如何在sqlplus中隐藏或隐藏日志文件(spool文件)的sql查询输出

I’m doing performance testing for my application. I gathered around 100 queries from the application and wanted execute the queries exactly as it's being executed through the application. As some quires are giving more than 1000 records, I wanted to hide the sql output in log file. I just wanted to collect Elapsed Time and Explain Plan.I’m doing performance testing for my applicatio