• 1. select-from-where: 语句 | 查询块 | 查询 | 查询语句
• 2. select from where like: 关于数据库查找

• 1.A FLWOR expression is much like a SELECT-FROM-WHERE expression in SQL: it is used to iterate through a list of items and to optionally return something that is computed from each item.
  FL WOR表达式非常像SQL中的SELECT - FROM - WHERE表达式——它用于对由多项组成的一个列表进行迭代，并且可以选择返回通过在每一项上进行计算得到的值。
  dict.yoduao.com
• 2.Another misconception about XQuery is that it requires FLWOR (which stands for let, where, order by, return) expressions-similar to the misconception that SQL requires SELECT-FROM-WHERE expressions.
  关于XQuery的另一个误解是它需要FL WOR(代表let、where、order by、return)表达式—类似于SQL需要SELECT - FROM - where表达式这种误解。
  dict.yoduao.com
• 3.Where; you select the columns of interest from rows in a table or tables where certain conditions are satisfied.
  您可以从一个或多个表的行中选择您感兴趣的满足特定条件的列。
  dict.yoduao.com

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