If you need to drop an index or uniq column from mysql, in the command line,
first find out the FK or UNIQ key,
“show create table table_name”;
now, you will see the sql for creating a table, copy and paste the key, eg
“drop index FK_40123345 on table_name;”
To double check if this is correct, run
“describe table_name”
If when updating tables, you get foreign key constraint error, you need to disable foreign key check first, then update the table. ie, in command line,
“set global foreign_key_checks=0”
after you run the sql updates, remember to turn the check back on
“set global foreign_key_checks=1”
