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implement an event-handling system. We use the first method of event subscription processing, can achieve multi-level linkage, cat called Trigger rat Run, mouse run aroused people awake, the existence of the event is to make up for the lack of delegates, the event is the sender of the event (the object that triggers the event) and the event recipient (the method of handling the event) is associated with a

with the callout mechanism. A) Make sure the initialization parameters shared_pool_size and java_pool_size is equal to or greater than 96M and 80M, I . E.,shared_pool_size=96mjava_pool_size=80mb) Check to ensure, the JVM objects in the SYS schema is valid. You can check the here logging into the database as SYS and running the following query:SELECT owner, status, Count (*) from dba_objectsWHERE object_typ

zip in the $ORACLE _home/sqlj/lib directory.3) The 11.1 version of the database contains the UTL_DBWS PL/SQL package in the SYS schema by default, but the 11.2 versio N does not has this loaded automatically. If you is using the the 11.2 version, you can run the appropriate PL/SQL PAC Kage body and specification in order to install the core PL/SQL code into whatever schema you wish to use. the code Used for the example would assume that the SYS schema is used, as per the default installation fo

not send unhealthy information ah. We are seriously encouraging him to call 400 call customer service.The classmate dialed 400 calls, questioned their Renren account why was blocked.Sell Wei G of customer service sister, said very silent, said they are buy Wei G, not renren.The classmate said, but everyone online left is your phone AH.Customer service sister said, they also do not know, today has received several advisory telephone, asked why they pu

Today, JavaScript has become the core of Web page editing. Especially in the past few years, the Internet has witnessed the emergence of a large number of JS libraries in the areas of spa development, graphics processing, and interaction.If you deal with the first time, many people will think that JS is very simple. Indeed, for many experienced engineers, or even beginners, there is virtually no obstacle to achieving basic JS functionality. But JS's r

Make a linux executable program into a serviceWhen the linux system is started, we can see that many service programs are started one by one (that is, the lines with blue [OK ), these programs run in the background play an important role in using computers. The programs run in this way have the following features:Startup, shutdown, and background runningUse servi

the next few months, we're going to discuss the following topics (or other unlisted topics) to do a il2cpp in-depth tutorial series. The topics currently being discussed are: 1. Basics-Toolchain and command line parameters 2.il2cpp Generating Code Introduction 3.il2cpp Generating code debugging Tips 4. Method invocation Introduction (general method invocation and virtual method invocation, etc.) 5. Implementation of common code sharing 6.p/invoke (Pl

When the linux system is started, we can see that many service programs are started one by one (that is, the lines with blue [OK ), these programs run in the background play an important role in using computers. The programs run in this way have the following features:Start and shut down (nonsense! Shut down and run ???)Background runningUse service commands to control or view the running status of the corresponding programWell, that's good. How can we make