META Data is very important to a computer programmer. It is necessary in order to maintain control and organization of different data elements.
Meta data holds information regarding an webpage's title, related keywords, and a description. Few search engines place importance on meta data and Google places no importance, whatsoever, on meta data. However, properly using meta data CAN be helpful for search engine optimization. Furthermore, misusing meta data can have harmful effects, so it is important to learn what is and isn't acceptable to search engines when it comes to meta data. Keywords are an important part of meta data, so it is important to optimized meta keywords according to what lengths search engines allow in order to avoid "keyword stuffing."
Metada data is data that describes other data.
Meta data, overall, can hold a huge amount of information about a website. However, the three most important types of meta data are: Meta keywords (the keywords that describe what a page is about) Meta Title (the page's title) Meta Description (a full, but short description of a webpage.)
The terms "meta data" and "metadata" are often used interchangeably, but technically "meta data" refers to data about data, while "metadata" specifically refers to structured information that describes, explains, or provides context for other data.
meta data
Meta data is a just information of object which are existing with in the database.the data about the data called Meta data.meta data contained the information with in the database.
Meta data is data that describes how and when and by whom a particular set of data was collected at that time. It is also stated that it is essential for understanding information stored in certain data warehouses.
Data dictionary is a set of meta-data which contains the definition and representation of data elements.It gives a single point of reference of data repository of an organization.Data dictionary lists all data elements but does not say anything about relationships between data elements.
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meta data can be define as the data about data....data is the known facts which can be recorded and altered...and the info. about the data is called meta data...example :-Suppose in a student table student name,age,sex,class,subject,stream all are the data of the student table and the data about these data(name,age,sex, etc...) like what type of data whether it is a integer or string or char and what is the range like age should be with in o-20 like the all are called Meta Data.......
Meta tag is the one that stores the meta-data about the HTML file. It contains the characteristics of the characters to be used.