c/c++/java如何访问数据库（优秀博文）

(下面是c++) 

https://www.cnblogs.com/47088845/p/5706496.html 

https://www.cnblogs.com/shiyingzhi/p/7896259.html

https://www.2cto.com/database/201804/738287.html

(下面是c语言)

http://www.cnblogs.com/rupeng/archive/2012/10/06/2712841.html

 

(下面是java)

https://www.cnblogs.com/centor/p/6142775.html

https://www.cnblogs.com/Qian123/p/5339164.html