CRITICAL
Rule Definition
SQL Queries that do not use table indexes are extremely dangerous for the application's performance.
Indeed, each execution of the query will result in a full table scan which is extremely time consuming especially if the table contains an extremely large amount of data (XXL table).
Remediation
Try to use indexed columns in WHERE clauses. If it is not possible, then create a secondary index for these columns.
Reference
Enhancing the Quality of ABAP Development
Meijs - Krouwels - Heuvelmans - Sommen
SAP Press
ISBN 1-59229-030-2
Related Technologies
Technical Criterion
Efficiency - SQL and Data Handling Performance
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