oracle 修改某字段,判断是否为空,若是为空赋默认值

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 转载于:https://www.cnblogs.com/lwy11

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