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Oracle SQL PLSQL 12C Tutorial 19 - Default Value
 
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This Video Tutorial Will Describe how to set the default value of the column. This command will also work on other versions of database like Oracle 11g Database, Oracle 10g Database, Oracle 9i Database, Oracle 8i Database, Oracle 8 Database and so on. DEFAULT clause is used to set the value for the table column. DEFAULT clause insert the predefined value into the column if you left it blank while inserting the column. Full Syntax will be given in this video tutorial about how to use the DEFAULT clause. Along with live example to demonstrate DEFAULT clause. All the keywords, format, mandatory clauses etc are described in this video.
Chapter 14 Set DEFAULT value in MySQL Hindi
 
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Like, Comment, Share and SUBSCRIBE Visit www.mysirg.com for all FREE videos
91/125 Oracle PLSQL: Creating Triggers / Default Value
 
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Creating Triggers in oracle Learn Oracle PLSQL EXAM 1Z0-144
Views: 618 khaled alkhudari
107- Oracle SQL 12c: Manipulating Data- Explicit default value
 
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تعلم اوراكل حتى الاحتراف تعلم اوراكل من الصفر EXAM 1Z0-061 EXAM 1Z0-071
Views: 911 khaled alkhudari
How to set default value in a field in SQL table.
 
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Using design view, set a default value in a field in SQL server table. More on: http://www.knowils.com
Views: 1723 Knowils
Add a column with a default value to an existing table in SQL Server
 
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Published on Aug 13, 2017: In this video tutorial, we will learn to add a new column to an existing table in SQL server. We will also learn to specify default values for the new column Please find below the create table command to create the new tables with data. USE [AdventureWorksDW2012] GO Select * into [dbo].[Employee_1] from ( Select 1 EmployeeID,'Frank' EmployeeName Union Select 2 EmployeeId,'Raj' EmployeeName Union Select 3 EmployeeID,'Json' EmployeeName Union Select 4 EmployeeId,'Bing' EmployeeName )A Select * into [dbo].[Employee_2] from ( Select 1 EmployeeID,'Frank' EmployeeName Union Select 2 EmployeeId,'Raj' EmployeeName Union Select 3 EmployeeID,'Json' EmployeeName Union Select 4 EmployeeId,'Bing' EmployeeName )A Alter table command for the two tables is given below. Alter Table dbo.Employee_1 Add Salary int Null Constraint DefaultSalary Default -99999 Alter Table dbo.Employee_2 Add Salary int Not Null Constraint DefaultSalary_2 Default -99999 Just follow the video to make additional changes. Previous Video:https://youtu.be/NmWpKKn-1Oo SUBSCRIBE to learn more about Power BI,Power Query, Power Pivot, Excel and SQL Server! https://www.youtube.com/channel/UCYYHFZpm5GbaOmQKDNSTGLw Download the sample database used for the demo here: https://goo.gl/SVyVmT Our Playists: SQL Playlist :https://goo.gl/PS5Ep6 DAX PlayList : https://goo.gl/S4W41D Power BI PlayList: https://goo.gl/dXxvnB Power Query Playlist: https://goo.gl/5QS7P4 ABOUT DAGDOO: Website: Home Page: http://www.dagdoo.org/ Power BI Tutorials: http://www.dagdoo.org/excel-learning/tutorial-power-bi-desktop/ Questions? Comments and SUGESTIONS? You will find me here: Twitter: @dagdooe Category: Science & Technology License: Standard YouTube License
Views: 691 Learn 2 Excel
Adding a Default Value to a Field
 
