downstream promotions

will discuss the "serialization" point. Let's take a closer look at how multiple read and write SQL is performed in a single service. is a service services in the upstream and downstream and services in detail, the details are as follows: (1) Upstream of the service is a number of business applications, upstream initiates the request to the same data concurrently read and write operations, the above example in the concurrency of a uid=1 balance modif

"serialization" point. Let's take a closer look at how multiple read and write SQL is performed in a single service. is a service services in the upstream and downstream and services in detail, the details are as follows: (1) Upstream of the service is a number of business applications, upstream initiates the request to the same data concurrently read and write operations, the above example in the concurrency of a uid=1 balance modification (write) o

"serialization" point. Let's take a closer look at how multiple read and write SQL is performed in a single service. is a service services in the upstream and downstream and services in detail, the details are as follows: (1) Upstream of the service is a number of business applications, upstream initiates the request to the same data concurrently read and write operations, the above example in the concurrency of a uid=1 balance modification (write) o

"serialization" point. Let's take a closer look at how multiple read and write SQL is performed in a single service. is a service services in the upstream and downstream and services in detail, the details are as follows: (1) Upstream of the service is a number of business applications, upstream initiates the request to the same data concurrently read and write operations, the above example in the concurrency of a uid=1 balance modification (write) o

Document directory 　 [Customer relationship management] [stakeholders] 1/upstream customers: Supplier _ (commodity) 2/downstream customers: Item Sales _ major customers Item Sales _ Retailers3/sales department: Manager Marketing Personnel4/product: Ordinary products Other products[Requirement Description] 1. Archive Management 1. Archive 1. Upstream customer archive 1. Supplier basic info. 2. Maintain association information between customer and co

"serialization" point. Let's take a closer look at how multiple read and write SQL is performed in a single service. is a service services in the upstream and downstream and services in detail, the details are as follows: (1) Upstream of the service is a number of business applications, upstream initiates the request to the same data concurrently read and write operations, the above example in the concurrency of a uid=1 balance modification (write) o

When you write a stored procedure, when you use dynamic SQL, the variable assignment is truncated when you debug.The key code is as follows:The effect of the implementation is to first the upstream and downstream to make a comparison of SQL statements and related parameters deposited Rkdm_data_void_rule,After executing the stored procedure, insert the results from the two SQL statements into another result table rkdm_data_void_chk_rest.To build a tabl

] on the Controller is overwritten. Note, however, that the [Route] applied to the Controller must be prefixed with {action}, otherwise it will be thrown "Routedata must contain an item named ' Action ' with a value of a non-empty string." Error The [Route] applied on the action is not added, because {action} is the current action.[Routeprefix ("promotions")][Route ("{action=index}")]The default route is defined above, and the default value for {actio

-level default route will be used.1 [Routeprefix ("Promotions")] 2 [Route ("{action=index}")] 3 public class Reviewscontroller:controller 4 {5 //EG.: /promotions 6 Public ActionResult Index () {...} 7 8 //EG.:/promotions/archive 9 public ActionResult Ar Chive () {...} $//eg.:/promotions/new12 publ

ActionResult ShowSpotlight (){...} 7 8... 9} copy the default code route. You can also use the [path] feature at the Controller level to take the Action method as a parameter. This route will be applied to all Action methods in the Controller. Unless the Action method uses a specific [Route] feature, the Controller-level default route will be used. Copy code 1 [RoutePrefix ("promotions")] 2 [Route ("{action = index}")] 3 public class ReviewsControlle

Learning design patterns have been a long time, in fact, has been knocked over once, but the old feel that nothing has been learned, not enough understanding, and now take advantage of the reconfiguration of the computer room, and then again, it is not too late. In fact, after knocking on the computer room, look at the mode, in fact, it was difficult to understand, it is difficult to read the code a glance can be read, while a little feeling, early harvest it. Simple Factory mode: Simple factory

on the change in passenger flow. In order to solve some problems in fuzzy control, the new invention applies the neural network control method to elevator control, without the need to establish an accurate mathematical model, and can provide accurate control policies to reduce the waiting time, reduce the anxiety of passengers, save energy, and reasonably and effectively schedule the optimal operation of the elevator. (2) understand the concepts of the uplink peak mode, the downlink peak mo

multiple ISPs and truly becomes a global network. The side effect is the Internet route explosion. There are about 60000 routes on the Internet, which is still the number after "aggregation. To configure BGP, you need to have a good understanding of user requirements, network conditions, and BGP protocols. Also, you need to be very careful that BGP runs at the core. Once an error occurs, the loss may be huge! To adapt to One-to-multiple multi-point transmission applications in the Internet, suc

Asypolicric Digital Subscriber Line (Asymmetric Digital user loop) is a new data transmission method. It is called because of asymmetry between upstream and downstream bandwidth. It uses the frequency division multiplexing technology to divide common telephone lines into three relatively independent channels: telephone, uplink and downlink, thus avoiding mutual interference. Currently, Ethernet (the main part of the Internet, the expansion of star net

)Service Center (Personal Open Source Address: http://git.oschina.net/chejiangyi/Dyd.BaseService.ServiceCenter) Company status quo: 1) there is a service coupling between projects that calls each other. Currently, the dll method is used for calling, but dll update errors and management may occur, leading to low efficiency for developers. 2) the company is eager to adopt the microservice/soa architecture to strip the business coupling of the project and simplify the management of upstream and

to each other. A global, extensive internet is an instance of the BGP process of routing between multiple ISPs. The advent of BGP has caused great changes in the Internet, and it has connected many ISPs organically and become a global network. The side effect is the Internet routing explosion, and now the Internet route is probably 60,000, which is the number after the "aggregation". Configuring BGP requires a particular understanding of user needs, network status, and BGP protocols, as well as

Directshow filter must be able to support one of several protocols known as the Transport Protocol (transports). When two filter is connected, they must support the same transport protocol, otherwise they will not be able to exchange data. Typically, a transport protocol requires a PIN to support a specific interface, and when two filter is connected, the other PIN calls this interface of the PIN. Most DirectShow filter stores media data in main memory and submits the data to another filter via

response time of the primary business logic. Timing tasks, in the main business logic coupled to update the code of other systems is not OK, the external system only a few rows, if you want to update 100 external systems, when to deal with it? Doing this asynchronously with timed tasks seems like a better solution. This is true, but how often does the task execute? Every 1 minutes? Every 10 minutes? Of course, we can set this frequency according to business needs, at first glance

is obtained and then passes through each layer of the system. Process Identity: local resource access and downstream calls are performed using the current process identity. The feasibility of this method depends on the boundaries to be crossed, because the process identification must be recognized by the target system. This requires calling in either of the following two ways: In the same Windows Security Domain Cross-Windows Security Domain-Use TRUS

4G TDD-LTE and FDD-LTE two models, do you understand? At present, there are two 4G standards based on LTE, namely lte fdd and lte tdd (China is used to call lte tdd TD-LTE, both standards are based on different branches of LTE, with a similarity of more than 90%. Next we will use traffic as an example to analyze the differences between the two: I. TD-LTE saves resources and FDD is fast Lte fdd (Frequency Division Duplexing, FDD) uses Frequency duplex, TD-LTE (Time Division Duplexing, TDD) is