Description: DML, or Data Manipulation Language, is a subset of SQL (Structured Query Language) used to manage and manipulate data in databases. Its primary function is to allow users to perform operations such as inserting, updating, deleting, and querying data stored in database management systems (DBMS). DML focuses on direct interaction with data, unlike other languages that may be more oriented towards defining the database structure. DML statements are fundamental for the operation of applications that require access to and modification of data, and they are widely used in various types of database environments, including relational databases and NoSQL systems. DML operations are essential for data management in any system that requires dynamic and efficient handling of information, making it a key component in software development and enterprise data management.
History: The concept of DML originated with the development of database management systems in the 1970s, when the use of SQL was formalized as a standard for data manipulation. As databases evolved, so did DML, adapting to new technologies and data storage paradigms, including both relational and NoSQL databases.
Uses: DML is primarily used to perform data manipulation operations in databases, allowing users to insert new records, update existing information, delete obsolete data, and query specific information. It is fundamental in business applications, data analysis, and software development.
Examples: An example of DML usage is an SQL query that inserts a new record into a customer table, or a statement that updates the price of a product in an inventory database. DML commands can be used to modify data in tables across various database systems, managing large volumes of data efficiently.
