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TIL that SQLite has only five data types (lemmy.dbzer0.com)

submitted 9 months ago by baitsmithy@lemmy.dbzer0.com to c/todayilearned@lemmy.ml

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Learned this from a friend. The types are null, integer, real, text, and blob. My friend describes them thusly:

Null stores nothing, but like, actively nothing, as opposed to the absence of a thing.
Integer is a signed integer, up to 8 bytes.
Real is always an 8-byte float.
Text is an arbitrary-length UTF-8 or UTF-16.
Blob is an arbitrary-length anything-else. But I hope you remembered what you put there. Because it sure isn't gonna tell you. Oh, and it doesn't have strong typing, so if you ask for it back as an integer, it'll quite happily give you it back as an integer, especially if that doesn't make sense!

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[–] bionicjoey@lemmy.ca 20 points 9 months ago* (last edited 9 months ago)

IMO this is fine. The whole point of sqlite is to be as lightweight as possible. It doesn't need the bloat introduced by any other types. Blobs + data serialization in the client library will be good enough for most other cases.