How To Fix SMMSS_ALERTS071 - &1% of elapsed time caused by one statement

SAP Error Message - Details

• Message type: E = Error

• Message class: SMMSS_ALERTS - Message class for MSSQL rz20 messages

• Message number: 071

• Message text: &1% of elapsed time caused by one statement

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SMMSS_ALERTS071 - &1% of elapsed time caused by one statement ?

  The SAP error message SMMSS_ALERTS071 indicates that a specific SQL statement has consumed a significant amount of elapsed time during its execution, which can lead to performance issues in the system. The message typically includes a percentage value indicating how much of the total elapsed time was taken by that particular statement.
  Cause:
  The primary causes of this error can include:
  
  Inefficient SQL Queries: The SQL statement may not be optimized, leading to longer execution times.
  Database Performance Issues: The underlying database may be experiencing performance bottlenecks, such as locking, resource contention, or insufficient indexing.
  Large Data Volumes: The query may be processing a large amount of data, which can naturally lead to longer execution times.
  Poorly Designed Database Schema: The database schema may not be optimized for the types of queries being executed.
  Missing or Outdated Statistics: The database optimizer relies on statistics to create efficient execution plans. If these are missing or outdated, it can lead to suboptimal performance.
  
  Solution:
  To address the issue indicated by the SMMSS_ALERTS071 message, consider the following steps:
  
  
  Analyze the SQL Statement:
  
  Use transaction codes like ST05 (SQL Trace) or SE11 (Data Dictionary) to analyze the SQL statement causing the issue.
  Check the execution plan to identify any inefficiencies.
  
  
  
  Optimize the Query:
  
  Rewrite the SQL statement to make it more efficient. This may involve simplifying joins, using appropriate WHERE clauses, or breaking down complex queries.
  Ensure that the query is using indexes effectively.
  
  
  
  Check Database Performance:
  
  Monitor the database performance using tools specific to your database (e.g., Oracle AWR reports, SQL Server Profiler).
  Look for locking issues, resource contention, or other performance bottlenecks.
  
  
  
  Update Statistics:
  
  Ensure that database statistics are up to date. This can often be done using database-specific commands (e.g., ANALYZE TABLE in Oracle).
  
  
  
  Review Database Design:
  
  If the issue persists, consider reviewing the database schema for normalization, indexing strategies, and overall design to ensure it supports the queries being run.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant notes or patches that may address known issues related to this error message.
  
  
  
  Engage with Database Administrators:
  
  Collaborate with your database administrators to identify and resolve any underlying database performance issues.
  
  
  
  Related Information:
  
  Transaction Codes: ST05 (SQL Trace), ST22 (Dump Analysis), SM21 (System Log), and SE11 (Data Dictionary).
  Performance Monitoring Tools: Use tools like SAP Solution Manager or database-specific monitoring tools to keep track of performance metrics.
  SAP Notes: Regularly check for updates and notes related to performance issues in the SAP Support Portal.
  
  By following these steps, you should be able to identify the root cause of the SMMSS_ALERTS071 error and implement a solution to improve the performance of the SQL statement in question.