Oracle Log Analyzer Tool Logminer use
1. Set Date format
Alter system set nls_date_format= ' Yyyy-mm-dd hh24:mi:ss ' scope=spfile;
Select To_char (sysdate, ' Yyyy-mm-dd hh24:mi:ss ') from dual;
2. Add Supplemental Log
If the database needs to use Logminer, it should be added, only after this log is added to capture DML
ALTER DATABASE ADD Supplemental LOG DATA (PRIMARY KEY, UNIQUE INDEX) COLUMNS;
3. Open Archive
Alter system set log_archive_des
static void Main (string[] args){#region Creating an arrayConsole.Write ("Please enter the length of the array");int[] numbers = new Int[int. Parse (Console.ReadLine ())];for (int i = 0; i {Console.Write ("Please enter the array" + (i + 1) + "item:");Numbers[i] = Int. Parse (Console.ReadLine ());}Console.clear ();#endregion#region sort the number of groupsfor (int i = 0; i {for (int j = i+1; J {if (Numbers[i] > Numbers[j]){int temp = Numbers[i];Numbers[i] = Numbers[j];NUMBERS[J] = temp;}}}Consol
attributes defined in the DFA's state are also used by the DFA and Index to facilitate state use.
Second, NFA conversion to DFA
2.1 Subset Construction method
The NFA is converted to a DFA, and a subset construction (subset construction) algorithm is used. The process of the algorithm is similar to the NFA matching process mentioned in section 3.1 of the C # lexical Analyzer (iii) regular expression. In the NFA matching process, use is a state of
Query Analysis | Using shortcut keys
ALTER procedure Sp_getfields
@tablename varchar (100)
As
DECLARE tmpcursor cursor FOR
Select name from syscolumns where id = object_id (@tablename)
Open Tmpcursor
DECLARE @fieldname varchar (50)
DECLARE @sqlstr1 varchar (250)
DECLARE @sqlstr2 varchar (250)
Set @fieldname = '
Set @sqlstr1 = '
Set @sqlstr2 = '
FETCH NEXT from Tmpcursor into @fieldname
While @ @fetch_status = 0
Begin
If Len (@sqlstr1) Set @sqlstr1 = @sqlstr1 + @fieldname + ', '
Else
Set @sqlst
Calculator is a lot of programming beginners have done, starting from the simplest console program, input values, input operators, and then enter a value, to get a result. The interface is basically modeled on the Windows operating system calculator, through the button input values and operators, and then give the results of the operation. Can you directly enter an expression, or you can calculate several expressions, or select a part of an expression to calculate, if the input error can indicat
that may be used when querying Key: The index that was actually used when querying Key-len: Length of index field Rows: Number of scanned rows Extra: Description and description of the implementation Through the analysis of explain, it is confirmed that in the above example, the full table scan of the sales table results in inefficient, by creating an index on the sales table: www.2cto.comSQL codeCREATE INDEX index_sales_year on sales (year); After the index is created, the query statement is p
With the SPA, you can play specific types of changes depending on the type of change (such as initialization of change, optimizer statistics refresh, and database upgrade)SQL or the entire SQL payload, and then generate a comparison report that helps you evaluate their impact.In the version number prior to Oracle Database 11g, I had to capture all the SQL statements and execute them by tracing,Then get the run plan-this is a very time-consuming and error-prone task. The new version number, we do
); } } //here, the first character has not yet captured the corresponding parsing result, so exit if (!matched) { Break; } } //return the length of the invalid excess//if we ' re just parsing//Otherwise, throw an error or Return tokensIf the conversion returns the length of the selector that did not match successfully, the token is returned, and an error is thrown. Return parseonly?SoFar.length:soFar?Sizzle.error (selector)://Cache The TokensTokencache (selector,
After making the analyzer report, you want to be able to copy directly to other machines (unable to connect over the network)The method is simple:1. Enter the analyzer's Database server Settings page to find out which system database is connected2. Back up the system database3. Cubes used to back up the report4. Restore the system database and cubes to a new machineNote: If you can connect directly through the network, you can directly connect to the
A notable feature of the prediction-based Grammar analyzer is to define a non-Terminator as a parsing function (method). When a non-terminator can be derived as another non-Terminator, recursively call the parsing function. One disadvantage of this method is that it is difficult to handle the situation that requires backtracking. We will analyze it in detail later. The last time we studied the parsing of individual characters such as Cr, lf, and htab,
In the previous article, we introduced how to use the Intel compiler to improve program performance by improving the execution efficiency after program compilation. However, to improve the software performance, you can not only improve the compilation and Execution Code, but also analyze the program performance to identify performance bottlenecks and focus on optimization. Intel vtune visual performance analyzer is an analysis tool provided by Intel f
interest rate is more than the equivalent of the principal.
Mortgage Analyzer
Software source Open source, GitHub download Address: Despositor Source: Visual Studio C#.net, Welcome to download.
Support Features
1) Support the configuration of loan information; 2) support two types of loan, repayment situation and monthly details: principal, principal, interest, interest rate; 3) Large repayment, currently only support a large repayment method: Short
Error opening heap dump 'com. ZTE. Mobile. Sync. hprof'. Check the error log for further details.Error opening heap dump 'com. ZTE. Mobile. Sync. hprof'. Check the error log for further details.Unknown hprof version (Java profile 1.0.3) (Java. Io. ioexception)Unknown hprof version (Java profile 1.0.3)
ThehprofFile you get from Android has Android specific format. You shoshould converthprofFile take from Android OS into standardhprofFormat. For this you can usehprof-convTool that is locatedAn
Reprinted please indicate the source: http://blog.csdn.net/u012027907
Sometimes we often count the number of words in an article. At this time, we need a word frequency analyzer to solve this problem.
Basic Idea:
First save the string in the file or input by the user, and then scan backward from the first character. When a letter is encountered, add it to a string first, and then scan backward, if the character string is still a letter, it is connecte
This article introduces a small open-source project: AAC format analyzer. The full name of AAC is Advanced Audio Coding, which is a widely used Audio encoding format on the Internet and the best Audio encoding format at present. A large part of existing videos on the Internet use AAC for audio encoding. Developed Using MFC of VC 2010. Faad2, an open source decoder of AAC, was used during development. Currently, the analysis function of the software is
This article introduces a small open-source project: JPEG analyzer. The full name of JPEG is Joint Photographic Experts Group (combined with the image Expert Group), which is the most widely used image encoding standard today. My project is not large and can be used to learn JPEG coding standards. It works better if you look at the source code. It supports decoding JPEG data into pixel data (YUV or RGB ). Output parameters such as DCT coefficients are
This article introduces a small open-source project: TS Encapsulation Format analyzer. TS stands for MPEG 2 Transport Stream (MPEG2 transmission Stream), which is widely used in broadcast and television systems, such as digital TVs and IPTV. My project is not large and can be used to learn the TS Encapsulation Format Structure. In addition, it supports separating video streams and audio streams in TS. And the timestamp, PTS, and DTS of the output TS p
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