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Articles by Alex Onsman
Page 13 of 15
Bootstrap 4 .card-header-tabs class
Use the card-header-tabs in Bootstrap to style navigation links in card header − Drupal Commerce WooCommerce The header tabs are set on Unordered List using nav-tabs and card-header-tabs class as shown above −Let us see an example to learn how to create Bootstrap 4 card header − Example Bootstrap Example E-commerce Technologies Drupal Commerce WooCommerce Prestashop Shopify Add title here Add content here
Read MoreBootstrap 4 .justify-content-*-start class
Use the justify-content-start class in Bootstrap to justify content in the beginning.The justify-content-*-start class is used in Bootstrap to justify content in the beginning on different screen sizes like the following on small, medium, and large screen sizes −You can try to run the following code to implement the justify-content-*-start class −Example Bootstrap Example Entertainment Bollywood Tollywood Hollywood Bollywood Tollywood Hollywood Bollywood Tollywood Hollywood
Read MoreHow to apply multiple CSS properties using jQuery?
Apply multiple CSS properties using jQuery CSS( {key1:val1, key2:val2....}) method. We can apply as many properties as we like in a single call. Syntax In the below mentioned way we can use the CSS. Here you can pass key as property and val as its value of that property. selector.css( {key1:val1, key2:val2....keyN:valN}) Define Multiple CSS Attributes in jQuery As we mentioned earlier that we will be using jQuery css() method to apply multpile CSS properties on any element. First we will use '$(selector)' to select the element where we wants to apply ...
Read MoreSubclasses, Superclasses, and Inheritance
The Enhanced Entity Relationship Model contains all the features of the Entity Relationship model. In addition to all that, it also contains features of Subclasses, Superclasses and Inheritance.All of these in detail are as follows −SubclassesA subclass is a class derived from the superclass. It inherits the properties of the superclass and also contains attributes of its own. An example is:Car, Truck and Motorcycle are all subclasses of the superclass Vehicle. They all inherit common attributes from vehicle such as speed, colour etc. while they have different attributes also i.e Number of wheels in Car is 4 while in Motorcycle ...
Read MorePartial Dependency in DBMS
What is Partial Dependency?Partial Dependency occurs when a non-prime attribute is functionally dependent on part of a candidate key.The 2nd Normal Form (2NF) eliminates the Partial Dependency.Let us see an example −ExampleStudentIDProjectNoStudentNameProjectNameS01199KatieGeo LocationS02120OllieCluster ExplorationIn the above table, we have partial dependency; let us see how −The prime key attributes are StudentID and ProjectNo, andStudentID = Unique ID of the studentStudentName = Name of the studentProjectNo = Unique ID of the projectProjectName = Name of the projectAs stated, the non-prime attributes i.e. StudentName and ProjectName should be functionally dependent on part of a candidate key, to be Partial Dependent.The StudentName can be determined by StudentID, which makes the relation ...
Read MoreCentralized Database Management System
A centralized database is stored at a single location such as a mainframe computer. It is maintained and modified from that location only and usually accessed using an internet connection such as a LAN or WAN. The centralized database is used by organisations such as colleges, companies, banks etc.As can be seen from the above diagram, all the information for the organisation is stored in a single database. This database is known as the centralized database.AdvantagesSome advantages of Centralized Database Management System are −The data integrity is maximised as the whole database is stored at a single physical location. This ...
Read MoreOverview of Packages in Oracle
Packages are SQL procedures, functions, variables, statements etc. that are grouped into a single unit. Many different applications can share the contents of a package, as it is stored in the database.Parts of a PackageThe following are the parts of a package in Oracle −Package SpecificationThe package specifications contains information about all the procedures, functions, variables, constants etc. stored inside it. It has the declaration of all the components but not the code.All the objects that are in the specification are known as public objects. If there is any object that is not available in the specification but is coded ...
Read MoreMobile Databases
Mobile databases are separate from the main database and can easily be transported to various places. Even though they are not connected to the main database, they can still communicate with the database to share and exchange data.The mobile database includes the following components −The main system database that stores all the data and is linked to the mobile database.The mobile database that allows users to view information even while on the move. It shares information with the main database.The device that uses the mobile database to access data. This device can be a mobile phone, laptop etc.A communication link ...
Read MoreMultidimensional Databases
Multidimensional databases are used mostly for OLAP (online analytical processing) and data warehousing. They can be used to show multiple dimensions of data to users .A multidimensional database is created from multiple relational databases. While relational databases allow users to access data in the form of queries, the multidimensional databases allow users to ask analytical questions related to business or market trends.The multidimensional databases uses MOLAP (multidimensional online analytical processing) to access its data. They allow the users to quickly get answers to their requests by generating and analysing the data rather quickly.The data in multidimensional databases is stored in ...
Read MoreObject based Data Models
In object based data models, the focus is on how data is represented. The data is divided into multiple entities each of which have some defining characteristics. Moreover, these data entities are connected with each other through some relationships.So, in object based data models the entities are based on real world models, and how the data is in real life. There is not as much concern over what the data is as compared to how it is visualised and connected.Some examples of object based data models areEntity Relationship Data ModelObject Oriented Data ModelSemantic Data ModelFunctional Data ModelOut of these models, ...
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