mongodb etl

In the data warehouse project, ETL is undoubtedly the most tedious, time-consuming, and unstable. If the data source and target are both Oracle and meet certain conditions, you can use the oracle tablespace to improve ETL efficiency.To use a tablespace, the following conditions must be met:The source and target databases must both be larger than 8i;Ø for versions earlier than 10 Gb, the source and target da

Kettle is an open-source ETL Tool written in Java. It can be run on Windows, Linux, and Unix. It does not need to be installed green, and data extraction is efficient and stable. Business Model: there is a large table in a relational database, which is designed as a parity database storage. Each database has 100 identical tables, each table stores 1000 million data records, and the fields are switched to the next table. This data needs to be synchron

the "flat file Connection Manager Editor" dialog box, type sample flat file source data. Click Browse ". In the open dialog box, browse and find the sample data folder, and then open the samplecurrencydata.txt file. By default, the sample data of the tutorial is installed in the c: \ Program Files \ Microsoft SQL Server \ 90 \ samples \ integration services \ tutorial \ creating a simple ETL package

In the past, we used the underlying C-API of each database as wrapping to realize the function of data import and export between several heterogeneous databases. However, the code is complex and it is inconvenient to open source. In the afternoon, a simple data extraction program was written in Java to port the MySQL database to Sybase ASE. Put it open-source, put it on: http://code.google.com/p/jmyetl/ top. I originally named myetl, and someone applied for it on sf.net. Then I added a J to it.

ETL scheduling development (4) -- file subroutine loading through FTP The most basic function of the ETL tool is to load files on the remote server. The following applet obtains files on the remote server in binary mode: #! /Usr/bin/bash # created by lubinsu #2014 source ~ /. Bash_profilefilename = $6 srcdir = $4 descdir = $5 ftpip = $1 ftpusr = $2 ftppwd = $3 # get filesftp-I-in The input parameters

In this section, we mainly talk about my game transaction Data Analysis Project ETL (data extraction, loading, conversion) exactly how to do. First of all, the next source system, because our main trading station server is not in the company, so can not directly from the source system directly extracted data. In fact, we already have a simple data analysis system, but this is the previous people do, not using sqlserver2005 bi platform to do, but dire

The kettle of ETL tools extracts data from one database into another database: 1. Open the ETL folder, double-click Spoon.bat start Kettle 2. Resource pool selection, Connaught no choice to cancel 3. Select Close 4. Create a new transformation 5. Configure the required database 6. The data table that needs to be extracted, with the table input to get 7. Select the database and table

Tags: ETL kettle jdbc Oracle RAC1 problem Phenomena:Previously done Kettle connect an Oracle database for table extractionThe table input information for the script is as follows:Error message in the table input report when executing (script uploaded to Linux machine with sh command) :But in the machine with the Sqlplus command login can be successful:2 resolution process:After the problem, the first contact with the source data system manufacturers t

ETL is responsible for the distribution, heterogeneous data sources such as relational data, flat data files, such as the extraction of the temporary middle tier after the cleaning, transformation, integration, and finally loaded into the data warehouse or data mart, to become the basis of online analytical processing, data mining. If the frequency of data conversion or not high requirements can be manually implemented

See you share a lot of Hadoop related content, I introduce you to an ETL tool--kettle.Kettle is an ETL tool of Pentaho company Open source, like Hadoop, is also Java implementation, the purpose is to do data integration when the data extraction (Extract), conversion (Transformat), load (loading) work. There are two script files in Kettle, transformation and job,transformation complete the fundamental transf

Component As ScriptComponent) ParentComponent = Component End Sub End Class Public Class Variables Dim ParentComponent As ScriptComponent Public Sub New (ByVal Component As ScriptComponent) ParentComponent = Component End Sub End Class 10) Open the "target" Data Stream Create a ing 650) this. width = 650; "height =" 645 "border =" 0 "src =" http://www.bkjia.com/uploads/allimg/131229/1U9532619-8.gif "alt =" clip_image009 "title =" clip_image009 "style =" border-bottom: 0px; border-left: 0px; bor

Different map service platforms have diverse requirements on map file formats, and files used by ArcGIS are difficult to be used on other platforms, therefore, a format conversion service is required to overcome the trouble of using different platforms. The following uses the conversion from TIFF format to geotiff format as an example.First, you need to prepare several items:1. Make sure that ArcGIS data interoperability for desktop is installed.2. Check data interoperability in the extended mod

This section describes how ETL (data extraction, loading, and conversion) of my game transaction data analysis project is implemented.Let's talk about the source system first. Because the server of our transaction master station is not hosted in the company, we cannot directly extract data from the source system. As a matter of fact, we already have a simple data analysis system. We don't have to worry about this. We did not use the sqlserver2005 Bi p

Label: Use strong data on time database to Apply Oracle technology Incremental extraction incremental extraction only extracts new or modified data from the table to be extracted from the database since the last extraction. During ETL usage. Incremental extraction is more widely used than full extraction. How to capture changed data is the key to incremental extraction. There are generally two requirements for the capture method: accuracy, which can

Label:Reprinted from: http://www.cnblogs.com/ycdx2001/p/4538750.html -------------- In the leader said the urine is not wet and the beer story, here see the original text. (1) db/database/Database --This refers to the OLTP database, the online things database, to support production, such as the supermarket trading system. DB retains the latest state of data information, only one state! For example, every morning to get up and face in the mirror, see is the state, as for the previous day of the

Label: DB-ETL-DW-OLAP-DM-BI Relationship Structure diagram Here are a few words about some of their concepts: (1)db/database/Database -This is the OLTP database, the online things database, used to support production, such as the supermarket trading system. DB retains the latest state of data information, only one state! For example, every morning to get up and face in the mirror, see is the state, as for the previous day of the state, will not appea

Label:DB, ETL, DW, OLAP, DM, BI relationship structure diagram Here are a few words about some of their concepts: (1)db/database/Database -This is the OLTP database, the online things database, used to support production, such as the supermarket trading system. DB retains the latest state of data information, only one state! For example, every morning to get up and face in the mirror, see is the state, as for the previous day of the state, will not

; mysql. sqlecho "userId"> mysql. sqlecho "case"> mysql. SQL sed-I-e '1d 'm.txt cat m.txt | while read line do par1 =1 (echo "$ {line}" | awk-f''' {print $1} ') par2 = $ (echo "$ {line}" | awk-F ''' {print $2 }') id = $ (echo "$ {line}" | awk-F ''' {print $3} ') echo "par1 :1 {par1}" echo "par2: $ {par2} "echo" when hour_time >=$ {par1} and hour_time 3) All scripts are stored in the database, and parameters are parsed and called and executed by the program. Refer to kettle design: Each

What is ETL? SDE: Source Dependent Extract SDE mappings -- extracts the data from the transactional Source System and loads into the data warehouse staging tables. SDE mappings are designed with respect to the source's unique data model. SDE _ * workflows have only the staging table, the workflow will load the data into the staging area tables. In the staging the tables will not have index. It always truncates the data and loads the data into staging

ETL Application scenario, if the interface file is not provided, the task will be in the loop wait until the peer to provide, the method greatly consumes the system resources. To this end think of a method, one time to obtain a platform file, the realization of the following ideas:1, the first time to obtain the peer platform to provide the directory under the given date all the interface files, and save the file list;2, the subsequent restart every n