What is a marquee tag ?
In HTML it is used to create scrolling text or image in a webpage. It scrolls either from vertically top to bottom or bottom to top or horizontally left to…
Month: October 2022
40 posts
What is the datalist tag in HTML ?
In HTML <datalist> tag is used to provide autocomplete feature in the files. Users can easily fill the data in the forms using select the data because it is used…
How to Insert an Image in HTML ?
In HTML document we can use different fonts and lists. For look more attractive we can add more graphics to make the document. Web browsers support a number of graphic…
How to Align Text in HTML ?
By using markup language, HTML is used to design webpages. It defines the link between the webpages. It defines the structure of webpages where markup language is used to define…
How do you add buttons in HTML ?
In HTML <button> tag is used to clickable button within form on your webpage. We can put content like image or text within the <button>to</button> tag. For <button> tag we should…
What are the different types of storage in HTML5 ?
In HTML5, web storage is one of the great features. In Web storage, web applications can locally store data within the browser on the client side. It is sometimes known…
What is Transaction in DBMS ?
If we need one or more database access operations, we have a logical unit of processing called Database Transaction. In simple, database transactions represent real-world events of any enterprise. Database…
Normal Forms in DBMS ?
There are 4 types of form in Normalization : First Normal Form(1NF) If a relation does not contain any multi valued attributes, then the relation is said to be in…
What are the types of databases ?
The different types of databases are: Hierarchical Database In this database data is organized in a tree like structure. Data is stored in the form of either top down or…
What is DBMS Queries ?
SQL Commands SQL commands are instruction which is used to communicate with the database. It is also used to perform specific tasks, functions, and queries of data It can also…
What is an XML Database in DBMS
For storing huge amount of data in xml format we use XML format. As XML is rapidly growing in every field, we need to have a secure place to store…
What is Relational Algebra in DBMS ?
A procedural query language which is used widely is known as Relational Algebra. Instances of relation are given as input data and we get output as occurrences of relations Relational…
What do you understand by Query Optimization ?
It is a phase which identifies a plan for evaluation query that has the least estimated cost. We can use query optimizer when there is lot of algorithms and methods…
Explain levels of abstraction in DBMS ?
There are 3 levels of abstraction in DBMS Physical Level It is the lowest level of data abstraction and is managed by DBMS. This level shows how the data is…
What is Hierarchical model in DBMS ?
Features of Hierarchical Model This model is based on the tree structure. This model contains a collection of records that are connected by each other by links. Tree structures that…
What is Join in DBMS and what are its types ?
DBMS join is a binary operation that allows combining join products and selecting in one single statement. If data needs to be retrieved from two or more tables, we can…
Difference Between malloc() and calloc()
calloc malloc We need to split and pass the memory we want We can pass how much memory we want. Ex: p=calloc(5,sizeof(int) Ex: p=malloc(5,sizeof(int) Function return void Functions Return void…
What is constant and variable in C ?
Constant A constant is a value or identifier whose value is fixed and does not change, in the entire program. Constant is similar to a variable but it can hold…
What is Dynamic data structure ?
We need a dynamic data structure to data efficiently into memory. Memory spaces in a program can be accessed using dynamic memory allocation. This is opposite to static data structure…
What are the types of data types in C ?
C language supports 3 data types: Primary Data Types User Defined Data Types Secondary Data Types Primary Data Types: Integer Float Char Double User Defined Data Types: Structure Union Enum…
