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解决：ORA-00054:资源正忙,要求指定NOWAIT - 数据库(内核) - 清泛网 - 专注...
...logon_time from v$locked_object t1,v$session t2 where t1.session_id=t2.sid order by t2.logon_time;
结果：
username sid serial# logon_time
SA 158 15184 2014/12/4 14:55:59
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3：kill 所有占用资源的会话
命令形式：alter system kill session 'sid,serial#';
占用test_1的资...
AngularJS : Initialize service with asynchronous data
...pp.
This is a slight enhancement over Martin's solution, which deferred fetching the config until after the document is ready. As far as I know, there is no reason to delay the $http call for that.
Unit Testing
Note: I have discovered this solution does not work well when unit-testing when the ...
How to round up a number to nearest 10?
...d up, it rounds to the nearest 10. To solve this, add +5 to your number in order to round up. If you want to round down, do -5.
So in code:
round($num + 5, -1);
You can't use the round mode for rounding up, because that only rounds up fractions and not whole numbers.
If you want to round up to ...
Timeout jQuery effects
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Uses for Optional
...sirable" ways (e.g. as method parameters, in collections, in constructors, etc.) if that really is not intended usage?
– skomisa
Feb 20 '15 at 0:33
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How would Git handle a SHA-1 collision on a blob?
...in the sense that the git object network generates a DAG that is not fully ordered, so while different repositories will agree about what is "earlier" in the case of direct ancestry, if the object came through separate and not directly related branches, two different repos may obviously have gotten ...
Putting uncommitted changes at Master to a new branch by Git
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Create timestamp variable in bash script
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In order to get the current timestamp and not the time of when a fixed variable is defined, the trick is to use a function and not a variable:
#!/bin/bash
# Define a timestamp function
timestamp() {
date +"%T" # current time
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ping response “Request timed out.” vs “Destination Host unreachable”
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What is the difference between user and kernel modes in operating systems?
...ttp://wiki.osdev.org/Global_Descriptor_Table
the segment registers CS, DS, etc., which point to the index of an entry in the GDT.
For example, CS = 0 means the first entry of the GDT is currently active for the executing code.
What can each ring do?
The CPU chip is physically built so that:
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