MySQL 5.7: implementing Foreign Key Constraints Causing Unexpected Errors During Bulk Insertions
I'm having trouble with I'm following best practices but I'm trying to implement I've looked through the documentation and I'm still confused about I'm working with an scenario when performing bulk insertions into a table that has foreign key constraints in MySQL 5.7... The foreign key references a primary key in another table, and most entries are valid. However, when I try to insert a large batch of data (around 10,000 rows), I receive the behavior: `behavior Code: 1452. want to add or update a child row: a foreign key constraint fails`. It's not clear to me which rows are causing the scenario, and the behavior message does not provide enough context. I've tried breaking the data into smaller chunks of 1,000 rows, but the same behavior continues. Here's the code snippet I'm using to perform the bulk insert: ```sql INSERT INTO child_table (parent_id, data) VALUES (1, 'data1'), (2, 'data2'), (3, 'data3'), ..., (10000, 'data10000'); ``` The `parent_id` in the `child_table` should correspond with the `id` in the `parent_table`. I ran a check on the `parent_table` and confirmed that all referenced IDs exist, but I'm still working with issues. To debug, I ran a query to check for any `NULL` values in the `parent_id` column, and it returned none. I also attempted to disable foreign key checks temporarily using `SET FOREIGN_KEY_CHECKS=0;`, but I want to ensure data integrity and would prefer not to rely on that. Is there a better way to handle this scenario, or a way to identify which specific rows are causing the foreign key constraint violation? Any insights or suggestions would be greatly appreciated! What's the best practice here? I'm working on a application that needs to handle this. Is there a better approach? My team is using Sql for this application. Any feedback is welcome! For reference, this is a production service. Any suggestions would be helpful. Am I approaching this the right way?