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Add code SQL in the class method
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Author
Topic: Add code SQL in the class method (Read 511 times)
carlos_am_2003
Newbie
Posts: 3
Add code SQL in the class method
«
on:
November 21, 2022, 01:15:49 pm »
Hello!
I have a class, for example, TCar and I need to save the data of the class TCar to any database.
Code: Pascal
[Select]
[+]
[-]
TCar
=
class
private
name
:
string
;
year
:
integer
;
end
How can I add code to save an object TCar in the database?
Code: Pascal
[Select]
[+]
[-]
TCar
=
class
private
name
:
string
;
year
:
integer
;
procedude SQL_InsertOrUpdate
;
procedude SQL_Delete
;
end
OR
Code: Pascal
[Select]
[+]
[-]
TCar
=
class
private
name
:
string
;
year
:
integer
;
end
;
TSQL_Car
=
class
procedure
SQL_InsertOrUpdate
(
car
:
TCar
)
;
procedude SQL_Delete
(
car
:
TCar
)
;
What do you think?
Help me!
Logged
Zvoni
Hero Member
Posts: 2330
Re: Add code SQL in the class method
«
Reply #1 on:
November 21, 2022, 02:30:57 pm »
Do you have code using SQL at all? That's not in a class? that works?
Because right now, i don't get it, what the problem is
Logged
One System to rule them all, One Code to find them,
One IDE to bring them all, and to the Framework bind them,
in the Land of Redmond, where the Windows lie
---------------------------------------------------------------------
Code is like a joke: If you have to explain it, it's bad
MarkMLl
Hero Member
Posts: 6692
Re: Add code SQL in the class method
«
Reply #2 on:
November 21, 2022, 02:50:23 pm »
I think he's looking for a way to serialise an instance into a table.
Deserialisation costs extra :-)
MarkMLl
Logged
MT+86 & Turbo Pascal v1 on CCP/M-86, multitasking with LAN & graphics in 128Kb.
Pet hate: people who boast about the size and sophistication of their computer.
GitHub repositories:
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carlos_am_2003
Newbie
Posts: 3
Re: Add code SQL in the class method
«
Reply #3 on:
November 21, 2022, 03:12:16 pm »
Hi!
I would just like an opinion on the best way to go about it.
Logged
Zvoni
Hero Member
Posts: 2330
Re: Add code SQL in the class method
«
Reply #4 on:
November 21, 2022, 03:15:54 pm »
How about reading the documentation?
https://wiki.freepascal.org/SQLdb_Programming_Reference
I'd start with "How to set up the SQL-Trinity" (Connection-, Transaction-, Query-Objects)
Logged
One System to rule them all, One Code to find them,
One IDE to bring them all, and to the Framework bind them,
in the Land of Redmond, where the Windows lie
---------------------------------------------------------------------
Code is like a joke: If you have to explain it, it's bad
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