Author: MB Software Solutions, LLC
Posted: 2011-09-07 at 00:16:37
On 9/6/2011 8:44 PM, Charlie Coleman wrote:
> At 04:27 PM 9/6/2011 -0400, MB Software Solutions, LLC wrote:
>> On 9/6/2011 4:03 PM, kamcginnis@gmail.com wrote:
>>> I found that zap usually fails with VFP9 SP2. I use delete all and pack
>> and have no problems at all. (pack requires
>>> exclusive use, same as zap)
>>
>> Really? What's the failure message? You're right that DELETE ALL and
>> PACK is equivalent, but I thought I recall ZAP being quicker. ??
>
> If you've got a few hundred thousand records in the table, ZAP would be
> quite a bit faster.
>
> Heck, I'd be tempted to do my own ZAP routine before going the DELETE ALL /
> PACK route...
>
> Function myzap
> parameter cTbl2Zap
> LOCAL cDataDir
> cDataDir = addbs(justpath(dbc()))
>
> select (cTbl2Zap)
> copy structure to (cDataDir + cTbl2Zap + "_tmpthing") database (dbc()) with CDX
> DROP TABLE (cTbl2Zap)
> USE (cTbl2Zap + "_tmpthing")
> copy structure to (cDataDir + cTbl2Zap) database (dbc()) with cdx
> drop table (cTbl2Zap + "_tmpthing")
> use (cTbl2Zap)
>
> return
>
>
> Of course, if ZAP was hitting an error, maybe the DROP TABLE would have
> triggered the same thing....?
Neat idea, Charlie! I'll consider it. No, the ZAP wasn't the line
hitting the error.
--
Mike Babcock, MCP
MB Software Solutions, LLC
President, Chief Software Architect
http://mbsoftwaresolutions.com
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