《铁路运输安全保护条例》规定:铁路线路安全保护区的范围,从铁路线路路堤坡脚、路堑坡顶或者铁路桥梁外侧起向外的距离为:城市市区,不少于()米。
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中国最早的纸币的名称是交子()
A. 正确
B. 错误
Your database is in NOARCHIVELOG mode. The database has three online redo log groups, and each group contains three online redo log members. The online redo log members are stored across three hard disks, E, F, and G, respectively. Hard disk G crashed while the LGWR background process was writing redo information to the online redo log files. What effect will this crash have on the database?()
A. The database will operate normally without generating any redo.
B. The database will hang, and you must shut down and restart the instance.
C. The database will crash, and you must recover the database from the point of failure.
D. The database will operate normally and will generate minimal redo for the tables created with the NOLOGGING clause.