V4RB b41, Example Advanced/ImportExport.

Tue Feb 1 14:13:04 CST 2005

Looks very promising, Ruslan!

A couple of questions:

1.  How do we handle situations where our field or line delimiter 
happens to exist in one of the string or binary fields we're exporting? 
  Hmmm.  Or, I can work around this by using guaranteed-unique field and 
line delimiters....  Can I use Unicode "private-use" code points 
between E000 and F8FF?

2.  This is all currently done with cursors; will it be possible to do 
it from sets?

3.  Would it be possible to create a variation, where the data stream 
was returned to the user in the form of a string, rather than written 
out to a file -- or maybe give us an option to "append" rather than 
replace a file?

Having all of the above would let me easily create data transaction 
logs....

-- Erik

On Jan 31, 2005, at 16:50, Ruslan Zasukhin wrote:

> Hi All,
>
> I _very_ recommend to all check this example.
>
> * it show several new functions that was added to V4RB.
>
> * it show the new features of import/export
>
> * it show practically ready for use in real world dialgos of 
> import/export.
>
>    Jochen, you should practically copy this dialogs into Vstudio,
>    and algorithms. Everything is quite simple.
>    This is according to import/export of text files.
>
> * it show the use of RAM-based tmp table (!!!)
>
>     cool idea which did allow us quite easy resolve task
>     how to show the first N records of import in the dialog,
>     like FM and VAPP do.
>
>
> ------
> NOTE:
>
> 1) we have yet 2 bugs:
>
>     import of UTF16 is broken
>     import with custom Record Delimiter broken
>
> 2) to run example, make new db,
>     this create 2 tables,
>     first table have 2 records.
>     you can export T1
>     then import that back into T1 or T2.
>
>
> -- 
> Best regards,
> Ruslan Zasukhin      [ I feel the need...the need for speed ]
> -------------------------------------------------------------
> e-mail: ruslan at paradigmasoft.com
> web: http://www.paradigmasoft.com
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