oracle 修改某字段,判斷是否爲空,若是爲空賦默認值

update table_complaint t set t.cptdatetime = nvl2(t.cptdatetime, '', to_char(to_date(t.cptdatetime, 'yyyy-mm-dd hh24:mi:ss') - 2))html where t.cpintid = 'djdjdj';post 轉載於:https://www.cnblogs.com/lwy11

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