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Posted by Sudheer Sharma 18 December 2011
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  • SAP Data Services 

    December 12, 2008, 13:16

    SAP Business Objects Data Services  Overview Data Services is a GUI based ETL tool from SAP Business Objects. It is a client server technology and an…

    • DI Architecture 

      December 15, 2008, 18:05

        DI Architecture   Mainly i want to discuss about Designer, Engine, Jobserver, and Repository 1. DI Designer is to design your job and save it to a local…

    • DI Components 

      December 15, 2008, 18:08

      When we install BODI s/w the follow standard Data Integrator components are going to be installed Data Integrator Designer Data Integrator Engine…

    • Creation of Local Repository 

      January 13, 2009, 18:50

      1. To create a DI Oracle local repository, first of all we need to log logon to oracle sys account Connect SYS/SYS AS SYSDBA 2. Now we have to create…

    • Configuring Repository with Job Server 

      January 14, 2009, 16:48

      Open the Server Manager Start--> Programs--> BusinessObjects DataIntegrator--> Server Manager Server Manager window will be opened,…

    • Repository Creation using Batch script 

      February 2, 2009, 11:58

        We can create repository using batch script, blend the below script in your batch file. This would work like a silent repo creation   REPOMANBATCH -U…

    • What's new in BODI 11.5 Release 

      February 2, 2009, 12:24

      Here i jotted some points that what i have observed in the BODI XI (11.0, 11.1, 11.5). New Transformations Address_Enhancement Name_Parsing Match_Merge …

    • Case Transform 

      February 6, 2009, 17:19

      This transform defines different rows in different manners

    • Row_Generation Transform 

      February 7, 2009, 03:07

      Produces a data set with a single column. Values start from zero and increment by one to a specified number of rows.

    • SQL Transform 

      February 9, 2009, 13:30

      Performs a specified SQL query operation

    • XML_Pipeline Transform 

      February 9, 2009, 18:15

      Note on XML_Pipeline Transform: This deals with XML Sources and process large XML files into smaller pieces. Options: No Options for this transform Rules: …

    • Pivot Transform 

      February 11, 2009, 18:18

      Note on Pivot: This creates a new row for every value that you specified as a pivot column. Observe the icon, it says that will convert column to rows.…

    • Significance of Overflow option? 

      February 12, 2009, 16:18

      "Overflow" is an option used for error handling. You cannot expect quality(valid) data everytime, sometimes we might get bad rows also, hence an error would…

    • Flatfile Lookup 

      February 12, 2009, 18:19

      Performing a lookup on a flatfile isn't a bid deal in DI. Here is the way to go, follow the steps. Here, EMP (Table) is my source and DEPT (Flatfile)…

    • Cummulative Measure 

      February 13, 2009, 13:14

      Calculating a cummulative measure is common query in DW, but there is no straight forward way in DI. Either you have to write a custom function or you have to…

    • DI Repo Password Encryption 

      February 18, 2009, 17:44

      To encrypt your repo password, follow the steps Start-> Run -> CMD (command prompt) Browse Data Integrator   <LINK_DIR>\Bin  Directory …

    • Loading DI Error, Monitor, Trace files into a table 

      February 21, 2009, 20:11

      Sometimes we need to write error details(like error number, description) into table. Let us say, a job is being executed, an error occured in the middle of…

    • Key_Generation Transform 

      February 23, 2009, 01:18

      When creating a dimension table in a data warehouse, we generally create the tables with a system generated key to unqiuely identify a row in the dimension.…

    • How to get job execution statistics using repository tables. 

      February 23, 2009, 03:36

      I have written few quries to fetch the status information of jobs Fire these below queries against your repository database -----------------------------…

    • What's new in BODI 11.7 Accelerated 

      February 24, 2009, 03:02

      Many points to discuss, but i will write few points that's what I have observed so far.... New Transformations Data_Transfer Data Quality transformations…

    • Multiple Datastore Configs - System Configs 

      April 10, 2009, 22:50

      Well, sometimes we need to read data from different sources  For this you need to create multiple configurations on single datastore and System configurati…

    • ETL Tool Comparison 

      April 12, 2009, 13:49

        When we browse any forum/discussion groups, people used to ask few common questions. Has anyone compared different ETL Tools in the market? Do…

    • DI Central Repo vs IBM's Rational ClearCase (Version Controlling) 

      May 1, 2009, 01:06

      Central Repo Version Control Comparision

    • List of ETL Tools 

      May 2, 2009, 05:11

      No description found for this item.

