在数据库的所有表、行和列中搜索已删除表的引用 id

Question

I had created a table in my DB and then deleted whole table. but now I got error of Foreign Key constraint of that table id. And due to it I am unable to update any other thing for my app in local.

I am having 400+ tables in my database with thousands of records.

How could I find that deleted table's reference id in my all current tables?

Answer 1

You can try to find all the referenced tables for the deleted table in the system database information_schema :

SELECT 
  kcu.TABLE_NAME, kcu.CONSTRAINT_NAME, kcu.COLUMN_NAME, 
  kcu.REFERENCED_TABLE_NAME, kcu.REFERENCED_COLUMN_NAME
FROM information_schema.KEY_COLUMN_USAGE kcu
WHERE kcu.REFERENCED_TABLE_SCHEMA = 'YourDatabaseName' AND 
      kcu.REFERENCED_TABLE_NAME = 'YourDeletedTableName'

Answer 2

You can search on the whole schema(DB) from mysql workbench for the referenced column name from there you will be able to find all the references