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You know when you are trying to remember someone's name and totally blank out? Don't worry it happens to all of us. BUT - don't let it happen in an automation. In this video, we teach you how to add a default value to a field to avoid that frustrating blank space. Ready to get started with ActiveCampaign? Click here to get started for free: http://bit.ly/2C862cy ___ More from ActiveCampaign… Education Center: https://activecampaign.com/learn Blog: https://activecampaign.com/blog Facebook: https://www.facebook.com/activecampaign/ Instagram: https://www.instagram.com/activecampaign/ LinkedIn: https://www.linkedin.com/company/activecampaign-inc-/ Twitter: https://twitter.com/activecampaign
Views: 230 ActiveCampaign
Personalization  Set Default Value Dependent On Custom Profile Option
 
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Personalization Set Default Value Dependent On Custom Profile Option كيفية إنشاء بروفيل أوبشن (Profile Option) القيمة الخاصة به يتم إختيارها من قائمة (LOV). كيفية عمل قيمة إفتراضية لسبب الحركة (Reason) في الشاشة الخاصة بطلبات الصرف والتحويل (Move Order) بناء علي القيمة الموجوده في البروفيل (Profile Option).
Views: 204 Ahmed Elshayeb
Oracle SQL Tutorial 19 - ON DELETE (SET NULL and CASCADE)
 
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Welcome everyone! Something you need to consider when you are creating foreign keys is what happens if you delete the parent? As a reminder, the parent is the row that has the value you are referencing in the row that has a foreign key. Why is this something important to consider? It's important because foreign keys need to protect us from two primary things, unacceptable INSERT statements, and unacceptable DELETE statements. Let's see what happens when we try to insert incorrect data into the table with the foreign key: INSERT INTO projects VALUES (1, 'Update website homepage', 'CalebCurry') The response tells us plainly that there is no such user in the users table. So this works correctly. Deleting data on the other hand works a bit differently because the database does not know what you want to do with the child row when you delete the parent from the parent table. By default, we will get an error message that prevents the parent from being deleted, but there are some other options. How do we configure this? This is where the ON DELETE statement comes in. We add the keywords ON DELETE right after the foreign key and then we can give it the option of CASCADE or SET NULL. CASCADE means that if we delete the parent, we are also going to delete the child. In our situation what that means is that if somebody creates a project in our project table and then that persons account gets deleted, all of the projects he owns will also be deleted. CASCADE: CREATE TABLE projects( project_id NUMBER, Project_name VARCHAR2(50 CHAR) UNIQUE, creator VARCHAR2(50 CHAR) NOT NULL, CONSTRAINT projects_pk PRIMARY KEY (project_id), CONSTRAINT projects_users_fk FOREIGN KEY (creator) REFERENCES users (username) ON DELETE CASCADE ) SET NULL will take the value in the child table and get rid of it. What you are left with is NULL. This means that we have an orphaned child. The first thought you might have is that it is a bad thing to have an orphaned child, but in databases that is not always so. In our application if we had it set to SET NULL, when a user account gets deleted the projects would remain in existence they would just lack a creator. This might be a good thing if you are concerned about the long term survival of a project, this might be the route you want to go. It ultimately depends on the application purpose. If you don't like CASCADE or SET NULL, you can leave the entire ON DELETE statement and just have Oracle throw an error when a parent is deleted. As for us, we are going to use ON DELETE CASCADE. We need to use this with extreme caution. If you are not careful, someday you will run a delete a row and that will cascade through you database deleting a bunch of stuff you didn't want to delete. Stuff happens, so make sure you back up your database every once in eternity. Now, in the last video we started with a database design that had three tables. We've only created two in this video. In the next video we are going to create the next one, which is a little special. Then we'll finish things up by adding some indexes. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me on Patreon! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 16256 Caleb Curry
Oracle SQL PLSQL 12C Tutorial 19   Default Value
 
