|
I want to update a column in myTable. The value this column is set to
depends on a nested select statement which sometimes returns 0 rows
instead of 1. This is a problem since the column I'm trying to update
is set to refuse nulls. Here's a sample: update myTable set myColumn = (Select altColumn from altTable where altColumn != 'XXX' limit 1) where myColumn = 'XXX'; MyColumn cannot accept nulls, but sometimes "Select altColumn ..." returns 0 rows, and thus, the query fails. Is there a way to set a default value to be inserted into myColumn if and when "select altColumn ..." returns zero rows? Mark |
begin:vcard fn:Mark Fenbers n:Fenbers;Mark org:DoC/NOAA/NWS/OHRFC adr:;;1901 South SR 134;Wilmington;OH;45177-9708;USA email;internet:[EMAIL PROTECTED] title:Sr. HAS Meteorologist tel;work:937-383-0430 x246 x-mozilla-html:TRUE url:http://weather.gov/ohrfc version:2.1 end:vcard
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