Post by nelsonelias on Feb 22, 2024 11:03:03 GMT 1
Why use SQL? With SQL , users seem to be able to exploit many benefits. Here are some advantages of SQL: Data is everywhere : Data appears everywhere on the screen from your laptop to your phone. Studying and understanding SQL will help you understand how this data works. Add, edit, read and delete data easily : with SQL, data processing operations become easier than ever. You only need to perform some simple data operations on SQL instead of having to use many complex commands in other languages. SQL makes programming easier : you can store a lot of data for many different applications in the same database, and accessing these databases becomes simpler thanks to the same method. together. Used and supported by many large companies : all major technology companies in the world today such as Microsoft, IBM, Oracle.
All support the development of SQL language. More than 40 years of history : with a development history of more than 40 years since 1970, SQL still exists and stands strong today. This shows that SQL's current position is very difficult to be replaced by any other computer language. What are the disadvantages of SQL? What is SQL? Some SQL versions require quite high operating costs, making it difficult for British Student Phone Number List programmers Some SQL versions require quite high operating costs, making it difficult for programmers Although it is a commonly used language, no language is perfect. Therefore, SQL also has some limitations below: Difficult interface: SQL has a complex interface that makes it difficult for some users to access. Not having full control: Programmers using SQL do not have full control over the database.
Implementation: Most SQL database programs have their own proprietary extensions. Price: The operating costs of some SQL versions are quite high, making it difficult for some programmers to access. Classification of SQL statements SQL has three common groups of commands SQL has three common groups of commands What is SQL DDL (Data Definition Language)? DDL is a data definition language. DDL commands include: CREATE command : Creates a table, a view of a table, or another object in the database. ALTER command : Modify an existing Database object, such as a table. DROP command : Delete an entire table, a View of a table or another object in a Database.
All support the development of SQL language. More than 40 years of history : with a development history of more than 40 years since 1970, SQL still exists and stands strong today. This shows that SQL's current position is very difficult to be replaced by any other computer language. What are the disadvantages of SQL? What is SQL? Some SQL versions require quite high operating costs, making it difficult for British Student Phone Number List programmers Some SQL versions require quite high operating costs, making it difficult for programmers Although it is a commonly used language, no language is perfect. Therefore, SQL also has some limitations below: Difficult interface: SQL has a complex interface that makes it difficult for some users to access. Not having full control: Programmers using SQL do not have full control over the database.
Implementation: Most SQL database programs have their own proprietary extensions. Price: The operating costs of some SQL versions are quite high, making it difficult for some programmers to access. Classification of SQL statements SQL has three common groups of commands SQL has three common groups of commands What is SQL DDL (Data Definition Language)? DDL is a data definition language. DDL commands include: CREATE command : Creates a table, a view of a table, or another object in the database. ALTER command : Modify an existing Database object, such as a table. DROP command : Delete an entire table, a View of a table or another object in a Database.