v$log has one row for each group. v$logfile has one row for each file. There is a status column for v$log. Current means the group is being used. Inactive means the group is not in use and will not be need for instance recovery if the instance crash…
javascript 代替jqueryeach写法 // 通过字面量方式实现的函数each var each = function(object, callback){ var type = (function(){ switch (object.constructor){ case Object: return 'Object'; break; case Array: return 'Array'; break; case NodeList: return 'NodeList'; break;…
System Operations - Lab 3: Managing Storage in AWS (Linux) - 2.5 ================================================================================================================== Using this command reference. ========================================…