sql 语句 相同数据更新，不同数据插入

执行一条Sql语句,相同的vendor_id ,inventory_item_id就更新，不同的插入新增数据

 

merge into tscs_ems_upload_storage_t a

using (select ? as vendor_id,

                     ? as inventory_item_id ,

                     ? as description ,? as unit,

                     ? as quantity,? as check_date,

                     ? as last_updated_by,

                     ? as created_by from dual) b

on (a.vendor_id = b.vendor_id and a.inventory_item_id = b.inventory_item_id)

when matched then

      update set

            a.description  = b.description,

            a.unit = b.unit,

            a.quantity  = b.quantity,

            a.check_date  = to_date(b.check_date,'yyyy-MM-dd'),

            a.last_updated_by = b.last_updated_by,

           a.last_update_date = sysdate

when not matched then

   insert (a.id,a.vendor_id,a.inventory_item_id,a.description,a.unit,a.quantity,

             a.check_date,a.created_by,a.last_updated_by)

values(tscs_ems_upload_storage_s.nextval,b.vendor_id,

            b.inventory_item_id,b.description,b.unit,b.quantity,

             to_date(b.check_date,'yyyy-MM-dd'),b.created_by,b.last_updated_by)

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1 楼 wangxieke 2012-02-09