SQL將一個表的字段值匹配更新到另外一個表的某個字段上

UPDATE MD_MATERIAL t1 set t1.MATERIAL_NAME_EN = ( select t.PART_NAME_EN as MATERIAL_NAME_EN from MSTDATA.MD_PART_NAME t where t1.MATERIAL_NAME = t.PART_NAME_ZH) where exists (select t.PART_NAME_EN

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