A trigger is bunch of code that get executed on occurrence of a specific event.The event can be like the data getting changed in a row or column.
Q2 . What are procedures in databases?
SOLUTION
A set of PL/SQL that can be executed and can be executed by invoking using its name.
Q3 . What is a waterfall model for SDLC?
SOLUTION
Waterfall model is a sequential software development model .In which the steps are as follows
>Requirements
>Design
>Implementation
>Testing
>Maintenance
Q4 . What is a spiral model of software development?
SOLUTION
It is an iterative way of development in which the code is divided into smaller sized incremental deliverables that ger iteratively delivered over period of time in the following phases
>Identifying Requirements
>Design
>Build or Develop
>Test or Ev
Q5 . What is an Agile model and why is it being used extensively?
SOLUTION
Agile methods has iterative and incremental traits.In Agile there is no hard and fast way but to change according to the requirements from Customer end
Q6 . What is Big Data?
SOLUTION
In this world of exponential increase in data.We have to handle large amounts of data by handling them by storing them in data warehouses and analysing them using BI(Business Inteligence) or Data Analytics and get meaningful data as report for effici
Q7 . What is BOOTSTRAP?
SOLUTION
It is a HTML,CSS,JAVA Script framework developed by twitter
It is now available as opensource
It is a mobile friendly frame work of web design and implementation
Q8 . What is a JDK?
SOLUTION
It is Java Development Kit which is an environment to develop java applications.
Q9 . What is a JRE?
SOLUTION
It stands for Java Runtime Environment.It Is a set of tools to develop java applications like Java Virtual Machine and libraries
Q10 . What is the difference between Linux and Unix?
SOLUTION
>Linux is an open source operating system that can be used in PCs
> Unix comes in different flavors to be used by mainframe systems,some vendors are IBM AIX etc