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如何查看Oracle用户的SQL执行历史记录？ - 数据库(内核) - 清泛网 - 专注C/...
... MINER
SQL> execute dbms_logmnr.add_logfile(logfilename=>'/oracle/archive_10g/test/test_1_138_786808434.arc',options=>dbms_logmnr.new);
--开始miner
SQL> execute dbms_logmnr.start_logmnr(options=>dbms_logmnr.dict_from_online_catalog);
--查看结果
SQL> col username format a8;
SQL> col sql_...
What are the differences between Generics in C# and Java… and Templates in C++? [closed]
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Orion EdwardsOrion Edwards
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Why shouldn't Java enum literals be able to have generic type parameters?
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Lukas EderLukas Eder
171k105105 gold badges562562 silver badges12381238 bronze badges
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An efficient way to transpose a file in Bash
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print str
}
}' file
output
$ more file
0 1 2
3 4 5
6 7 8
9 10 11
$ ./shell.sh
0 3 6 9
1 4 7 10
2 5 8 11
Performance against Perl solution by Jonathan on a 10000 lines file
$ head -5 file
1 0 1 2
2 3 4 5
3 6 7 8
4 9 10 11
1 0 1 2
$ wc -l < file
10000
$ time perl test.pl file...
How to create circle with Bézier curves?
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10 Answers
10
Active
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How to cache data in a MVC application
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answered Dec 5 '08 at 14:10
terjetylterjetyl
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Split string in Lua?
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101
Here is my really simple solution. Use the gmatch function to capture strings which contain at...
Peak signal detection in realtime timeseries data
...y you want the algorithm to adapt to these trends. I.e., if you put lag at 10, it takes 10 'periods' before the algorithm's treshold is adjusted to any systematic changes in the long-term average. So choose the lag parameter based on the trending behavior of your data and how adaptive you want the a...
String.IsNullOrWhiteSpace in LINQ Expression
...ty)
For Linq to Entities this gets translated into:
DECLARE @p0 VarChar(1000) = ''
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WHERE NOT (([t0].[Diameter] IS NULL) OR (LTRIM(RTRIM([t0].[Diameter])) = @p0))
and for Linq to SQL almost but not quite the same
DECLARE @p0 NVarChar(1000) = ''
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WHERE NOT (LTRIM(RTRIM([t0].[TypeName])) =...
What's the best way to join on the same table twice?
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Grant Robert Smith
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answered Nov 24 '10 at 14:40
Paul SasikPaul Sasik
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