How To Fix D4518 - Average time used by table scans (s)

D4518 - Overview

• Message type: E = Error

• Message class: D4 - DB2/400 specific messages

• Message number: 518

• Message text: Average time used by table scans (s)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message D4518 - Average time used by table scans (s) ?

  The SAP error message D4518, which refers to "Average time used by table scans (s)," is typically related to performance issues in the SAP system, particularly concerning database table scans. This message indicates that the average time taken for table scans is higher than expected, which can lead to performance degradation in the system.
  
  Cause:
  
  Inefficient Queries: Queries that do not use indexes effectively may result in full table scans, which are time-consuming.
  Lack of Indexes: If the relevant database tables do not have appropriate indexes, the database engine may need to scan the entire table to retrieve the required data.
  Database Statistics: Outdated or missing database statistics can lead to suboptimal query execution plans.
  High Volume of Data: Large tables with a significant amount of data can naturally lead to longer scan times.
  Database Configuration: Poorly configured database parameters can also contribute to performance issues.
  
  
  Solution:
  
  Optimize Queries: Review and optimize SQL queries to ensure they are