On delete cascade
ON DELETE CASCADE is a relational foreign-key action that automatically deletes referencing rows when their referenced row is deleted.
Java Persistence with Spring Data and Hibernate epub
ON DELETE CASCADE is a relational foreign-key action that automatically deletes referencing rows when the referenced row is deleted.
- How it is used
- Uses database-enforced cascading to remove dependent association rows efficiently when an owning row is deleted.
- How deep it goes
- Defines database-side deletion and schema annotation, but stops short of changing Hibernate runtime behavior.
- Examples
- Demonstrates Item and Bid deletion with H2, Hibernate @OnDelete, and a generated foreign-key cascade.
- What you can do after
- Operate/configure Hibernate schema generation with @OnDelete and verify whether the target DBMS supports the resulting foreign-key action.
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Build Financial Software with Generative AI (From Scratch)
ON DELETE CASCADE is a database referential action that automatically deletes dependent records when their referenced parent record is deleted.
- How it is used
- Prevents orphaned ACH hierarchy records by deleting dependent rows when parent records are removed.
- How deep it goes
- Defines the referential-action use case and hierarchy, but stops short of showing executable SQL or a deletion workflow.
- Examples
- Uses ACH file, batch header, entry, addenda, and control records to demonstrate dependent deletions.
- What you can do after
- Configure foreign keys with ON DELETE CASCADE to remove invalid dependent ACH records automatically.
Read how Build Financial Software with Generative AI (From Scratch) explains on delete cascade →
Related concepts
- foreign keyconfigures · A foreign key is a column or set of columns in a relational table whose values reference a candidate key in the same or another table, establishing a relationship and supporting referential integrity.
- MySQLcontrasts with · MySQL is an open-source relational database management system that stores, manages, and queries structured data using SQL.
- soft deletionalternative to · Soft deletion is a technique that marks or hides data as deleted while retaining its physical representation for recovery or later permanent removal.
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