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I’ve just started a new work and I’ve got to manage, maintain (and feel sorry for) MS-Access databases and application.
I must normalize, then batch-copy a DB from the original files to the new model. But when “Select Cas-ing” the read data-types, I’m offered two choices for each and every data-type; dbDouble and DB_DOUBLE, dbDecimal and DB_DECIMAL, etc.
Anyone knows why the two?
Thanks for feeding my curiosity!
DB_* are deprecated constants that are part of the Access object model and are provided only for backward compatibility. dbDouble and others are part of the DAO object model:
I’m guessing that most (all?) constants will be the same, but you should confirm that yourself either via the Object Browser (F2 in the IDE) or the immediate window (Ctrl + G).
In any case, I would stick with the DAO constants because the others are deprecated.