> SQLite does not support VARCHAR(2).  All fields declared like that are
> TEXT and SQLite pays no attention to the length of the text.  Declare them
> as TEXT.
> 
> SQLite does not support TINYINT   All fields declared like that are
> INTEGER.  Declare them as INTEGER.
> 
> Your TEXT NOT NULL fields should be declared as TEXT NOT NULL COLLATE
> NOCASE.  This will simplify your programming later. 

Understood.

> Why is this field
> 
>>  "idnum" TEXT NOT NULL CONSTRAINT "pk_student" PRIMARY KEY,
> 
> declared as TEXT when it has 'num' in the name ?
> 
> Although it will work, do not do this:
> 
>>  CONSTRAINT "pk_uniqueworkpiece" PRIMARY KEY ("student",
>> "workpiece_list")
> 
> instead allow that table to have
> 
>         INTEGER PRIMARY KEY AUTOINCREMENT
> 
> like your workpiecelist table, and declare a UNIQUE index to enforce
> uniqueness.  This allows you to make changes without having SQLite
> complain about duplication in the primary key. 

I will in the 'student' table allow an 'id' INTEGER PRIMARY KEY
AUTOINCREMENT .
Every student have an identification number and such a number is 13 digit
long. But some idnumber start with leading zero so I think to it is better
to have this filed as TEXT to keep those leading zeros at the beginning of
the 'idnum'. I do not want to do calculations with 'idnum' values.



-----
Best, Pál
--
Sent from: http://sqlite.1065341.n5.nabble.com/
_______________________________________________
sqlite-users mailing list
sqlite-users@mailinglists.sqlite.org
http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users

Reply via email to