distinct.sql

来自「AbsDataBase5.16 最新版」· SQL 代码 · 共 8 行

/*This SQL script uses Demos.abs database. 
  Please open ...\AbsoluteDatabase\Demos\Data\Demos.abs database file.
  This sample illustrates use of DISTINCT keyword.
  The query returns all names from the field "FirstName" excluding duplicates.*/

select distinct e1."FirstName"
  from "employee" e1