[GRASS-user] sqlite and string function::how can I replace
substrings in a table?
wqual
wolfgang.qual at gmx.net
Tue Aug 8 04:12:05 EDT 2006
Hi Glynn,
you are right: the substr-function of sqlite is not what I was looking for.
And I am no programmer (yet). But maybe there is someone outside, who already
solved this? Maybe a nice perl-script (sqlite somehow seems to offer the
possibility to activate regexp)?
Best regards,
Wolfgang
----8<----------------------
Am Montag 07 August 2006 pH:31:21 nachmittags/abends schrieb Glynn Clements:
> wqual wrote:
> > I need to replace substrings in my sqlite-attribute-table (e.g. ß--> ss,
> > ä --> ae etc.). I am wondering, if this is possible (but sqlite says: no
> > such function substring, no such function replace!).
>
> SQLite has a "substr" function and a concatenation operator ("||"),
> but it doesn't have any way to find the index of the character which
> you want to replace.
>
> So, you would either have to export the table to a text file and
> modify that, or write an extension using SQLite's C/C++ API.
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