Originally posted by: Ryan
Hello!
when I use ODBC in my work thread.There is a fetal debug
error.That is error in 0x80000003(0x77f9f9df).I have use
CString objects as gobal variant.Can I use it in work
thread.And open define a CRecordSet object in work thread
and then open it!But I'm very puzzle for this fetal error!
Can u help me?
Thank you very much!
Originally posted by: Andrew Barham
I've got an app that updates an Oracle table with data from an Access DB. But I can't seem to set the date fields in the CRecordSet to NULL.
I'm using VC++ 6.0 so i've changed my CTimes to COleDateTimes and then used SetStatus to set them to null. But when this updates the oracle DB it just puts in the previously set item for this field instead of a NULL. I've also tried seting the status to invalid but his just puts a garbage date field in.
Any ideas where i'm going wrong???
Cheers.
ReplyOriginally posted by: PeterK
Check this article out for improving MS Access speed.
Reply
Originally posted by: nizam
Your information was very interesting . It will definetly help me in my codeing.
I have one problem which i want to discuss with you. Is it possible to store contents of INI/TXT files to my database (access) as memo fields and retreive them back . Is so plese help me out. And is there any size to the memo fields.
Originally posted by: Mike Stoodley
RE point 9. Access does not use 0xFF as the null value. That is used by VC++. That is because there is no data base NULL equivilent in c++. All the field types use valid values for a null field - they must - and are at the upper end ie INT_MAX, LONG_MAX etc.
If NULL fields are an issue, and they usually are, ALWAYS check for IsFieldNull before using the field, you cannot always assume that the field contains valid data.
Reply