SUBSTRING ( ITEM_SPECIFICATION, CHARINDEX( '波段nm:', ITEM_SPECIFICATION ) + LEN( '波段nm:' ), CHARINDEX( ';', ITEM_SPECIFICATION, CHARINDEX( '波段nm:', ITEM_SPECIFICATION ) ) - CHARINDEX( '波段nm:', ITEM_SPECIFICATION ) - LEN( '波段nm:' ) ) 波段 , 数据:123456;波段nm:450-452.5; |