Selecte nd NULLs

I am doing a simple select.

SQL>select distinct dbname from mytable where cluster != 'orrac1';

I have a three column table "mytable" (dbname,sid,cluster). The table contains 206 total rows/136 rows with distinct dbname. No indices are on the table.

Some dbnames are not in a cluster (single server) so the cluster column is null.

When I run the select above the rows with the null in cluster column are not returned.

Shouldn't all rows be turned except what I am filtering out?

Sincerely,

Jim Allen
Database Support Lead, MASSDB Staff

Schedule: Mon-Fri, 7:00am-3:30pm
Tel: 1-301-763-7501

Cell: 1-202-604-7286
Database Help Desk: X34944
Support Email: James.Clarence.Allen_at_census.gov<mailto:James.Clarence.Allen_at_census.gov> Internal Website: http://epd.econ.census.gov/offices/massdb/

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