Computers & Internet

XML vs JSON

XML stands for Extensible Markup Language. It can be considered as a simplified version of the Standard Generalized Markup Language. It is a text based markup language and a World Wide Web Consortium standard...

Difference between Varchar and Varchar2

Varchar and Varchar2 are two data-types in Oracle. They are used to store strings. Varchar2 can store a variable- length character string with an upper limit of 4000 bytes. Varchar is same as Varchar2. However...

Difference between Inner Join and Outer Join

Joins in SQL are performed to combine the data of two different tables. An Inner Join is a condition, that results the rows, which satisfy the ‘where’ clause in “all the tables”; whereas an Outer Join is a...

Difference between Ultrabook and Laptop

An Ultrabook is a sleek version of a laptop and can be categorized under the sub-notebooks. A laptop must meet the specifications defined by Intel in order to be called as an Ultrabook. A laptop is a portable...

Difference between Vector and ArrayList

Vector and ArrayList are both classes from java collection package. Vector is used to implement a dynamic array which grows automatically as per need basis. Like Vector, ArrayList is also an implementation of...