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This Video Tutorial Will Describe how to set the default value of the column. This command will also work on other versions of database like Oracle 11g Database, Oracle 10g Database, Oracle 9i Database, Oracle 8i Database, Oracle 8 Database and so on. DEFAULT clause is used to set the value for the table column. DEFAULT clause insert the predefined value into the column if you left it blank while inserting the column. Full Syntax will be given in this video tutorial about how to use the DEFAULT clause. Along with live example to demonstrate DEFAULT clause. All the keywords, format, mandatory clauses etc are described in this video. The background music comes from Ross Bugden - Music channel. Link mentioned below: https://www.youtube.com/channel/UCQKGLOK2FqmVgVwYferltKQ and music link is : https://www.youtube.com/watch?v=BY0U432m8W0
Views: 19 game hounds
Product - setting default value on creating
 
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OpenERP 7: Product - setting default value on creating
Views: 229 Nguyễn Duy Phong
ADF Insider Essentials - Referencing a default value from another entity object
 
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In this ADF Insider Essentials you will learn how you can default an attribute value with a value populated from a different entity object. For example, an order item price is defaulted to the suggested wholesale price for the product - or a Salary is defaulted to the Min Salary for that Job grade.
Views: 4874 ADFInsiderEssentials
PL/SQL tutorial 29: How To Create Cursor Parameter With Default Value By Manish Sharma
 
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PL/SQL Tut 29 learn how to create parameterized cursor with default value in Oracle Database By Manish Sharma on RebellionRider.com ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/cursor-parameter. Previous Tutorial ► Cursor Parameters: https://youtu.be/w1yeQq9DAYU ► PL/SQL Blocks: https://youtu.be/rbarR4_gaH8 ► How To Install Oracle 11g: https://youtu.be/d_CyuCLC3Ls ------------------------------------------------------------------------- ►►►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: 31379 Manish Sharma
Set Default Value for Rate Field in Transaction Item Model
 
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Set Default Value for Rate Field in Transaction Item Model
Views: 37 vimapps
Default Value for Date Field in Query Criteria
 
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real post be on http://andrejusb.blogspot.com/2010/02/default-value-for-date-field-in-query.html and http://juddi-oracle.blogspot.com/
Views: 1242 juddioracle
Oracle Jdeveloper12c ADF  - 1) how to set and get Value
 
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How to set and get Value using button Click Visit my Blog for more tutorials ... http://parasshahjdeveloper12c.blogspot.in/
Views: 2726 Paras Shah
SQL,  How to insert date data type, lesson 14
 
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14th video of the series, learning structured Query Language. How to insert date data type into a column. Using oracle platform.
Views: 43651 hammadshams
auto increment in sql oracle - ( Auto increment field )
 
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auto increment in sql oracle ----------------------------------------------- CREATE table customers ( customer_id int not null, customer_name varchar(50), primary key (customer_id) ); create sequence customer_id minvalue 1 start with 1 cache 10; insert into customers values(customer_id.nextval,'maxwel'); -- to drop sequence drop sequence customer_id
Views: 6350 Data Disc
MySQL 17 - ON DELETE and ON UPDATE
 
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Now, what happens when you have successfully created a reference, and now you try deleting the parent? This is where the ON DELETE clause come in. This is essentially how we configure how strict a foreign key is. There are 3 options you can give for an ON DELETE: RESTRICT / NO ACTION Yes - In MySQL they are the same, but not all DBMS. CASCADE Yes SET NULL Yes Now the default is RESTRICT. This means that when you try to delete a parent row, MySQL is going to throw an error and not let you. Cascade means that if you delete the parent row, any rows that reference that parent will also be deleted. This is pretty dangerous and not often recommended. SET NULL will set the foreign key to be NULL. Now obviously, this is going to require that the foreign key is not labelled NOT NULL. In addition to the ON DELETE clause, there is the ON UPDATE clause. This one is a little less common because it configures what happens when a parent value changes. Obviously, when you are referencing a primary key, the ON UPDATE clause is nearly useless. That's because the primary key value is never supposed to change. If, on the other hand, we have a foreign key referencing a UNIQUE column that is not a primary key, it may change occasionally. So the only times you have to worry about the ON UPDATE clause is with foreign keys referencing UNIQUE columns that are not a primary key, and when you have natural keys that break the rules and actually do change at some point in time. The ON UPDATE clause has the same options as the ON DELETE clause and they all work the same way. Now, the last thing you need to know about foreign keys is that they must match the data type of the column you are referencing. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 15031 Caleb Curry
3-Default Values for Attributes in Entity Objects
 
