etl vs elt

; 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

/************************************************ Function:* * * * * Extract database records ****************************************** *******/intExtract_data (Char*efilename,Const Char*sqlname) {FILE*Fpwrite; EXEC SQL BEGIN DECLARE section; varchar v_str_sql[ the+1];/*SQL statements*/varchar Vc_expcol[maxlen]; EXEC SQL END DECLARE section; /**/strcpy ((Char*) v_str_sql.arr,sqlname); V_str_sql.len=strlen ((Char*), #ifdef DEBUG printf (v_str_sql.arr)"SQL statement%s.\n", V_str_sql.arr);#en

First, the purposeMerge tables on different servers onto another server. For example, merge table B on server 1 on table A and server 2 to table C on server 3Requirements: Table A needs to be cropped (removing unnecessary fields), table B needs to add some fieldsIi. Methods of Use(1) Create a new Table C (field that conforms to the actual system design) in the database on server 3(2) Create a new table input, connect to server 1, select the table you want to use by getting the SQL statement, or

multiple) under Properties: Locale (Specify the country language code, such as: EN_US,ZH_CN Value: the corresponding text (5) Localized_tooltip/tooltip (plugin hint text, can be multiple) under Properties: Locale (Specify the country language code, such as: EN_US,ZH_CN Value: the corresponding text C. Second way: Scan All of the jar packages in these three directories have type-corresponding declared classes (this method needs to be done through the definition file) type of interface

Introduction to the outsetToday, when you load data using QV, you run into some state in the column, and the information is separated by a symbol, which is not conducive to data analysis because the content in the string is itself a dimension. Search the Internet to find a solution to the method, record.For example, in the first picture, s200,m250,r35 are all Invoice types, which need to be taken out as the dimension DIMENSION of the analysis.You can use the following code to achieve the separat

identifier for tombstone dataCreate multiset volatile table Del5. Inserting data into the temporary table in accordance with certain loading rulesINSERT INTO new6, using the data of the temporary table and the warehouse table data as a comparison of the newly changed data into the Delta tableINSERT INTO Inc Select ... from new7, the source table data has a special identification (generally end_dt=min_date) into the delete tableInsert INTO del Select. From New where end_dt=min_date8, to all in t

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

a description of the settings that are supported by the Runtime column extension project level, and how to create a schema file. Next will be based on years of business Intelligence project experience, virtual out of the typical RCP use scenario, step-by-step implementation of RCP in Infosphere DataStage use, give each detail, including the design of the job, each phase of the parameter settings, detailing how RCP is in the ETL to reuse Dat Astage op

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

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 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 In the data warehouse project,

Note: to learn this article, you need to build on the basic understanding of integration services. If you do not have any knowledge, please refer to step by step to learn Bi (1)-Understanding integration services Target: Import a text file to the execl file through the ETL project. Steps: 1. Create a is project. 2. Double-click the package. dtsx file in the "SSIS packages" folder (this file is the package file) to go to the control flow working direc

Label:The first knowledge Talend, the feeling function is very powerful, can synchronize many kinds of databases, simultaneously can clean, the filter, the Java Code processing data, the data import and export.Talend is an open source software for ETL (data extraction extract, transfer transform, load load) for the data integration tools market. Talend provides a new vision for ETL services with its dual mo

Tags: show roc test mina test Data date () solution INF InsertScene: An SSIS ETL package that pulls data from a SQL Server source to a MySQL target table needs to be solved by a simple data flow component, but SSIS 2014 does not support the use of ADO in Data flow Connection as MySQL desitination, the runtime will error (do not use the source connection), replaced by ODBC connection can be successful, but the load speed is too slow. Insert the 260908

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 ap

DB, ETL, DW, OLAP, DM, BI relationship structure diagramHere 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 appear in

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