survey count is based on distinct cruise numbers recorded in RACE_DATA and accessed through the SURVEY_DEFINITIONS table:
SQLPlus script
select count(distinct cruise) survnumber
from race_data.cruises a, race_data.survey_definitions b, race_data.surveys c
where b.survey_name = 'Aleutian Islands Bottom Trawl Survey'
and a.survey_id = c.survey_id
and b.survey_definition_id = c.survey_definition_id
/
survey count is based on distinct cruise numbers recorded in RACE_DATA and accessed through the SURVEY_DEFINITIONS table: SQLPlus script select count(distinct cruise) survnumber from race_data.cruises a, race_data.survey_definitions b, race_data.surveys c where b.survey_name = 'Aleutian Islands Bottom Trawl Survey' and a.survey_id = c.survey_id and b.survey_definition_id = c.survey_definition_id /