我有一个包含类别的查找表和另一个包含详细信息的表,我试图通过左连接从查找表中获取所有内容,但我仍然只获得匹配的内容。以下是查询 -
select billing_medical_category_name,*
from billing_medical_category bmc
--left join UDW.billing_medical_claim_detail BMRPS WITH ( NOLOCK ) ON bmc.billing_medical_category_id = bmrps.billing_medical_category_id
--where bmrps.customer_segment_number = 00744257
--and cem_load_date > '01-03-2018'
--order by bmc.billing_medical_category_id