ULID, or Universally Unique Lexicographically Sortable Identifier, offers a compelling alternative to the traditional UUID for generating unique IDs in applications. While UUIDs are widely used, they come with limitations such as inefficiency in character usage, lack of human readability, and issues with database performance due to their random nature. In contrast, ULIDs are designed to be lexicographically sortable, which is crucial for database indexing. This makes them particularly useful in Go applications that interact with PostgreSQL, allowing for efficient sorting and insertion of records. ULIDs consist of 128 bits: 48 bits for a timestamp and 80 bits for cryptographically secure randomness. This structure not only maintains uniqueness but also allows for chronological sorting. The article provides a practical example using Go with the pgx driver and the oklog/ulid package, demonstrating how developers can seamlessly integrate ULIDs into existing systems without altering database schema types. The code shows how to create a table and insert records using both UUIDs and ULIDs, highlighting the ease of use and the benefits ULIDs bring in maintaining order during data insertion. One significant advantage of ULIDs is their shorter and cleaner representation, making them suitable for URLs. They can generate about 1.21e+24 unique identifiers per millisecond, a capacity that meets the needs of most applications. However, ULIDs do have potential drawbacks in extremely high-volume write scenarios, where clustering around the current timestamp could lead to performance bottlenecks. The upcoming UUID v7 standard aims to address some of the issues seen in older UUID versions by adopting a time-ordered structure similar to ULIDs, highlighting ongoing developments in unique identifier standards.