select TC_OD_SD_NAME,TC_OD_DR_NAME ,count(distinct TC_RX_NO) 总张数,count(distinct(case when TC_OD_SD_NAME like '%儿科%' then TC_RX_NO else null end)) 儿科处方数 from TB_OD_PRESCRIPTION
select TC_OD_SD_NAME,TC_OD_DR_NAME ,count(distinct TC_RX_NO) 总张数,count(distinct(case when TC_OD_SD_NAME like '%儿科%' then TC_RX_NO else null end)) 儿科处方数 from TB_OD_PRESCRIPTION