OO4O, BLOB, AddNew and "Row must be locked" -
12-23-2005
, 03:01 AM
Hi there,
I have no success with inserting a BLOB into a new record. I always get
the message "Row must be locked for this operation". My code:
create table TEST (
MYBLOB blob default empty_blob()
);
Dim objOraSession As OraSession
Dim objOraDatabase As OraDatabase
Dim objOraDynaset As OraDynaset
Dim objOraField As OraField
Dim objOraBlob As OraBlob
Set objOraSession = New OraSessionClass
Set objOraDatabase = objOraSession.OpenDatabase("database",
"user/password", 2)
Set objOraDynaset = objOraDatabase.CreateDynaset("SELECT * FROM
test", 2)
Set objOraField = objOraDynaset.Fields("myblob")
Set objOraBlob = objOraField.value
objOraDatabase.BeginTrans
objOraDynaset.AddNew
objOraBlob.CopyFromFile "d:\test.txt"
objOraDynaset.Update
objOraDatabase.CommitTrans
When I first save the record and then use objOraDynset.Edit the
operation succeeds. But I can't use this design in my application, I
need to do all in one transaction, and the new record is only usable
after commiting the transaction. Otherwise I will not be able to
rolback the whole changes.
So is there no way to lock a row when I use AddNew or is there another
possibilty to do this?
Many thanks for your help
Wiwo |