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LabSQL ADO slow on LV2010-64bit


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Hi

I've converted one application from LV2010-32 bit to 64 bit.

Everything works well, but my LabSQL ADO component is slow.

In my 32-bit LV application a DB-queryl takes 4ms but 1700ms in my 64-bit system, it still works but I can't accept this.

A run both LV32 and LV64 on the same computer next to eash other so it's not a computer issue.

Anybody seen this before?

post-941-0-29152300-1305153342_thumb.png

Cheers,

Mike

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  • 2 weeks later...

Hi again

I'm going to give this problem one more push to see if anybody has tried to use the Database ADO Active-X with LV2010SP1-64 bit.

I've attached a VI that explains the problem.

A quick summary:

I’m running LV2010-32 and LV2010-64 at the same time on my W7-64bit computer.

I opening the attach VI in both LV versions.

I have an enum on the FP that executes 3 different queries.

Here is the time statistic for all the 3 queries:

post-941-0-68884500-1306286736_thumb.png

I’ve a disable structure in the code to try two different ways of getting data, both give me the same result.

The problem is that when I'm getting NO data/rows back from the query, it takes LV2010-64bit ages to execute that.

Why?

Is there a ADO-64 bit Active-X Component I should use?

Cheers,

Mike

SQL1.vi

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NI has found the problem and filed a CAR for this.

They did give me a workaround, that needs a small change in the LabSQL drivers.

Always before you get the the data, do a PropertyNode: _Recordset.EOF check.

post-941-0-12266800-1306794079_thumb.png

Cheers,

Mike

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