Question

有什么方法可以搜索表的数据，我将使用两个标准Firstname和lastname？

表1

Firstname | LastName | Gender

| Donald | Trump | Male|

表2

GFirstName | GLastName | Gender

|Hillary| Clinton | Female

|Donald | McDonald| Female

就我而言，我想搜索＆＃34;唐纳德特朗普＆＃34;

和MySQL数据应该显示

的信息

表1

 Donald | Trump| Male

我尝试使用此查询，但它没有给我任何东西

SELECT *
FROM table1
WHERE 'Firstname' LIKE %Donald Trump%
  OR 'LastName' LIKE %Donald Trump%
  UNION ALL
  SELECT *
  FROM table2 WHERE 'Firstname' LIKE %Donald Trump%
  OR 'LastName' LIKE %Donald Trump%

Answer 1

更改如下所示的查询，将括号括起来或条件：

SELECT *
FROM table1
WHERE ('Firstname' LIKE %Donald Trump%
  OR 'LastName' LIKE %Donald Trump%)
  UNION ALL
  SELECT *
  FROM table2 WHERE ('Firstname' LIKE %Donald Trump%
  OR 'LastName' LIKE %Donald Trump%)

Answer 2

尝试

SELECT *
  FROM table1
  WHERE 
         CONCAT (Firstname, ' ',LastName)  LIKE '%Donald Trump%' 
  UNION ALL
  SELECT *
  FROM table2 WHERE CONCAT (Firstname, ' ',LastName)  LIKE '%Donald Trump%'

如何搜索两个表有不同列的表

2 个答案: