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In earlier versions of Oracle, the query was printed near the top of the 10053 trace file This moved to the bottom in the later versions of 92 and 101, so I have listed here the query I used The script to create the data is big_10053sql in the online code suite You will notice that the table names give an obvious clue about the intent of the SQL, and that I have put the tables in the order that I think Oracle probably ought to visit them I have also followed a convention in the where clause that each predicate should read column_i_want = value_i_know This is obviously the case with lines like the following: ggpsmall_num_ggp between 100 and 150 It is less obvious, despite my intention, that this should be true on lines like this one: gpid_ggp = ggp. zxing.net qr code reader . NET QR Code Reader & Scanner for C#, VB.NET, ASP.NET
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NET developers solve this problem, RasterEdge designs this powerful and multi- functional barcode reading and scanning SDK. Using this VB . NET QR Code ... small_vc_c) from greatgrandparent grandparent parent child where /* and and /* and and and /* and and and and ggpsmall_num_ggp between 100 and 150 */ gpid_ggp = ggpid gpsmall_num_gp between 110 and 130 */ pid_gp = gpid pid_ggp = gpid_ggp psmall_num_p between 110 and 130 */ cid_p = pid cid_gp = pid_gp cid_ggp = pid_ggp csmall_num_c between 200 and 215 ggp, gp, p, c. There is a difference in the way destructors behave in managed types in an inheritance hierarchy. You may recall that for native class hierarchies, it is usually recommended that destructors be virtual. In classic C++, using virtual destructors meant that all destructors in the inheritance hierarchy would be called. Using nonvirtual destructors prevents this from happening. In C++/CLI, destructors, whether declared virtual or not, are called up the inheritance hierarchy. This behavior change reflects a general trend in the language to make life easier by making almost universally recommended customs mandatory. Listing 8-16 demonstrates this behavior. Listing 8-16. Calling Destructors // destructors_and_inheritance.cpp using namespace System; ref class Base { public: Base() {} ~Base() { Console::WriteLine("~Base"); } }; ref class Derived : Base { public: Derived() { } ~Derived() { Console::WriteLine("~Derived"); } }; // The destructor will be called at the end of main. int main() { Derived d; } The output of Listing 8-16 is ~Derived ~Base since the base class destructor was implicitly invoked. The most derived destructor always executes first, just as it does in C++. Begin typing the name of the desired contact. When the desired contact appears, click the Trackpad. Choose whether to invite the contact by PIN or e-mail. The one thing that the trace file does not report is an image of the final execution plan; you have to infer what it would look like by analyzing the contents of the identified join order. To make life a little easier, I have also run the query through dbms_xplan so that you can see it here before you begin reading the trace file. You can get a similar plan (without the predicate information) in the trace file by setting event 10132 at the same time as you set event 10053. Slightly counterintuitively, Oracle 10.1.0.4 picked a path that didn t quite follow the obvious order implied by the table names. And at run time, the path that Oracle took did use marginally less resources on its chosen plan than it did on the plan I was expecting. zxing.net qr code reader Open Source QRCode Library - CodeProject
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