# Infor LN error 512, error 513 and error 201: meaning and fix

> Source: https://netray.co/erp-help/infor-ln-error-512-513-201-database-errors
> Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems.
> Section: ERP Help

## Short answer

These are numeric runtime errors raised by the LN database layer or the underlying RDBMS driver. The number alone is not the diagnosis. The message text, the table and the database log together tell you whether it is a lock, a key or constraint violation, a connection issue or a missing object.

## Kind

error

## System

infor-ln

## Erp

Infor LN

## Module

Database driver / runtime

## Query

error 512 infor ln

## Alternate Queries

- error 513 in infor ln
- error 201 in infor ln
- infor ln database error 512

## Applies To

Infor LN 10.x and Baan 5.x on Oracle or SQL Server; the numeric meaning is version dependent.

## Steps

### Get from the number to the cause

**Items:**

- Capture the full message: the table name, the operation (read, write, delete, lock) and the user and session.
- Open the bshell log and the database driver log for the same time. They typically include the native database error behind the LN number.
- Look up the code in the error messages for your version rather than relying on forum answers. Numeric codes have changed meaning across versions.
- If the table is named, check it exists, is physically created and in sync with its definition (Create Runtime Data Dictionary and Convert to Runtime if customized).
- Check the database itself: locks, deadlocks, tablespace or log space, and connectivity to the database server.
- Reproduce with a single user to rule out concurrency before escalating.

## Sections

### Reading the error as a layered stack

**Body:**

LN does not talk to the database directly. A session calls the database driver, which translates operations into SQL and returns a result code. Errors in the 500 range have commonly been reported for table-level operations that failed in the driver, while 2xx codes belong to the classic Baan database layer. Treat that as a pattern, not a rule, and confirm for your version.

The point is that the same number can come from different root causes: a lock conflict, a duplicate key, a table that does not exist yet, or a lost database session. The native error in the driver log disambiguates.

### Common root causes by symptom

**Body:**

If the failure appears during a write on a table with a unique index, suspect a duplicate key from data conversion or a custom script. If it appears only at busy times, suspect lock contention or deadlocks. If it appears right after a customization deployment, suspect the runtime data dictionary being out of sync with the table.

If it starts for all users at once, look at the database server: expired credentials for the LN database account, a stopped listener, a full tablespace, or a failover.

**Code:**

- -- Oracle: sessions blocking others
- SELECT blocking_session, sid, serial#, wait_class FROM v$session WHERE blocking_session IS NOT NULL;

### When to escalate

**Body:**

Escalate to Infor support with the exact message, the table, the bshell and driver logs and your LN version and porting set. Without those, support will ask for them first. Escalate to the DBA if the native error is a database error such as space, lock or connectivity.

## Pitfalls

- Googling the number and applying a fix written for another version.
- Killing database sessions without checking what they were doing.
- Fixing duplicate key errors by deleting data without finding the source.
- Skipping the DD sync step after customizations.
- Not preserving logs before restarting services.

## Ai Angle

A private assistant can index your own historical incidents, logs and change records, then answer 'we saw error 512 on this table last March and it was a deployment out of sync' with the source cited. It stays inside your network, which matters when logs contain production data. It supports the admin and does not run fixes.

## Faq

### Is error 512 the same in every LN version?

**Answer:** Do not assume so. Numeric codes are version and driver dependent. Use the message text and the native database error in the logs to decide what it is.

### Is error 201 a database or application error?

**Answer:** In Baan lineage 2xx numbers are database layer conditions. Read the accompanying text and the table name; the same number can follow different causes.

### Can I just retry the operation?

**Answer:** For a transient lock or connectivity problem, yes. For a key violation or missing object, retrying repeats the failure.

### Who should look at it, the LN admin or the DBA?

**Answer:** Start with the LN admin to collect logs, then involve the DBA when the native error shows a database condition.

## Search terms

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