[Qgis-user] SQL to update table

[Chuck Young]

I am trying to eliminate the text "NULL" from a table.  I have imported a
set of Tiger road data and in some of the columns that I need to display
the data itr has "NULL" in the field.  If it is Null I would really like
that NOT to show up in the labeling on the map.

I have tried some standard SQL update queries but they didn't work.

I tried the following from the QSpatialite form that appears from within
QGIS.
Example:
update "mc-roadsegs" Set "RFROMHN" = "" Where "RFROMHN" = "NULL";

I also tried to construct a query from within the query builf=der at the
top of the Attribute table in Edit mode.

I really need to remove these unwanted valued.  It has been a while since I
used SQL on a routine basis so I am a bit rusty.

Any help will be much appreciated!

Thanks

Chuck
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