[MySQL] How to Drop foreign key

How to Drop a Foreign Key in MySQL

ALTER  TABLE  'table_name'  DROP  FOREIGN  KEY  'foreign_key'

and I got an error as below:

#1091  - Can't DROP 'foreign_key'; check that column/key exists

1. Find the foreign key contraint using

    SHOW  CREATE  TABLE  'table_name';
   

   Normally it’s ‘table_name_ibfk_1’.
   

2. Drop Foreign key

    ALTER  TABLE  'table_name'  DROP  FOREIGN  KEY 'table_name_ibfk_1';  
    ALTER  TABLE  'table_name'  DROP  INDEX  'column';
   

Reference:

https://stackoverflow.com/questions/25079645/cant-drop-foreign-key-in-mysql

Any advice and suggestions are welcome and appreciated!