abstract method called when using TSQLQuery
lazarus / 10-Designer

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belajardelphi · 2006-02-06 23:35

I'm using Suse 9.3 I think i can install Lazarus and fpc (no error)

but when running demo try...(using component sqldb) error
occured..abstract method called..

if  i make active=true on TSQlQuery error occured too: Abstract Method
called

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matthijs · 2006-02-07 13:51

What demo are you running? Which version of Lazarus / FPC did you
install?

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Anonymous · 2006-02-10 06:43

thanks for reply

I use
fpc-2.0.1-050923.i386.rpm
fpc-src-2.0.1-050923.i386.rpm
lazarus-0.9.10-0.i386.rpm
I'm running demo mysql_demo_20050408.tar.gz(from lazarus wiki)
I install mysql 4.0.X.X (and mysql library and devel, i remove mysql
4.1.x.x first from suse 9.3) from suse 9.0 because sql db not work
with mysql4.1.x.x,
And again i install fpc and lazarus sucsessfully (no error) on my Suse
9.3.
It work fine when I use free passcal to connect to mysql 4.0 and do
query....
Thanks!

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matthijs · 2006-02-10 16:37

Could you try it with lazarus-0.9.12? I wrote that page and the
example project and did not encounter any problems. However the
documentation is maybe a bit outdated (so soon!?!?  ), but the latest
sqldb-package contains connection components for MySQL 4.0, 4.1 and
5.0.

Note to self: Update page and create new demo project.

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Anonymous · 2006-02-10 23:13

Ok , I will try I'm downloading lazarus-0.9.12 right now...I will post
the result

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Anonymous · 2006-02-14 05:55

Im already installed fpc 2.0.2 and lazarus 0.9.12 sucsessfully. But
there is error when I log in the demo program (using sqldb) something
like 'access violation' or "connection failed"

I can't change active property from SQLTransaction to true, everytaime
i change to true i'ts otomatically change to false ( no message
error).

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matthijs · 2006-02-14 08:57

The access violation occurs when you open a TSQLQuery and there is no
connection with the database.
When you can not set the SQLTransaction to active, the connection can
not be made. Most propably due to wrong credentials. (userid,
password)