Re: Prepared Statements
От | Dmitry Tkach |
---|---|
Тема | Re: Prepared Statements |
Дата | |
Msg-id | 3F1C0355.6090709@openratings.com обсуждение исходный текст |
Ответ на | Re: Prepared Statements (Csaba Nagy <nagy@ecircle-ag.com>) |
Список | pgsql-jdbc |
> > >But please... did you ever use a different database than Postgres ? The >way you're passing the parameters is VERY much postgres specific, >furthermore, it relies on some non-standard behavior... > > Yes. That's what I meant below - 'the lesser of two evils' > > >>I am just choosing the lesser of two evils. >>At least, I don't need to know what database I am going to be working >>with when I compile the code. >> >> > >... which problem you wouldn't have if you would use standard JDBC code. > True. I would not have this problem then. I would have another problem - just no way to pass a set or array in whatsoever.... :-) I know a better way to not have problems - if I just didn't do anything at all, I would not have any. :-) >I agree that standards suck sometime, but then if you want to use a DB >specific feature, I can't see why not make it a compile time necessity - >it might be a further benefit to remind you that your code will not work >with other databases. > I explained the reason for not making it a 'compile time necessity' earlier - there is no way whatsoever I can have all possible jdbc drivers in the world available to me at compile time. >But yes you force your customers to use Postgres, or maybe to a set of >databases which accept this hack - it is not standard. > > I don't force them to use Postgres. I do have the driver-specific logic that uses the correct way to pass in the parameters depending on the driver. The difference is that this is *run-time* logic, not *compilation-time*. > > >>With your suggestion, the only way I can have the above is to pack all >>the possible jdbc drivers into every build of the app... >> >> > >Yes, all the drivers which you are using special features from. That >makes perfect sense - those are vendor specific dependencies in your >code, the library will remind you about it all the time so you don't >forget to tell the customers about it ;-) > > It doesn't matter really if it makes sense or not (to me, it doesn't anyway). It is just not possible to do. I simply do not have all the drivers in the world available to me. Even if I did, I can't begin to imagine what my customers would tell when they finish laughing after receiving an app from me, with all the possible drivers built in :-) As for not forgetting to tell the customers about it - that's the whole idea - I am *not* telling the customers about it, they don't want to know that, and don't need to care. Dima
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