A join is performed inside the XQuery to show the name of each product, since the purchase order only stores product id, price, and quantity.
在XQuery内执行联接以显示每个产品的名称，因为采购订单仅存储产品ID、价格和数量。
Sort the list of contacts by first name, last name, or show only those contacts that have a photo stored in the database.
按照姓或名对联系人排序，或者只显示那些在数据库中有照片的联系人。
"Most people just use these as a status symbol, to show they have money," said a Haagen-Dazs employee who gave only her last name, Li.
一位哈根达斯的李姓员工说：“很多人只是把这当作一种身份的象征，显示自己很有钱罢了。”
Documentary evidence needs only to be sufficient to show the patient's acquired (female) name, and bear a date at least 12 months prior to surgery.
文件证据只需展示患者已取得的（女性）名字，并表明为至少在手术前12个月取得的。
Documentary evidence needs only to be sufficient to show the patient's acquired (female) name, and bear a date at least 12 months prior to surgery.
文件证据只需展示患者已取得的（女性）名字，并表明为至少在手术前12个月取得的。
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