![]() ![]() setAdapter( "adapter:dBase_III") įixDates = new SaxonXSLTOperation( "Fix Dates", ContentType. Create all the objects required for the pipelineĬonvertToXML = new ConvertToXML( "Convert to XML", getEnvironment()) ĬonvertToXML. Here's what a portion of the code might look like for the standard Java deployer: Stylus Studio® contains an integrated Java IDE, Following the instructions in the generated code will let you run it. Answer a couple of questions,Īnd code is created. Generating ETL Java CodeĬreating the core of a service is as simple as pressing the button. Click on the output triangle of the last step, and set the "Copy to URL" property to ourĪnd now we can execute our XML pipeline in the simulator it by doing XMLPipeline|Execute.Connect the output triangle from each to the input circle of the next.Drag the four XSLT files from the File Explorer to the canvas.How to Assemble the Individual ETL Steps into a Pipeline Use the XML Pipeline to automate the task. But rather than run all of those steps one-by-one, we should Transform step into the etl-target.rdbxml Loading Our ETL Results into the Data RepositoryĪt this point, loading is a just matter of writing the output of the last XSLT We saved earlier on the right, and draw linesĬonnecting the corresponding fields. We use the output from the third step on the left, and the Map the data to the new schema įor the last step above, we can use the XSLT mapper to generate the code for us.Assign the manager based on inside or external sales.Convert the dates from CCYYMMDD into CCYY-MM-DD (the " ISO 8601" format).Would use different technologies or methods.) In a production ETL operation, likely each step would be more complicated, and/or In one large XSLT file, we're breaking it into steps for demonstration purposes. We're going to use a series of XSLT transforms to modify this. (For more details on SQL/XML, see the SQL/XML Tutorial. Switch to the UPDATE tab, and drag Employees again, but this time choose Since we're also going to use this later to insert data into the database, Open the Northwind databaseĪnd drag the Employees table onto the canvas, and choose "SELECT (SQL/XML)."įrom the menu. Now, you should see the schema of your database. Choose Microsoft SQL Server as the database type.Just the defaults are fine for this demonstration. To build our map, we'll use SQL/XML, which gives us any arbitrary subset We're using the standard demonstrationĭatabase that comes with SQL Server, called Northwind. While we are at it, let's find out what our target schema is. The result of this extraction will be an XML file similar to this: The file:///c:/etl/new_empl.dbf is just the location of the file we want to use as input. The dBase_III portion choose the converter there are many converters available including some Our URL inĪdapter: dBase_III? file:///c:/etl/new_empl.dbfĪdding the adapter: prefix enables the converter engine. The URL that is used shows that anywhere XML is used, we can useĪlso use any data source that we have an converter for. As a side-effect, it would be nice to get a report of data loaded.Įxtracting Data from the Legacy ApplicationĮxtracting the data into something usable is very simple.ĭoing just File|Open, selecting the new_empl.dbf file,Īnd choosing the dBase III converter will transform the data into XML.The load step will take the resulting file and send it to SQL Server.The transform step will change the date format into standard ISO dates, split the name into first and last names, and assign the appropriate manager based on whether the employee is being assigned to inside sales or the external sales force.The extract step will take the data from the dBASE III file and convert it into a more usable format - XML.Our steps will be then, to Extract, Transform, and Load. XSLT transform that reads a table and displays it as HTML, But the employee data is stored in Microsoft SQL Server. Uses a recruiting tool written using a dBase- or FoxPro-likeĭata structure. In our ETL development example, the human resources department ![]() In order to demonstrate this, we'll use a use-case that is BI (Business Intelligence) (see also EII).Process is run over and over, as new data appears in the source Some way to some convenient schema, and then insert it intoĪ common use is for data warehousing, where regular updatesįrom one or more systems are merged and refined so that analysisĬan be done using more specialized tools. Take information from one or more sources, normalize it in ![]() Play the video ETL - Extract, Transform, Load ETL Defined (or "What Is ETL?")Įxtract-Transform-Load ( ETL), is a process that is used to
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