[FWTools] sql string functions for shapefiles in ogrinfo
bryan at geomega.com
Tue Jan 16 12:02:18 EST 2007
Mateusz Loskot wrote:
> Bryan Keith wrote:
>> I can use this command and get the output I expect from a shapefile:
>> ogrinfo "myfile.shp" -al -sql "select * from 'myfile' where ID = 'SB-18'"
>> However, what if I want all records where ID starts with 'SB'? If I
>> tried left, substr and others e.g.:
>> where left(ID,2) = 'SB'
>> I assume if you're using a db like PostGIS then the sql is parsed by the
>> db, and you can read the db documentation for the sql syntax. Which sql
>> syntax reference should I be using for shapefiles?
> SQL query compiler in OGR supports SQL standard operators: LIKE, ILIKE,
> IS, IN, etc.
> So, you can write your query as follows:
> "select * from myfile where ID LIKE 'SB%'"
That works for me. Thank you.
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