How To Fix DI802 - For. key field &-& for join cond. to sec. table & not in base table

DI802 - Overview

• Message type: E = Error

• Message class: DI - Dictionary messages: Indexes

• Message number: 802

• Message text: For. key field &-& for join cond. to sec. table & not in base table

What causes this issue?

Each secondary table of a lock object must be connected to a base table
above it in the hierarchy with a join condition. This join condition
must be implemented via a foreign key. This foreign key must have the
secondary table as foreign key table and the base table higher in the
hierarchy as check table. Normally the secondary table should be a key
enhancement of its check table.
In this case one of the foreign key fields of the join condition is not
in a base table. This purely hierarchical relationship thus no longer
exists.

System Response

The action is continued with a warning. The outgoing foreign key
relationship has no effect on the functionality of the lock object.

How to fix this error?

If no other error is reported, the lock object is consistent. You
should however check whether the deviation from the hierarchical
structure is desired.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DI802 - For. key field &-& for join cond. to sec. table & not in base table ?

  The SAP error message DI802 typically indicates an issue with a join condition in a database query, specifically when a key field is referenced in a secondary table but is not present in the base table. This can occur in various contexts, such as when working with database views, joins in ABAP programs, or when defining data models in SAP.
  
  Cause:
  The error arises when:
  
  A join condition is defined between two tables, but the key field specified in the join condition does not exist in the base table.
  There may be a mismatch in the field names or the structure of the tables involved in the join.
  The data model or query is incorrectly defined, leading to references to non-existent fields.
  
  
  Solution:
  To resolve the DI802 error, you can take the following steps:
  
  
  Check the Join Condition:
  
  Review the join condition in your query or data model. Ensure that the key field specified in the join condition exists