etl workflow process

The main indexes of this series of articles are as follows: I. ETL Tool kettle Application Analysis Series I [Kettle Introduction] Ii. ETL Tool kettle Practical Application Analysis Series 2 [application scenarios and demo downloads] Iii. ETL Tool kettle Practical Application Analysis Series III [ETL background

BOS Project Note 9 daysToday's content arrangement:1. Workflow Concept2. Installation process designer plug-in (Eclipse)---- design Flowchart3. Create a activiti Database ( table)4 . activiti API operation Flow1. Workflow Concepts Work Flow (Workflow) , is " automation of part or whole of a business

involves external calls (SHELL, stored procedures, etc.), with filter filter,Type converter (Express), Listener (Lookup), dispatcher, stored procedure call, connector component (join), and so on. The use of variables and parameters in ETL is more difficult.Some principles: try to use the WHERE clause in SQL instead of the filter. Do not use the Lookup,join component for large tables. The data source uses the bulk method, and so on. Can look at the pr

Brief introduction Data integration is a key concept in the Data warehouse. The design and implementation of the ETL (data extraction, transformation and loading) process is an extremely important part of the Data Warehouse solution. ETL processes are used to extract business data from multiple sources, clean up data, then integrate the data, and load them into

warehouse in an important place and build the foundation of the data warehouse! The ETL process is generally considered in the following four aspects: (1) Use of the preparation area (ODS) When building a data warehouse, if the data source is on one server and the data warehouse is on another server, the data warehouse must be constantly updated considering that the data source is frequently accessed

. NET Open-Source Workflow RoadFlow-Process Design-process step settings-policy settings, workflow roadflow- Policy settings include the current step's flow mode, handling personnel, and return policy settings. Transfer Type:When there are multiple steps after the current step, this type of selection can determine the

In CRM 2013, workflows are divided into two classes: asynchronous workflows and real-time workflows. An asynchronous workflow relies on a Windows service: Microsoft Dynamics CRM Asynchronous Processing service, which must be running on the CRM server, otherwise the asynchronous workflow will not run. Asynchronous workflows may not be executed immediately, and if you want to execute the

default, Python uses ASCII encoding as follows:Python-c "Import sys; Print sys.getdefaultencoding () "ASCIIand when Python converts between encodings, Unicode is used as an "intermediate encoding", but Unicode is the largest So long, so here when trying to put ASCII The encoded string is converted into " Intermediate Encoding the Unicode due to exceeding its range, the above error has been reported. 2. Solutions1) First: Here we will change the python default encoding mode to utf-8, we can

Workflow learning-Activiti five steps of process variables, workflow activitiI. Preface In the previous article, we introduced the process instance startup and query, and the task handling and query. In this article, we will introduce the process variables in activiti. Ii.

BI Development process and ETL introduction BI Development process1. Building Dimension-Fact model2. Build data warehouses (dimensions, facts) based on dimension-fact model3. Data extraction (ETL)4. Analysis model topics for building sales information5. Build report analysis, instrument panel The BI Business intelligence system, according to the enterprise ne

. NET Open-Source Workflow RoadFlow-Process Design-flow condition settings (Routing), workflow roadflow- When there are multiple steps after a step, you can set it to automatically determine which steps the flow direction is based on the setting conditions. This is also called a route. There are no separate routing steps for roadflow to set the conditions. Yo

Example Demo using rdiframework.net Framework's Workflow componentmake business process definition - Leave application process-webReference article:Rdiframework.net-based on. NET rapid Information System development Framework-Series catalogueRdiframework.net━. NET rapid Information System development framework-Introduction to

example demonstrates how to use the rdiframework.net Framework's Workflow componentmake business process definition - Leave application Process　　Reference article:Rdiframework.net-based on. NET rapid Information System development Framework-Series catalogueRdiframework.net━. NET rapid Information System development framework-Introduction to

The two are controversial and the differences are becoming more and more subtle, but it is necessary to clarify.The concept of workflow is generated earlier than business process management. It originated from office automation and can be traced back to the end of 1960s and the beginning of 1970s. It emphasizes the automation of business processes,Therefore, it is used more in business processes that do not

spring configuration file and use The process engine configuration object provided by spring:L provide data source and transaction managerL Create process engine objects using the process engine factory beans provided by SpringL Read the spring configuration file, create a spring Factory, get the object from the factory5. Implementation of

The shark workflow engine startup process is a more complex process, based on the Processstart method of the Jspclientutilities class, code analysis is as follows:public static void Processstart (Sharkconnection SC, String mgrname) throws Exception {if (Debug)System.err.println ("#_processStartName_ #");try {if (!isprocessrunning (SC, mgrname)) {Wfprocessmgr mgr

. Effects such as:　whether to archive: whether the form data is deposited into the archive database after this step is sent so that it can be queried for approval of the process at a later time, independent of the Business data table.Form : a form that is bound to this step, which can be a form that is designed by the form designer, or a form that you write by yourself. Applications that exist in the application library can be approved as a

Button settings are the actions that the processor who configures the current step can perform, and each button has a corresponding execution script (JavaScript script).Select the button you want for the current step from the list of buttons on the left.Note: If the final step of the process is to configure the Finish button instead of the Send button.button on the left list data from: Process Management-bu

An event setting is a set of actions (the event is a server event) to be performed before or after the current step is committed or returned.The event format is: DLL name. The name of the namespace. The class name, the method name, where parentheses and arguments are not required, and the parameters associated with the current process instance are automatically processed.The parameter is: an instance of the RoadFlow.Data.Model.WorkFlowCustomEventParam

1. Create a Task List page--Query the list of tasks owned by the user based on nickname as assignee2. Add the handle button after the task3. Click the handle button, the process box appears, which shows detailed information about the task, the details of the customer in this example4. Create a specific Task table page for each business object, pass in the business object type ClassType, its ID (objId), and the task ID, and the Formkey5. In the