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Default Values for Attributes in Entity Objects Oracle ADF Jdeveloper
Views: 90 Values
Maximo - Setting up a default value through Database Configuration pub
 
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Setting up a default value in Database Configuration by Siva Suppiah
Views: 188 IBM IoT Support
NULL values in DBMS...how to insert null value in table in sql
 
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how to insert null value in table in sql #sqltutorial#oracletutorial#databasetutorial
Views: 1629 Viral Fun Tube
08 of  13 - Oracle APEX 5 - List of values (LOV) for a field in a form; display a hidden column
 
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A new series using APEX 18.1 is now available. https://youtu.be/vgrkiIpJEiQ This is one in a series of videos about creating an application using Oracle APEX 5. In this video we create two lists of values (LOVs) in the Shared Components section of our application. We use each LOV in place of a field in a form. We see how APEX will help us write the SQL for a LOV. The difference between a "display value"and a "return value"is discussed. Finally, we display the primary key field in a form, which APEX hides by default. See the primary key field in a form can be helpful during application development. SQL scripts for this series are available to download at: http://db.kreie.net
Views: 37355 Jennifer Kreie
Oracle APEX Themes, Validation, DefaultValue (narrator voice Indonesian)
 
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Video tutorial yang memberikan ilustrasi cara mengganti tampilan (Themes), melakukan validasi not null pada sebuah item dan penggunaan default value pada item yang berupa pilihan.
Views: 848 Boby Siswanto
Oracle Apex 5.1(15)-Set Value  Dynamic Action Part-7 in Oracle APEX (in hindi By JavaInHand)
 
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PL/SQL EXPRESSION CODE to_char(sysdate,'DD_MON_YY') ------------------------------------------------------------------------------ Oracle Apex 5.1(15)-Set Value Dynamic Action Part-7 in Oracle APEX (in hindi By JavaInHand) ------------------------------------------------------------------------------------------------------- Website:- www.javainhand.com
Views: 1038 JavaInHand
How To Use EL To Set One Value Based On Another
 
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How To Use Expression Language To Set One Field Value Based On Another in Page Composer
Lect Create Table Rules
 
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How to create table in any DBMS, how to set default value for any column, data types. Oracle DBMS Table Creation Method...
Views: 129 Data Science Center
Angular 5: How to Bind/Get selected value/Set Default  in SelectList
 
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In this tutorial, we will see how to : 1. Bind the data to the select list in Angular 5/4 using ngFor 2. To get the selected value from the dropdown list 3. To set the default value of the dropdown list 4. Call a custom function on the change event of the dropdownlist
Views: 31264 Techie Ocean
SQL VIDEO TUTORIAL DEFAULT CONSTRAINT GRAPHICALY & QUERY TUTORIAL
 
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The DEFAULT constraint is used to insert a default value into a column. The default value will be added to all new records, if no other value is specified.
Views: 227 Mahamud Hasan
SQL Server 17 - ON DELETE and ON UPDATE
 
