It can be possible by using the DISTINCT keyword in SELECT clause. The DISTINCT applies to the combination of all data fields specified in SELECT clause.ExampleWe have the table ‘Student’ on which we have applied DISTINCT keyword as follows −mysql> Select * from student; +------+---------+---------+-----------+ | Id   | ... Read More

We can specify multiple columns in ORDER BY clause to get the sorted output based on those multiple columns. Following as an example to make this concept clearer −mysql> Select * from Student ORDER BY Name, Address; +------+---------+---------+-----------+ | Id   | Name    | Address | Subject   ... Read More

The speech-rate property specifies the speaking rate. Note that both absolute and relative keyword values are allowed.The possible values are -number − Specifies the speaking rate in words per minute.x-slow − Same as 80 words per minute.slow − Same as 120 words per minute.medium − Same as 180 - 200 words ... Read More

Mean is an average value of given set of numbers. It is calculated similarly to that of the average value. Adding all given number together and then dividing them by the total number of values produces mean.For Example Mean of 3, 5, 2, 7, 3 is (3 + 5 + 2 ... Read More

DEFAULT constraint is used set a default value for a column in MySQL table. If it is applied on a column then it will take the default value of not giving any value for that column. Its syntax would be as follows −SyntaxDEFAULT default_valueHere, default_value is the default value set ... Read More

Network StandardsNetworking standards define the rules for data communications that are needed for interoperability of networking technologies and processes. Standards help in creating and maintaining open markets and allow different vendors to compete on the basis of the quality of their products while being compatible with existing market products.During data ... Read More

International Standards are needed so that products and systems developed in different parts of the world are interoperable and compatible with each other. The standards aim to ease out the technical differences and also to ensure product safety.The most prominent organization that lays down international standards is the ISO (International ... Read More

X.25X.25 is a protocol suite defined by ITU-T for packet switched communications over WAN (Wide Area Network). It was originally designed for use in the 1970s and became very popular in 1980s. Presently, it is used for networks for ATMs and credit card verification. It allows multiple logical channels to ... Read More

Ethernet is a set of technologies and protocols that are used primarily in LANs. However, Ethernet can also be used in MANs and even WANs. It was first standardized in the 1980s as IEEE 802.3 standard. Since then, it has gone through four generations, as shown in the following chartStandard ... Read More

To print Narcissistic Numbers, let's first look at the definition of it. It is a number that is the sum of its own digits each raised to the power of the number of digits. For example, 1, 153, 370 are all Narcissistic numbers. You can print these numbers by running ... Read More