companydirectorylist.com  Global Business Directories and Company Directories
Search Business,Company,Industry :


Country Lists
USA Company Directories
Canada Business Lists
Australia Business Directories
France Company Lists
Italy Company Lists
Spain Company Directories
Switzerland Business Lists
Austria Company Directories
Belgium Business Directories
Hong Kong Company Lists
China Business Lists
Taiwan Company Lists
United Arab Emirates Company Directories


Industry Catalogs
USA Industry Directories














  • SQL SELECT DISTINCT 语句 | 菜鸟教程
    在表中,一个列可能会包含多个重复值,有时您也许希望仅仅列出不同(distinct)的值。 DISTINCT 关键词用于返回唯一不同的值。
  • DISTINCT中文 (简体)翻译:剑桥词典 - Cambridge Dictionary
    The sales chart shows a distinct decline in the past few months There's a distinct possibility that I'll be asked to give a speech There has been a distinct improvement in Tim's cooking Plant growth is most distinct in spring and early summer
  • SQL DISTINCT - SQL 教程
    请注意, DISTINCT 仅从表中选择不重复的值,它不会删除表中的重复行。 如果您想选择两列并移除其中一列的重复项,您应该改用 GROUP BY 子句。
  • SQL中的DISTINCT、SQL DISTINCT详解、DISTINCT的用法、DISTINCT注意事项
    DISTINCT 是 SQL 中用来返回唯一不重复结果集的关键字。 它通常用于 SELECT 语句中,可以指定一个或多个列进行去重,并返回唯一的结果。
  • SQL SELECT DISTINCT 语句 - w3school 在线教程
    本章讲解 SELECT DISTINCT 语句。 在表中,可能会包含重复值。 这并不成问题,不过,有时您也许希望仅仅列出不同(distinct)的值。 关键词 DISTINCT 用于返回唯一不同的值。 语法: SELECT DISTINCT 列名称 FROM 表名称 如果要从 "Company" 列中选取所有的值,我们需要使用
  • SQL DISTINCT 用法总结 - 阿里云开发者社区
    DISTINCT 是 SQL 查询中的关键字之一,用于返回唯一不同的值。 当我们想要从数据库表中获取某一列的不重复值时, DISTINCT 就派上用场了。
  • DISTINCT Definition Meaning - Merriam-Webster
    distinct, separate, discrete mean not being each and every one the same distinct indicates that something is distinguished by the mind or eye as being apart or different from others
  • SQL – Distinct 语句|极客教程
    当我们仅使用distinct关键字时 唯一值 将被获取 语法 : SELECT DISTINCT column1, column2 FROM table_name column1, column2 : 表字段的名称。




Business Directories,Company Directories
Business Directories,Company Directories copyright ©2005-2012 
disclaimer