    • Query Transform 

      May 4, 2009, 06:26

      Query Tranformation

    • Reverse Pivot Transform 

      May 4, 2009, 11:07

      Note on Reverse Pivot: This transform converts rows in to columns. It will group the data-set of different rows in to a single row with different columns. Obse…

    • Lookups in SAP BODI/DS 

      January 20, 2011, 06:19

      What is a Lookup table? In DW terminology, Lookup is the common practice in ETL operations to get the appropriate value from a lookup table/referenced data…

    • How to import atl into repository using al_engine 

      July 8, 2009, 11:38

      Importing atl file into repository using script. RepoServerName= RepoDatabaseName= DatabaseType= RepoUserName= RepoPassword= ATLFile…

    • Migration of Repositories (Export/Import) 

      April 3, 2009, 18:51

      In general, we use to migrate our repo's mainly in three different phases (Devlopment, Testing and Production). Each environment might have different…

    • Map_Operation Transform 

      February 16, 2009, 18:41

      Allows conversions between operation codes.

    • Date_Generation Transform 

      February 7, 2009, 02:02

      Produces a series of dates incremented as you specify

    • Merge Transform 

      February 6, 2009, 18:08

      Combines two or more schemas as a single schema

    • How to view more than 1000 records in View data section window 

      August 11, 2009, 23:38

      My source table has  4500 records and I processed same set of data to target table. I was checking the data in 'View data' section of both the soruce and…

    • How can I see complete Workflow/Dataflow names in the workspace 

      August 12, 2009, 00:07

      Sometimes we cannot avoid longish names for DI WF/DF objects because we need to follow naming conventions. I can't read the whole name in the workspace…

    • Toolbar doesn't allow docking 

      August 16, 2009, 20:04

      Oneday, I was changing my DI designer appearance (moving standard toolbar from oneplace to another, project explorer window etc.,) somehow I got an error, I…

    • Naming Conventions 

      August 23, 2009, 20:23

      When designing an ETL code using Data Integrator/Data Services its always a good idea to follow some sort of naming conventions. The following are some…

  • DataBase 

    January 15, 2009, 13:16

    A database is a structured collection of records or data that is stored in a computer system. The structure is achieved by organizing the data according to a…

    • Codd's 12 Rules 

      January 15, 2009, 13:05

        Codd's 12 rules are a set of thirteen rules (numbered zero to twelve) proposed by Edgar F. Codd, a pioneer of the relational model for databases,…

    • Types of Databases 

      January 15, 2009, 18:05

      These days when we talk about databases in the wild, we are mostly talking about two types of databases Analytic Database Operational Database Analytic…

    • Conceptual Model 

      January 17, 2009, 18:19

      The conceptual model is concerned with the real world view and understanding of data. It typically includes only significant entities which have business…

    • Normalization 

      January 21, 2009, 16:34

        Normalization is the process of efficiently organizing data in the database. Normalized data must be in "relational" data structure. Why "Normalize"…

    • SQL Constraints 

      November 26, 2008, 04:44

      1bb4e641-5c29-46e1-9302-d1032e9caad5  Constraints are used to limit the type of data that can go into a table. Constraints can be specified when a table…

      • SQL NOT NULL Constraint 

        November 26, 2008, 04:53

        1bb4e641-5c29-46e1-9302-d1032e9caad5  The NOT NULL constraint enforces a column to NOT accept NULL values. The NOT NULL constraint enforces a field to…

      • SQL Unique Constraint 

        November 26, 2008, 05:35

          SQL UNIQUE Constraint The UNIQUE constraint uniquely identifies each record in a database table. The UNIQUE and PRIMARY KEY constraints both provide a…

      • SQL Primary Key Constraint 

        November 26, 2008, 06:16

        SQL PRIMARY KEY Constraint The PRIMARY KEY constraint uniquely identifies each record in a database table. Primary keys must contain unique values. A…

