To dump for Global Tag 74X_dataRun2_Prompt_v2

conddb list 74X_dataRun2_Prompt_v2 |grep EcalTimeCalibConstantsRcd conddb list EcalTimeCalibConstants_v01_express conddb dump 3fb14d460c8deb01747bb904b62208bbf1431b0e > EcalTimeCalibConstants_v01_express-253984.dump