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Now, what happens when you have successfully created a reference, and now you try deleting the parent? This is where the ON DELETE clause comes in. This is essentially how we configure how strict a foreign key is. There are 4 options you can give for an ON DELETE: Standard SQL Server NO ACTION Yes (Default) CASCADE Yes SET NULL Yes SET DEFAULT Yes Now the default is NO ACTION. This means that when you try to delete a parent row, SQL Server is going to throw an error and not let you. Cascade means that if you delete the parent row, any rows that reference that parent will also be deleted. This is pretty dangerous and not often recommended. SET NULL will set the foreign key to be NULL. Now obviously, this is going to require that the foreign key is not labelled NOT NULL. Finally, set DEFAULT will change the reference to the child row to some default value. We have not discussed defaults, but a column can have a default value. For example, we could make a deleted user in our Users table, and set the default for the foreign key to be the deleted user, and when any other users are deleted it will default to the deleted user UserId. In addition to the ON DELETE clause, there is the ON UPDATE clause. This one is a little less common because it configures what happens when a parent value changes. Obviously, when you are referencing a primary key, the ON UPDATE clause is nearly useless. That's because the primary key value is never supposed to change. If, on the other hand, we have a foreign key referencing a UNIQUE column that is not a primary key, it may change occasionally. So the only times you have to worry about the ON UPDATE clause is with foreign keys referencing UNIQUE columns that are not a primary key, and when you have natural keys that break the rules and actually do change at some point in time. The ON UPDATE clause has the same options as the ON DELETE clause and they all work the same way. Now, the last thing you need to know about foreign keys is that they must match the data type of the column you are referencing. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 5429 Caleb Curry
LAST VALUE function in SQL Server
 
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last_value function in sql server 2008 sql server last_value function returns incorrect data sql server last_value function example sql server last_value function with partition example LAST_VALUE function in SQL Server In this video we will discuss LAST_VALUE function in SQL Server. LAST_VALUE function Introduced in SQL Server 2012 Retrieves the last value from the specified column ORDER BY clause is required PARTITION BY clause is optional ROWS or RANGE clause is optional, but for it to work correctly you may have to explicitly specify a value Syntax : LAST_VALUE(Column_Name) OVER (ORDER BY Col1, Col2, ...) LAST_VALUE function not working as expected : In the following example, LAST_VALUE function does not return the name of the highest paid employee. This is because we have not specified an explicit value for ROWS or RANGE clause. As a result it is using it's default value RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW. SELECT Name, Gender, Salary, LAST_VALUE(Name) OVER (ORDER BY Salary) AS LastValue FROM Employees LAST_VALUE function working as expected : In the following example, LAST_VALUE function returns the name of the highest paid employee as expected. Notice we have set an explicit value for ROWS or RANGE clause to ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING This tells the LAST_VALUE function that it's window starts at the first row and ends at the last row in the result set. SELECT Name, Gender, Salary, LAST_VALUE(Name) OVER (ORDER BY Salary ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS LastValue FROM Employees LAST_VALUE function example with partitions : In the following example, LAST_VALUE function returns the name of the highest paid employee from the respective partition. SELECT Name, Gender, Salary, LAST_VALUE(Name) OVER (PARTITION BY Gender ORDER BY Salary ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS LastValue FROM Employees Text version of the video http://csharp-video-tutorials.blogspot.com/2015/10/lastvalue-function-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/10/lastvalue-function-in-sql-server_9.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html Full SQL Server Course https://www.youtube.com/playlist?list=PL4cyC4G0M1RQ_Rm52cQ4CcOJ_T_HXeMB4 All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 33792 kudvenkat
Window functions in SQL Server
 
