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The ADDM bases most of its performance recommendations on time-model statistics, the most important of which is the new DB time statistic, explained in the earlier section The Purpose of the ADDM. Time-model statistics provide a uniform way to quantify various database operations. In addition to DB time, there are other time-model statistics, such as statistics that quantify the time taken by logon statistics and hard and soft parses. You can use the new V$SESS_TIME_MODEL and V$SYS_TIME_MODEL database views to look at the time-based performance statistics. The V$SYS_TIME_MODEL view provides the accumulated time statistics for various operations in the entire database and shows the number of microseconds the database has spent on specific operations. The query in Listing 17-1 demonstrates the kind of operations for which the V$SYS_TIME_MODEL view holds time-based statistics. Listing 17-1. A Query Using the V$SYS_TIME_MODEL View SQL> SELECT stat_name, value FROM v$sys_time_model; STAT_NAME ------------------------------------------------DB time DB CPU background elaps background cpu time sequence load elapsed ti parse time elapse hard parse elapsed time sql execute elapsed time connection management call elapsed time failed parse elapsed time failed parse (out of shared memory) elapsed time hard parse (sharing criteria) elapsed time hard parse (bind mismatch) elapsed time PL/SQL execution elapsed time inbound PL/SQL rpc elapsed time PL/SQL compilation elapsed time VALUE ---------3.8422E+13 9.2726E+12 2.7506E+12 1.3335E+11 6583934097 3.0984E+11 4.7280E+10 3.7533E+13 4.3565E+10 3350540297 0 1770964950 706518501 7.0339E+11 7.3869E+12 3667675394 asp.net upc-a UPC-A . NET Control - UPC-A barcode generator with free . NET ...
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6 Apr 2005 ... Demonstrates a method to draw UPC-A barcodes using C#. ... NET 2003 - 7.87 Kb. Image 1 for Drawing UPC-A Barcodes with C# ... public void FireMyEvent( ) { if (OnMyEvent != null) OnMyEvent( ); } } The V$SESS_TIME_MODEL view is similar to the V$SYS_TIME_MODEL view and provides the same types of time statistics, but it shows a session s accumulated time for the various operations rather than information for the entire database. The AWR collects time-model statistics as part of its hourly snapshots. In addition, the AWR collects object statistics, including the usage statistics for objects, system and session statistics, statistics for high-load SQL statements, and a history of recent session activity, called the Active Session History (ASH). I discuss the AWR statistics, including ASH, in 18. asp.net upc-a Barcode UPC-A - CodeProject
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NET UPC-A Generator Controls to generate GS1 UPC-A barcodes in VB. NET , C# applications. Download Free Trial Package | Developer Guide included ... The ADDM analysis is available in the form of a series of findings, of which there are three types: problem, symptom, and informational. Here s an example of a typical ADDM finding: FINDING 1: 45% impact (11223 seconds) -----------------------------------SQL statements were not shared due to the usage of literals. This resulted in additional hard parses which were consuming significant database time. This is a problem finding, because it s accompanied by an impact estimate, which is an estimate of the amount of additional DB time caused by the problem. The findings are presented in decreasing order of importance (as defined by the impact percentages), and the sum of the impact percentages for all the findings may exceed 100 percent, as you can see in the following example: FINDING FINDING FINDING FINDING FINDING FINDING 1: 2: 3: 4: 5: 6: 34% impact (289378 25% impact (214227 23% impact (193521 16% impact (134639 6.1% impact (51563 2.1% impact (17753 seconds) seconds) seconds) seconds) seconds) seconds) The sum of the impact percentages can exceed 100 percent of DB time because the performance issues of the various findings might overlap and, therefore, encompass the same portion of DB time. asp.net upc-a UPC-A Barcode Generator for ASP . NET Web Application
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The UPC-A Code and the assignment of manufacturer ID numbers is controlled in the ... ASP . NET /Windows Forms/Reporting Services/Compact Framework ... Apart from the fact that events preclude the use of the assignment operator, events and delegates are similar. Listing 5-6 shows how an event field is bound to an event handler. Listing 5-6. Binding an Event Field to an Event Target, Using C# // create source and target MyEventSource object1 = new MyEventSource( ); MyEventTarget object2 = new MyEventTarget( ); // bind event source to target object1.OnMyEvent += new MyEventSource.MyEventHandler(object2.MyMethod); // fire event to handler object1.FireMyEvent( ); ADDM usually proposes one or more recommendations for each of the problem findings in its analysis. You may not need to follow all the recommendations to fix the problem. Each recommendation is accompanied by a quantified benefit that will result from the adoption of the ADDM recommendation, the benefit being measured in terms of the estimated reduction in DB time. Here s a typical ADDM recommendation, wherein you re asked to first analyze your application logic: RECOMMENDATION 1: Application Analysis, 45% benefit (11223 seconds) If you see multiple recommendations, which is common, it means that the benefit that accrues from adopting all the recommendations would be equal to the impact percentage noted for the relevant finding. Here s an example: FINDING 1: 34% impact (289378 seconds) The report starts with a finding that has a 34 percent impact on DB time. The finding is accompanied by the following five recommendations, each with a certain benefit. If you sum up the benefit (in percentages) that results from adopting all five recommendations, you ll notice that it s equal to the value of the finding s impact (34 percent): RECOMMENDATION RECOMMENDATION RECOMMENDATION RECOMMENDATION RECOMMENDATION 1: 2: 3: 4: 5: Segment Segment Segment Segment Segment Tuning, Tuning, Tuning, Tuning, Tuning, 13% benefit (112768 6.7% benefit (56805 6.1% benefit (51882 4.4% benefit (37330 3.6% benefit (30594 seconds) seconds) seconds) seconds) seconds) VB .NET Events VB .NET has two ways to declare events: the hard way and the easy way. The hard way relies on declaring a delegate and then using that delegate to declare an Event field. C# uses this approach. In VB .NET, the code looks like this:
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