SQL fully abbreviated as Structured Query Language can be defined as a domain-specific language used to manage the relational databases and performs different operations on the data stored in them. SQL is used as their standard database language by all the relational database management systems like Oracle, Informix, Posgres, SQL server, MySQL, MS Access, and Sybase.
Also See: Characteristics of Database Approach
What is SQL, its Applications, Advantages and Disadvantages?
History about SQL
In the 1970s, SQL was developed by the Raymond FF. Boyce and Donald D. Chamberline at IBM with the name of SEQUEL. It was designed for manipulating and retrieving data stored in the original quasi-relational database management system of IBM. However, the first commercial implementation of SQL was introduced in June 1979 by Relational Software for VAX computers.
Applications of SQL (Structured Query Language)
Have a look at some main SQL applications:
- Data Integration Scripts
The main application of SQL is to write data integration scripts by the database administrators and developers.
- Analytical Queries
The data analysts use structured query language for setting and running analytical queries on a regular basis.
- Retrieve Information
Another popular application of this language is to retrieve the subsets of information within a database for analytics applications and transaction processing. The most commonly used SQL elements are select, insert, update, add, delete, create, truncate and alter.
- Other Important Applications
The SQL is used for modification of the index structures and database table. Additionally, the users can add, update and delete the rows of the data by using this language.
Advantages of SQL
There are numerous advantages of Structured Query Language and some of them are mentioned below:
- No coding needed
It is very easy to manage the database systems without any need to write the substantial amount of code by using the standard SQL.
- Well defined standards
Long established are used by the SQL databases that is being used by ISO and ANSI. There are no standards adhered by the non-SQL databases.
SQL can be used in the program in PCs, servers, laptops, and even some of the mobile phones.
- Interactive Language
This domain language can be used for communicating with the databases and receive answers to the complex questions in seconds.
- Multiple data views
With the help of SQL language, the users can make different views of database structure and databases for the different users.
Also See: Explain Data Definition Languages
Disadvantages of SQL
Along with some benefits, the Structured query language also has some certain disadvantages:
- Difficult Interface
SQL has a complex interface that makes it difficult for some users to access it.
- Partial Control
The programmers who use SQL doesn’t have a full control over the database because of the hidden business rules.
Some of the databases go to the proprietary extensions to standard SQL for ensuring the vendor lock-in.
The operating cost of some SQL versions makes it difficult for some programmers to access it.
Over the years, SQL has become one of the most widely used database languages in the world. It has become a standard for the International Organization for Standardization and American National Stands Institute.