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sql server window function example window function sql server example sql server rows range clause sql server rows between 1 preceding and 1 following In this video we will discuss window functions in SQL Server In SQL Server we have different categories of window functions Aggregate functions - AVG, SUM, COUNT, MIN, MAX etc.. Ranking functions - RANK, DENSE_RANK, ROW_NUMBER etc.. Analytic functions - LEAD, LAG, FIRST_VALUE, LAST_VALUE etc... OVER Clause defines the partitioning and ordering of a rows (i.e a window) for the above functions to operate on. Hence these functions are called window functions. The OVER clause accepts the following three arguments to define a window for these functions to operate on. ORDER BY : Defines the logical order of the rows PARTITION BY : Divides the query result set into partitions. The window function is applied to each partition separately. ROWSor RANGE clause : Further limits the rows within the partition by specifying start and end points within the partition. The default for ROWS or RANGE clause is RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW Let us understand the use of ROWS or RANGE clause with an example. Compute average salary and display it against every employee We might think the following query would do the job. SELECT Name, Gender, Salary, AVG(Salary) OVER(ORDER BY Salary) AS Average FROM Employees As you can see from the result, the above query does not produce the overall salary average. It produces the average of the current row and the rows preceeding the current row. This is because, the default value of ROWS or RANGE clause (RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) is applied. To fix this, provide an explicit value for ROWS or RANGE clause as shown below. ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING tells the window function to operate on the set of rows starting from the first row in the partition to the last row in the partition. SELECT Name, Gender, Salary, AVG(Salary) OVER(ORDER BY Salary ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS Average FROM Employees The same result can also be achieved by using RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING Well, what is the difference between ROWS and RANGE We will discuss this in a later video The following query can be used if you want to compute the average salary of 1. The current row 2. One row PRECEDING the current row and 3. One row FOLLOWING the current row SELECT Name, Gender, Salary, AVG(Salary) OVER(ORDER BY Salary ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING) AS Average FROM Employees Text version of the video http://csharp-video-tutorials.blogspot.com/2015/10/window-functions-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/10/window-functions-in-sql-server_7.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: 60130 kudvenkat
How To Obtain Username Value from Login Page on Oracle APEX 5.1
 
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To obtain username value from login page on Oracle APEX application we can use 2 ways: 1. &APP_USER. for Static Value 2. :APP_USER for PL/SQL Expression demo can be found here: http://developapex.com/apex/f?p=108
Views: 3289 Boby Siswanto
SQL Server Default Constraint
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg The DEFAULT constraint is used to provide a default value for a column. The default value will be added to all new records IF no other value is specified.
Views: 67 IT Port
Oracle Database11g tutorials 14 : How to CREATE TABLE using sql developer and command prompt
 
