3780 - Referencing column ‘assagement_id‘ and referenced column ‘id‘ in foreign key constraint ‘FKhl

1. Operation

1. Modify the type of table

alter table t_user modify column  assagement_id VARCHAR(111);

2. Error

3780 - Referencing column 'assagement_id' and referenced column 'id' in foreign key constraint 'FKhlaffssam5nthcbq199w4tccp' are incompatible., Time: 0.009000s

3. Solution

Delete foreign key

ALTER TABLE t_user 
DROP FOREIGN KEY FKhlaffssam5nthcbq199w4tccp;

Execute again

alter table t_user modify column  assagement_id VARCHAR(111);