Thanks so much for your help.
Rather than typing in multiple queries which would have taken days for 730 columns. I used the data provided by the search query in phpmyadmin in print view and plugged it into an excel file (using paste special - Unicode).
I removed the columns of data that were not needed and added the instructions in the required columns (copying the same instruction vertically downwards for as many rows as needed). I used a concatenate function in excel to generate 730 instructions. I cut and paste all 730 instructions back into phpmyadmin. It took less than 30 minutes to do the prep work.
Here is a sample function in excel to do this: =CONCATENATE(A1,"",B1,"",C1,"",D1,"",E1,"",F1)
Here is a sample excel table so you can see how it works. I typed the above function into the last column (column G). I copied the concatenate function into all the required rows in column G. What you actually see in column G is the generated response, the instruction required. I then copied column G back into the database query window.
| ALTER TABLE | mdl_assignment | MODIFY | name | varchar(255) | CHARACTER SET utf8 COLLATE utf8_unicode_ci; | ALTER TABLE mdl_assignment MODIFY name varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci; |
| ALTER TABLE | mdl_assignment | MODIFY | intro | text | CHARACTER SET utf8 COLLATE utf8_unicode_ci; | ALTER TABLE mdl_assignment MODIFY intro text CHARACTER SET utf8 COLLATE utf8_unicode_ci; |
| ALTER TABLE | mdl_assignment | MODIFY | assignmenttype | varchar(50) | CHARACTER SET utf8 COLLATE utf8_unicode_ci; | ALTER TABLE mdl_assignment MODIFY assignmenttype varchar(50) CHARACTER SET utf8 COLLATE utf8_unicode_ci; |
| ALTER TABLE | mdl_assignment_submissions | MODIFY | data1 | text | CHARACTER SET utf8 COLLATE utf8_unicode_ci; | ALTER TABLE mdl_assignment_submissions MODIFY data1 text CHARACTER SET utf8 COLLATE utf8_unicode_ci; |
I also did a similar thing to ensure the table collations were correct as well. I hope this helps someone else.