Why is IDB2 BTDSQLTX report still empty?

Products

• SYSVIEW Performance Management Option for DB2 for z/OS
• Database Management for DB2 for z/OS - Performance Suite
• Database Management for DB2 for z/OS - SQL Performance Suite
• Insight Performance Monitor for DB2 UDB for z/OS

Issue/Introduction

After  starting the collector with IFCID 317, the BTDSQLTX still empty. Why? What's missing?

Environment

Release : 20.0

Component : CA SYSVIEW Performance Management Option for DB2 for z/OS

Resolution

Without supporting document like the job output, an empty report is a sign of empty input file.