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OrbWorks Community Forum • View topic - Question on data type...

Question on data type...

Discuss PocketC for Palm OS (including Desktop Edition)

Postby tclarke on Sat Apr 14, 2001 2:35 pm

I create a data base consisting of 10 2-byte fields (using dbwritex... with i2).
If I write into the first field an integer 0, how do I know that the first field has
a) integer 0 in it, or
b)it has had nothing put into it (i.e., still in it's virgin form from when first initialized), or
c) that has been cleared via a dberase()?

Tom
Tom
tclarke
 
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Location: USA

Postby wossname on Sun Apr 15, 2001 8:42 am

Perhaps, if your design permits, you could add another field (char for preference) and whenever you put data into that record, set that new "flag" to 'Y' or something.

Char is the smallest datatype, so it shouldnt inflate your DB size too much.

Wossname :)
Wossname :)
Are you <i>local</i>?
wossname
 
Posts: 275
Joined: Sat Feb 24, 2001 7:18 am

Postby tclarke on Sun Apr 15, 2001 1:55 pm

Ahhh, even better, I could make that character field store the position of the next available field within the record...

Thanks...

Tom
Tom
tclarke
 
Posts: 42
Joined: Wed Dec 13, 2000 11:03 am
Location: USA


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