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Oracle Database11g tutorials 14 How to Create table using command prompt and Create table using sql developer Blog Link http://bit.ly/1TkY4Oe Time Line 0:25 Introduction of Tables in Database 1:03 What is Create Table (Introduction of create table) 1:30 Syntax of Create Table 2:08 How to create table using Command Prompt 4:55 How to create table using SQL Developer Links for Oracle Database tutorials 4: database connectivity using SQL developer and command prompt http://youtu.be/wSqoXRlXDUU You can have indepth knowledge about SQL create table here http://www.rebellionrider.com/sql-create-table.html 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 E-Mail [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 RebellionRider.com Today in this oracle database tutorial we will see How to CREATE A TABLE. if we have to define a table in layman language then we can say that Tables are just a collection of Rows and Columns but In RDBMS tables are database objects which help in organizing data into ROWS and COLUMNS. We can also say that SQL tables are kind of data structure which are used by database for efficient storage of data. To create a table in our database we use SQL CREATE TABLE command. SQL CREATE TABLE is a type of DATA DEFINITION LANGUAGE also known as DDL. To Create a table in your schema you will require CREATE TABLE system privilege. In our future videos we will see what are system and object privileges and how to grant them to a user. Today for this video we will be using Sample schema HR which already has all the necessary privileges. Ohk Let's see the syntax. CREATE TABLE table name ( column name1 Data-Type(size), column name2 Data-Type(size), ..... ); CREATE TABLE is an oracle reserved word or say an Oracle key word whereas There are 3 different ways of creating a table in Oracle database. Creating a table using Command Line Interface (CLI) in Oracle database For demonstrating how to create table in oracle database using CLI, I'll be using Command prompt. Thats how we create table using command prompt. you can check your table structure by DESCRIBE command for that just write DESC and your table name. Like this Another way of creating a table is by using Graphic user interface (GUI) in Oracle database To demonstrate how to create table using GUI we will use SQL developer. Lets open our SQL developer I am connected to HR schema if you do not know how to create a connection to database using SQL developer please watch my oracle database tutorial 4 that explains database connectivity using SQL developer and command prompt. Link for this video is in the description below. So lets create a table. Creating a table using SQL developer is very easy we do not have to fire any query here. Let's start First of all right click on your connection in which you want to create a table and choose schema browser. This will open a separate schema browser pane or you can expend your connection by clicking this + sign and then right click on table and choose New Table. However I prefer working with schema browser so let's skip to schema browser pane here from the first drop-down list you can choose connection name and in the second drop down list you can choose what database objects you want to work with we want to create a table thus I'll choose table and then click this arrow here and choose option for new table Ok we have created a table wizard first of all give a unique name to your table and add some column as well. For this, click the green plus button. Now we already have a column so give it some name. Also choose a datatype from the list and specify any size you can check this not null column if in case you want to make this a mandatory column you can also specify default value and constraint If you want to make this column a primary key you can click here In my future video i'll show you what are these constraints and different ways of applying them on a column in a table. for this video we will concentrate on create table only so when you are done with all your columns click ok Thats your table You can double click on your table here and can see its structure. Thats it
Views: 179628 Manish Sharma
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Check constraint is used to validate data according to business logic, whether it be limiting the value range or allowing some specific string format or data format. This oracle tutorial is about how to add, remove, enable or disable check constraints in oracle 12c. Here are the list of ddl commands for check constraint: ALTER TABLE table_name ADD CONSTRAINT constraint_name CHECK column_name condition [DISABLE]; ALTER TABLE table_name DROP CONSTRAINT constraint_name; ALTER TABLE table_name ENABLE CONSTRAINT constraint_name; ALTER TABLE table_name DISABLE CONSTRAINT constraint_name;
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Follow this step by step tutorial to learn how to set environment variables from system settings in the windows operating system. Don't forget to check out our site http://howtech.tv/ for more free how-to videos! http://youtube.com/ithowtovids - our feed http://www.facebook.com/howtechtv - join us on facebook https://plus.google.com/103440382717658277879 - our group in Google+ In this tutorial, you will learn how to set environment variables in windows. Operating systems require environment variables as settings and configurations for several processes. Although these variables are automatically defined or initialized during the installation of the system or specific software, in windows, to set environment variables manually is not a difficult task. That's because windows allows us to manually add, remove or edit environment variables through system settings according to our requirements. Step # 1 -- Opening environment variables In windows, to set environmental variables, you can take two paths. Either we can go to control panel, then access the system security option, and then the system option. Or we can simply right click on My Computer and select its properties. Once we are in the system window, select the advanced system settings from the list on the left side. A new window will pop up. Over here, click on the environment variables button near the bottom of this window and you can now access the Windows environment variables. Step # 2 -- Adding a variable In this window there are two sets of environment variables, one is the "user variables", and the other is the "system variables". Choose the new button in the user variables section to open the "define a new variable" dialog window. Over here, you will be required to define the variable name as anything you wish to set, such as temporary and then define its value as the path to the directory. With that done, let's complete this process by pressing OK. Your new environment variable has been created now. Step # 3 -- Editing and removing a variable To edit an environment variable, click on it, and then click on the edit button to open a dialog window. Here we can edit the name and value of the variable. Likewise to remove an environment variable, simply click on the variable and then click on the delete button. Once all the definitions are complete, close the window and restart your computer to allow the operating system to load these settings on boot. And that's basically all you need to know for how to set environment variables in windows.
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This is SQL tutorial video for beginners. I have used Oracle 12c for its implementation. If you don't have oracle 12c downlad it from Oracle official website. It is open source, you don't need to pay for it. and Watch how to install Oracle 12c here:-https://www.youtube.com/watch?v=DXh-hmDb0xE&t=5s 1. create table tablename 2.insert into tablename values(); 3.Alter table add field datatype 4.Delete from tablename where conditions 5.UPDATE tablename SET values where condition If you have any doubt, Please comment below and share it because sharing is caring!! Have a great programming!!
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