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mysql - #1452-Cannot add or update a child row:a foreign key constraint fails (`testdatabase`.`#sql-1 - Stack Overflow
SQLSTATE[HY000]: General error: 1215 Cannot add foreign key constraint · Issue #27717 · laravel/framework · GitHub
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Mysql error 1452 - Cannot add or update a child row: a foreign key constraint fails - Stack Overflow
How to resolve 'MySQL error 1215: cannot add foreign key constraint' (MySQL, foreign keys, development) - Quora
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sql - MySQL ERROR #1215 - cannot add foreign key constraint (relationship table cannot be created) - Stack Overflow
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