找到一个至少从这些技术中工作过的人[reactjs,mysql,express]

Question

我有一个包含名称和技术字段的表.

-----------------------------
|name       | technologies  |
-----------------------------
|shashin    | reactjs       |
-----------------------------
|shashin    | mysql         |
-----------------------------
|krupali    | express       |
-----------------------------
|paras      | mysql         |
-----------------------------
|shashin    | express       |
-----------------------------
|paras      | php           |
-----------------------------
|krupali    | php           |
-----------------------------
|shashin    | php           |
-----------------------------

我想找到一个至少在所有这些技术中起作用的人名[reactjs,mysql,express].

OUTPUT:

-------------
|name       |
-------------
|shashin    |
-------------

Answer 1

你可以尝试以下.

select name from TableName
group by name
having count(distinct technologies) > 2

如果你想要特定的技术,你可以尝试以下.

 select name from TableName
 where technologies in('reactjs', 'mysql', 'express')
 group by name
 having count(distinct technologies) > 2