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Description

This error, `ERR_SQL_EXST_LIBRARY`, indicates an attempt to create or register a library with a name that already exists within the SAP S/4HANA system's database or development environment. It typically occurs during development, system configuration, or deployment activities when defining new database objects or code libraries.

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Error Message

ERR_SQL_EXST_LIBRARY: Cannot use duplicate library name

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Known Causes

3 known causes

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Accidental Library Duplication

A new library was created with a name identical to an existing library due to a naming oversight or typo during development or configuration.

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Incorrect Deployment Attempt

During a system deployment, migration, or update, an attempt was made to register a library that already exists in the target environment without proper handling for existing objects.

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Inconsistent Naming Conventions

Lack of strict naming conventions led to developers or administrators unknowingly using an already reserved or existing library name.

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Solutions

3 solutions available

1. Identify and Remove Duplicate Library Definitions medium

Locate and delete the redundant library definition that is causing the conflict.

1

Access the SAP HANA database using a client tool (e.g., SAP HANA Studio, hdbsql).

2

Query the system views to find all defined libraries and identify potential duplicates. Pay close attention to the `SCHEMA_NAME` and `LIBRARY_NAME` columns.

SELECT SCHEMA_NAME, LIBRARY_NAME, CREATED_BY, CREATION_TIME FROM SYS.LIBRARY_OBJECTS ORDER BY SCHEMA_NAME, LIBRARY_NAME;

3

Analyze the query results to pinpoint the duplicate library entry. This might involve comparing creation times, users, or other metadata if the names are identical.

4

Once the duplicate is identified, use the `DROP LIBRARY` statement to remove it. Ensure you are dropping the correct instance of the library.

DROP LIBRARY "<SCHEMA_NAME>"."<LIBRARY_NAME>";

5

Verify that the duplicate library has been removed by re-running the query from step 2.

SELECT SCHEMA_NAME, LIBRARY_NAME, CREATED_BY, CREATION_TIME FROM SYS.LIBRARY_OBJECTS ORDER BY SCHEMA_NAME, LIBRARY_NAME;

2. Rename the Conflicting Library medium

Alter the name of one of the duplicate libraries to resolve the naming conflict.

1

Connect to the SAP HANA database with appropriate privileges.

2

Identify the duplicate libraries using the query provided in Solution 1, Step 2.

SELECT SCHEMA_NAME, LIBRARY_NAME, CREATED_BY, CREATION_TIME FROM SYS.LIBRARY_OBJECTS ORDER BY SCHEMA_NAME, LIBRARY_NAME;

3

Choose one of the duplicate libraries to rename. It's generally advisable to rename the one created more recently or the one that is less actively used, if discernible.

4

Execute the `ALTER LIBRARY RENAME TO` statement to change the name of the selected library. Ensure the new name is unique within its schema.

ALTER LIBRARY "<SCHEMA_NAME>"."<OLD_LIBRARY_NAME>" RENAME TO "<NEW_UNIQUE_LIBRARY_NAME>";

5

Update any applications, scripts, or procedures that reference the renamed library to use the new name.

6

Confirm the rename by re-querying the `SYS.LIBRARY_OBJECTS` view.

SELECT SCHEMA_NAME, LIBRARY_NAME FROM SYS.LIBRARY_OBJECTS WHERE SCHEMA_NAME = '<SCHEMA_NAME>' AND (LIBRARY_NAME = '<OLD_LIBRARY_NAME>' OR LIBRARY_NAME = '<NEW_UNIQUE_LIBRARY_NAME>');

3. Review and Re-deploy Library Code advanced

Re-examine the source code of the libraries to understand why duplicates were created and re-deploy them correctly.

1

Identify the source code for the libraries that are causing the duplicate name error. This might involve checking version control systems, development environments, or deployment scripts.

2

Analyze the logic within the library code that defines its name. Look for any instances where a library is being created or registered with a name that already exists.

3

If the duplication is due to an oversight in the deployment process (e.g., running a script twice), correct the deployment script or procedure to ensure libraries are created only once.

4

If the duplication is intentional but poorly managed, consider refactoring the library naming strategy to ensure uniqueness.

5

After correcting the source or deployment process, re-deploy the library or libraries. If existing duplicates are present, you may need to drop them first (as per Solution 1) before deploying the corrected version.

6

Test the functionality of the application or process that uses the library to ensure it works as expected with the corrected deployment.

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Related Errors

5 related errors

SAP S/4HANA Error 671: Duplicate Library Name Detected