In today’s world data is everything but to manage it one has to master the art of data management.
To play with the data and database we need to know the language that is understood by these databases and that language is SQL.
SQL is a core of relational type databases because of its huge popularity it is used by most companies today worldwide.
SQL is an abbreviation for Structured Query language. It is the language used to perform actions such as update, retrieve, manipulate and store data on a relational database.
Now that we have learned what exactly SQL is, let’s see some of its interesting facts.
Do you know when SQL was born, well let me answer that question for you SQL was developed at IBM by Donald D Chamberlin and Raymond EV in the year 1970. It was initially called as Sequel that is a Structured English Query language but later it was changed to SQL because the sequel was a trademark of a UK-based engineering company.
SQL is said to be a powerful language, the reason for that is it uses very simple English sentences and also uses very few lines of code.
It uses common words such as Select, Insert, Update, etc to perform its core functionalities.
SQL is known to be a declarative language i.e when you write a query you have to describe what needs to be done and you don’t have to worry regarding the flow of the query, it will be handled internally by the DBMS that you’re using.
Features of SQL
- SQL has well-defined standards.
The developers of SQL have very well mentioned how exactly each query has to be written there is no room for ambiguity when it comes to writing your query. The standards need to be followed.
- SQL is easy to learn.
SQL is a language that is used to work with the database, since SQL has a large user base as well as well-defined standards, for a beginner, it is really easy to learn it.
- Multiple views.
This is one of the unique features that SQL came up with. A View is nothing but creating a virtual table a virtual table is a temporary table for certain use by doing this we can protect the integrity of the data.
- SQL queries are portable
we can execute the SQL query in one system and execute the same query in another system with few changes.