The 8 byte hex value are the 2nd 8 bytes of the share being submitted to the pool. The 2 diff values are the actual difficulty target that share reached followed by the difficulty target the pool is currently asking for. The output line shows the following: (5s):1713.6 (avg):1707.8 Mh...
"\Windows\winsxs\Temp\" Folder "ADODB.Connection: Provider cannot be found" connecting Excel 2007 "Best practice" for a shared folder nested under another shared folder? "C:\Windows\SYSTEM32\cmd.exe" with return code 1 "Extend Volume" greyed out "Logon failure: unknown user name or bad ...
我们知道leaf block上的信息包括被索引的列的值和在表中相应行的rowid,所以如果我们只需要查询被索引的列上的信息,我们就无需访问index对应的表,否则就需要访问表。 我们知道CBO的Cost包括IO的cost和CPU的cost,而Oracle认为每一个single block access都是一个真实的IO,所以如果我们启动CPU的cost,访问索引的Cost就是...