mysql replace parts of a string

Question

I'm trying to do this in mysql . How can I replace parts of a string in a column in MYSQL with 1000 records. Change all records form .JPG to .gif

eg. DC3444.JPG to DC3444.gif

Answer 1

update your_table 
set some_column = replace(some_column, '.JPG', '.gif')

Answer 2

UPDATE table1 SET col1 = REPLACE(col1, '.JPG','.gif')

使用它作为参考： http : //dev.mysql.com/doc/refman/5.5/en/string-functions.html#function_replace