• on in NoSQL

    SQL is the abbreviation to Structured Query Language. It is a language widely used to create and manage DataBase Management Systems or DBMS. The use of SQL is a sequel to the relational model databases emerged in the 70’s. SQL databases are essentially relational model databases and they have a relationship between the data. The […]...

    [ Click to Continue ]
  • on in Uncategorized

    Before going in detail about types of indexes in MongoDB let’s talk a little about what indexes does in your database and how it help you to speed up your database search queries. When we create index on table field what actually does is create meta data on that field of a table and point […]...

    [ Click to Continue ]
  • on in Uncategorized

    If you come from the world of relation database then you certainly know that the best way to keep your data and design your scheme is to keep them in third normal form 3NF, you can keep your MongoDB also in the third normal form but in Mongo the best way for your scheme is […]...

    [ Click to Continue ]
  • on in NoSQL

    To get this straight I would like to mention that NoSQL specifically MongoDB is not only a key/value store but it provide more value than only a key value store database, but it’s not a RDBMS either, I have not worked with MongoDB in production with huge data but I have used it with quite […]...

    [ Click to Continue ]
  • on in SAP

    In order for you to understand how column and row store works in SAP HANA we need to know what Column and Row store is? and for start the best way would be to show you illustration of this in a picture bellow then I will go head and discuss this further in this article, […]...

    [ Click to Continue ]
  • on in Uncategorized

    In MongoDB you must have ID for each collection you create and the data type that you can store in the ID field is limited only to arrays in other word you can use all kinds of data type including timestamp, integer, string and etc. But you cannot use array as your document id as […]...

    [ Click to Continue ]
  • on in Uncategorized

    In NoSQL databases world there is no tables instead you store your data in collections which is similar to normal relation database table they are not really a table in structure but if you compare it with relation database you can do so with tables, collection in mongo is kind of scope which defines and […]...

    [ Click to Continue ]
  • on in Uncategorized

    Your application always stores the data that is given to it by the user in the memory and then it stores that data to a storage medium device mainly the disk or other type of storage devices, and MongodDB uses memory mapped files as the server cannot stores all its information in the memory instead […]...

    [ Click to Continue ]
  • on in SAP

    SAP HANA is a new technology build by SAP to fill lack of speed some other database were lacking, SAP HANA is a in memory column-oriented, relational database management system which stores all the data in memory and give your business an online analytic process to speed up the calculation, HANA is an acronym for […]...

    [ Click to Continue ]
  • on in Uncategorized

    For demo purpose we are going to configure three servers primary, secondary and arbiter servers and we are going to do this in local computer for testing purpose only in real world you need separate servers or you can use virtual machine to use seprate virtual machines for each servers,open command line and paste the […]...

    [ Click to Continue ]

How data is stored in MongoDB

on

Your application always stores the data that is given to it by the user in the memory and then it stores that data to a storage medium device mainly the disk or other type of...

Read More

Difference between spring and Struts?

on

These words are buzz for java newbie programmer when you start to learn pure java with little research you get familiar with these new buzz words and you want to know exactly what it really...

Read More
on in Uncategorized

For demo purpose we are going to configure three servers primary, secondary and arbiter servers and we are going to do this in local computer for testing purpose only in real world you need separate servers or you can use virtual machine to use seprate virtual machines for each servers,open command line and paste the...

[ Click to Continue ]
on in NoSQL

In typical database environment we need to have back up of our database because if we don’t have if in any case our database goes down it will be disaster and typically we have our database back up in a timely interval and then once something goes wrong we restore our data from the latest...

[ Click to Continue ]
on in NoSQL

NoSQL database is broken down to 4 Major categories and in this article I would go briefly over types of them and what particular jobs of storing data they are doing and also I would like to mention some of the big names who fall under those 4 categories. Key-Value Stores: Key valued stores are...

[ Click to Continue ]
on in NoSQL

Let’s talk about NoSQL in the cloud and how many companies have their own flavor of NoSQL database, there is no doubt about that NoSQL and cloud co-existed for long time like if you think about scalability of the web that is happening around the “world wide web” it’s all mostly because of NoSQL and...

[ Click to Continue ]
on in Hadoop NoSQL

So let’s crack up this mystery that if there is No SQL in a database then how we can run our queries where there is no SQL, to understand how our queries works in NoSQL database I’m going to introduce to you a method that can make you understand this in very basic level broken...

[ Click to Continue ]