Error
Error Code:
379
SAP S/4HANA Error 379: Table Schema Mismatch
Description
This error indicates that the structure of a database table (its columns, data types, or constraints) does not align with what the SAP S/4HANA application expects. It commonly occurs during system upgrades, data migrations, or when custom developments interact with standard tables, leading to transaction failures or data access issues.
Error Message
ERR_SQL_TABLE_SCHEMA_MISMATCH
Known Causes
4 known causesUpgrade or Migration Inconsistencies
During system upgrades or data migrations, the underlying database schema might not have been correctly updated or synchronized with the new SAP S/4HANA application version.
Customization Conflicts
Custom developments or extensions might have introduced modifications to a table's schema that conflict with standard SAP expectations or other existing custom logic.
Direct Database Modification
Unauthorized or incorrect manual changes made directly to the database schema, bypassing SAP's application layer, can lead to inconsistencies.
Faulty Transport Request
An incorrectly configured or executed transport request for schema-related changes can result in inconsistent table definitions across different SAP system landscapes.
Solutions
3 solutions available1. Reactivate SAP Objects and Recreate Table Indexes medium
This solution involves reactivating the relevant SAP objects and rebuilding any potentially mismatched indexes.
1
Identify the SAP application object (e.g., program, function module, CDS view) that is triggering the error. This often requires consulting the SAP application logs (SM21, ST22) or tracing the execution flow.
2
Use transaction SE80 (Object Navigator) or SE24 (Class Builder) to locate the identified object.
3
Right-click on the object and select 'Activate' or use the activation button. This process will recompile the object and check for inconsistencies with the underlying database schema.
4
If the error persists, proceed to check and potentially recreate database indexes. Use transaction SE11 (ABAP Dictionary) and navigate to the table involved in the error. Go to 'Indexes' and check for any discrepancies or inconsistencies. If necessary, delete and recreate the index, ensuring it matches the expected definition.
5
For a more systematic approach to index management, consider using SAP Note 2236509 (SAP HANA: Index management for SAP HANA tables) and related tools or reports provided by SAP for index analysis and repair.
2. Apply SAP Support Packages and SAP Notes medium
Ensures your S/4HANA system is up-to-date with the latest patches and bug fixes.
1
Consult SAP Support Portal (SAP ONE Support Launchpad) for relevant SAP Notes related to 'ERR_SQL_TABLE_SCHEMA_MISMATCH' or error code 379. Search for notes specifically for your S/4HANA version and database (SAP HANA).
2
Download and review the identified SAP Notes. Pay close attention to prerequisites, implementation steps, and potential conflicts with existing configurations.
3
Plan and apply the recommended SAP Support Packages or individual SAP Notes using transaction SPAM/SNOTE. Ensure proper testing in a non-production environment before applying to production.
4
After applying the notes/patches, perform a system restart or bounce for the changes to take full effect.
3. Database Consistency Check and Repair (SAP HANA) advanced
Directly addresses potential inconsistencies at the SAP HANA database level.
1
Access the SAP HANA database using SAP HANA Studio or SAP HANA Cockpit.
2
Perform a consistency check of the affected table. This can be done by querying the system views. For example, you can compare the column definitions in the SAP data dictionary (e.g., using `M_TABLES` and `M_COLUMNS` views) with the actual table structure in the database.
3
If discrepancies are found, you might need to use specific SAP HANA SQL commands to rectify them. This is a highly sensitive operation and should only be performed by experienced SAP HANA DBAs with appropriate backups in place.
4
A potential command to re-create a table's metadata (use with extreme caution and after thorough analysis):
sql
ALTER TABLE "<schema_name>"."<table_name>" RENAME TO "<table_name>_OLD";
ALTER TABLE "<schema_name>"."<table_name>_OLD" RENAME TO "<table_name>";
**Note:** This is a simplified example and might not be suitable for all scenarios. Always refer to SAP HANA documentation for specific commands and best practices.
sql
ALTER TABLE "<schema_name>"."<table_name>" RENAME TO "<table_name>_OLD";
ALTER TABLE "<schema_name>"."<table_name>_OLD" RENAME TO "<table_name>";
**Note:** This is a simplified example and might not be suitable for all scenarios. Always refer to SAP HANA documentation for specific commands and best practices.
5
Consider using SAP HANA database maintenance tools or running specific SAP HANA health checks to identify and resolve underlying database issues.