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Indexes In Sql
Index in SQL can be thought of as index of a book. Suppose, We have a book of 50 pages and we don't have indexes. Now if we have to navigate to a random topic then we have to start with first page and then second and so on, No problem here we...
Configuration files for AngularJS 2
Hello Everyone.
Here,We will be going through a series of tutorials which aims at providing a basic understanding of AngularJS 2 framework. At its best,it will make you quite acquainted with the fundamentals of AngularJS 2.
This is the firs...
What are Mysql Indexes
A database index is a structure that improves the speed of retrieval of data from our table. Index is similar to the index of a book. If you want to find a chapter you look in the index first without scanning the whole page. Users cannot see th...
How to delete an INDEX in a table in MySQL?
We can drop INDEX from table by using DROP INDEX statement, it is used to delete an index form a table.
Syntax:
ALTER TABLE table_name DROP INDEX index_name;
Example: Suppose you have created an INDEX named "person_user_name_idx" on th...
Indexing
The index is used to search the data in a table.
The index is basically a data structure that search our data.
It is applied usually on a column of a table.
It is usually a B-tree but can also be hash table and other depending upon the ...