Database Integrity Constraint Violation: Parent Key Not Found (XZXK.SYS_C0015985)

This error message indicates that there's a violation of an integrity constraint in a database. Specifically, it states that the 'parent key' is not found.

In a relational database, an integrity constraint is a rule ensuring data validity and consistency. A 'parent key' refers to a primary key in a parent table, while a 'child key' refers to a foreign key in a child table. The parent key must exist in the parent table for the child key to reference it.

When the error message states that the 'parent key' is not found, it means the foreign key value in the child table doesn't match any primary key value in the parent table. This violation prevents establishing a valid relationship between the two tables.

To resolve this issue, ensure the foreign key value in the child table corresponds to an existing primary key value in the parent table. Check your data and make sure the referenced 'parent key' exists before executing the operation that caused the error.

Additionally, check for inconsistencies in your database, such as missing or deleted records.