Description: A sequence is a database object that generates a sequence of unique numeric values, often used for primary keys. This concept is fundamental in database design, as it allows for the creation of unique identifiers for records, which is essential for maintaining data integrity and consistency. Sequences are particularly useful in systems where multiple simultaneous insertions are required, as they ensure that each new generated value is unique and does not cause conflicts. Additionally, sequences can be configured to automatically increment their values, simplifying the process of assigning identifiers. In the context of programming languages and frameworks, the concept of sequence extends to data structures that allow for efficient handling of collections of elements, facilitating operations such as iteration and data manipulation. In the field of bioinformatics, sequences can refer to DNA or protein chains, where each element has a specific meaning in the biological context. In summary, sequences are a versatile and essential tool across multiple technological and scientific disciplines.
