Full form of SQL

The full form of SQL is "Structured Query Language". SQL is a program created and formulated in a relational database management system for working with structured data. It was originally named SEQUEL (Structured English Query Language developed add-on). Eventually the name changed to SQL.

History of SQL

  • SQL developed based on relational algebra and tuple-relational calculus.
  • In the early 1970s, SQL was developed and produced by Donald D. Chamberlin and Raymond F. Boyce at IBM.
  • It was designed to run and retrieve information in IBM's existing quasi-relational database management system.

Application

  • When gathering details and working on analytical queries.
  • When building data integration scripts.
  • Modifying the database table and tag designs.

Benefits

  • It is not necessary to use standard SQL to write a significant amount of code, which makes managing data structures easier.
  • The SQL databases used by ISO and ANSI use guidelines that are well described and long established.
  • SQL can be found in operating systems, laptops, servers, and even a few smartphones inside software.
  • SQL is an interactive domain language that can be used to share or exchange information with databases and solve complex questions in seconds.
  • The SQL language helps users create multiple views of the database structure and the database for different people.

Limitations

  • SQL has a complex interface, which makes it difficult for some people to access.
  • In SQL, programmers using SQL do not have complete control over the database because of invisible business rules.
  • Many databases are moving from proprietary enhancements to standard SQL to ensure vendor lock-in.
  • The operational costs of some SQL models are so high that some programmers have trouble getting into them.

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