18. Execution Control18.1 Using X_START as a Front End to X_RUN18.2 The X_RUN Command18.3 X_RUN Parameter Summary18.4 X_RUN Parameter Details18.5 Permanently Specify X_RUN Parameters18.6 Database Connections18.7 The .XQ* Files18.8 Lock Timeout18.9 User Instructions for Microsoft Exception or Dr Watson