MYSQL + Change path + Update substring

Question

I have a question, i have table 'file' with a column 'path' in my DB called Pics. Each path is like "C:\\my folder\\pics\\pic1.jpg" etc.......

How i do to change:

C:\my folder\pics\

to

C:\my NEW folder\NEW pics\

I try a select for the path folder without the filename like this :

SELECT substring(c1,1,locate(substring_index(c1,'/',-1),c1)-1) FROM t1

that give me "C:\\my folder\\pics\\". Now i need to update all the column path. What is the correct query. I try this but dont work.

update foto set path = 'z' where path = (SELECT substring(path,1,locate(substring_index(path,'\\',-1),path)-1)) 

Thanks for sharing

Answer 1

完成。

update foto set path = REPLACE(path,(SELECT substring(path,1,locate(substring_index(path,'\\',-2),path)-1)),'" & TextBox2.Text & "'