in Oracle database tables. PL/SQL is fundamentally distinct from Transact-SQL, despite superficial similarities. Porting code from one to the other usually involves non-trivial work, not only due to the differences in the feature sets of the two languages,[4] but also due to the very significant differences in the way Oracle and SQL Server deal with concurrency and locking. There are software tools available that claim to facilitate porting including Oracle Translation Scratch Editor,[5] CEITON MSSQL/Oracle Compiler [6] and SwisSQL.[7] The StepSqlite product is a PL/SQL compiler for the popular small database SQLite. PL/SQL Program Unit A PL/SQL program unit is one of the following: PL/SQL anonymous block, procedure, function, package specification, package body, trigger, type specification, type body, library. Program units are the PL/SQL source code that is compiled, developed and ultimately executed on the database. The basic unit of a PL/SQL source program is the block, which groups together related declarations and statements. A PL/SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END. These keywords divide the block into a declarative part, an executable part, and an exception-handling part. The declaration section is optional and may be used to define and initialize constants and variables. If a variable is not initialized then it defaults to NULL value. The optional exception-handling part is used to handle run time errors. Only the executable part is required. A block can have a label. Package Packages are groups of conceptually linked functions, procedures, variables, PL/SQL table and record TYPE statements, constants, cursors etc. The use of packages promotes re-use of code. Packages are composed of the package specification and an optional package body. The specification is the interface to the application; it declares the types, variables, constants, exceptions, cursors, and subprograms available. The body fully defines cursors and subprograms, and so implements the specification. Two advantages of packages are: Modular approach, encapsulation/hiding of business logic, security, performance improvement, re-usability. They support object-oriented programming features like function overloading and encapsulation. Using package variables one can declare session level (scoped) variables, since variables declared in the package specification have a session scope.
Views: 23777 radhikaravikumar

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