Does the order of fields in a database matter?

The order of fields in a database usually does not matter from a logical and query operation perspective, as fields are accessed by name. However, the order of fields can affect performance and storage size, especially in some DBMSs where the column order influences data alignment and packing.

For example, in some cases, the correct order of fields can reduce fragmentation and increase read speed. But from a functionality and correctness standpoint, the order of fields is not critical.