Networking programs are now bigger and more flexible. The basic system of operations consists mostly of a combination of scripts to manage database control.

Due to the variety of languages ​​and existing databases, the "conversation" between each other is often complicated and fortunately the presence of standards that allow the widespread use of standard procedures to ease this confusing task.

This is what a structured query language (SQL) can be but an international standard communication language between databases. Therefore, Structured Query Language (SQL) is a truly standardized language that allows us to implement any language, such as ASP or PHP, with any special database. MySQL, SQL Server, MS Access.

SQL was manufactured by IBM in the 1970s, initially SEQUEL (Structural English Language Tutorial). Years later, Microsoft and Oracle began to use SEQUEL. Its global recognition and use increased, and the SEQUEL term changed. In 1986, the term SEQUEL was standardized by the American National Standards Institute (ANSI) for SQL. In other words, the word was "English" in the world.

To date, there are many users who do not refer to SQL, these people, SEQUEL will certainly be the appropriate international standardized name database language. SQL was also revised in 1989 and later in 1992 (SQL-92). Since then, SQL has gone through several revision to improve its standardization.

SQL is certainly an international standardized language, but this does not mean that it is similar to each database. Believe it or not, some databases perform functions that do not always run in others. This is the reason why any company that delivers database products, such as Microsoft and Oracle, has its own certification process that ensures that those who take the certification test are well prepared and understand each SQL model differences. Their knowledge focuses primarily on the specific version of SQL.

SQL is not simply relevant because it can standardize into another, confusing language, and has two other unique attributes. On the one hand, it is really extremely flexible and powerful. On the other hand, it is very accessible, which makes the master easier.

There are many database products that support SQL, but two of the largest and most common are Microsoft SQL Server and Oracle database.

The company offering database products has its own way to become an "expert". For example, Microsoft offers several certificates to ensure that all Microsoft SQL Certified meets the criteria. Oracle does the same with the certification process.

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