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Asked: 2026-05-14T18:51:10+00:00

I’ve been thinking about using SQLite for my next project, but I’m concerned that

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I’ve been thinking about using SQLite for my next project, but I’m concerned that it seems to lack proper datetime and bit data types.

If I use DbLinq (or some other ORM) to generate C# classes, will the data types of the properties be “dumbed down”? Will date-time data be placed in properties of type string or double? Will boolean data be placed in properties of type int?

If yes, what are the implications? I’m envisioning a scenario where I need to write a whole second layer of classes with more specific data types and do a bunch of transformations and casts, but maybe it’s not as bad as I fear. If you have any experience with this or a similar scenario, how did you handle it?

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  1. Editorial Team

    SQLite itself recognizes only five data types: NULL, INTEGER, REAL, TEXT, and BLOB. But it lets you declare any type name that you want, so you can write

    CREATE TABLE SomeTable (
   TimeAdded DATETIME,
   SomeFlag  BOOLEAN
);

    and have your ORM interpret the types the way you want to.

    I’ve written a C++ wrapper around SQLite, and took the different approach of representing all database values with a variant type. This variant provides conversions between different types, so SqlValue("2010-05-03 01:01:04").AsTimestamp() gives the expected timestamp object.

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