      • SQL Foreign Key Constraints 

        November 26, 2008, 06:20

        SQL FOREIGN KEY Constraint A FOREIGN KEY in one table points to a PRIMARY KEY in another table. Let's illustrate the foreign key with an example. Look at…

      • SQL Check Constraint 

        November 26, 2008, 06:23

        SQL CHECK Constraint The CHECK constraint is used to limit the value range that can be placed in a column. If you define a CHECK constraint on a single…

      • SQL Default Constraint 

        November 26, 2008, 06:26

        SQL DEFAULT Constraint The DEFAULT constraint is used to insert a default value into a column. The default value will be added to all new records, if no…

    • What is RDBMS? 

      February 2, 2009, 16:52

      RDBMS stands for Relational Database Management System. RDBMS data is structured in database tables, fields and records. Each RDBMS table consists of database…

    • ASCII Table 

      March 21, 2009, 04:35

      ASCII / American Standard Code for Information Interchange   ASCII is the standard code used for information interchange and communication between data…

  • Data Warehousing 

    December 15, 2008, 17:42

    Overview A Data Warehouse has been used to refer to a database that contains very large stores of historical data. The data is stored as a series of…

    • Enterprise Data Model 

      December 15, 2008, 17:53

        An Enterprise Data Model (EDM) represents a single integrated definition of data, unbiased of any system or application. It is independent of "how" the…

    • Fundamental Stages of DWH 

      December 15, 2008, 23:20

        Offline Operational Databases In this initial stage, simply copying the database of an operational system to an off-line sever where the processing load of…

    • Operational Data Store(ODS) 

      December 15, 2008, 23:28

      Operational Data Store A database structure that is a repository for a near real-time data rather than long term data. The ODS may further become the…

    • Different methods of loading data 

      December 15, 2008, 23:47

        There are two different ways to load data in dimension tables. Conventional Load (Slow) Direct Load (Fast) Conventional Load (Slow) All the…

    • Data Mart 

      December 16, 2008, 00:09

        Data Mart It is a subset of data warehouse and it supports a particular region, business unit like Sales, Marketing, HR, Finance. DW's and DM's are…

    • Repository 

      December 16, 2008, 12:10

        Repository A repository combines multiple data sources into one normalized database. The records in a repository are updated frequently. Data is operationa…

    • Data Warehouse Life Cycle 

      December 16, 2008, 13:23

        Phase I Project Plan and Scope of the Project There are three parameters to be consider    Scope Time Resource     Scope  What you would…

    • OLTP, OLAP 

      December 16, 2008, 20:27

        OLTP (On-Line Transaction Processing) This system is an application that modifies data the instance it receives and has a large number of concurrent…

    • ETL 

      December 16, 2008, 21:12

        ETL (Extraction, Transform and Load) ETL is software that enables business to consolidate their disparate data while moving it from place to place, and it…

    • Data Warehouse vs Data Mart 

      December 17, 2008, 00:34

        Data Warehouse DWH focuses on enterprise data across many subject areas It stores large volume of data and maintains historical information.     A…

    • ELT (Extract, Load and Transform) 

      December 18, 2008, 13:12

      ELT (Extract, Load and Transform)

    • Data Integration 

      January 17, 2009, 19:00

      Data Integration Pulling together & reconciling dispersed data for analytic purpose that organizations have maintained in multiple hetrogenous systems. D…

    • Operational Vs Historical 

      January 19, 2009, 16:56

        Operational systems are designed to support Transaction Processing whereas Data Warehouse systems are designe to support  Online analytical Processing  …

    • Metadata 

      January 19, 2009, 18:35

        It is nothing but "Data about data", any data maintained to support the operation or use of data warehouse. It describes how and when by whom a particular…

    • Logical versus Physical Design 

      January 21, 2009, 12:53

        After all business requirements have been gathered for a proposed database, they must be modeled. Basically, data modeling act like a bridge between…

    • Referential Constraints 

      January 27, 2009, 15:16

        In the context of relational databases, a foriegn key is a referential constraint between two tables.  The foriegn key identifies a column or a set of…

    • HIPAA - Health Insurance Portability and Accountabilty Act 

      April 1, 2009, 00:17

      HIPAA - Health Insurance Portability and Accountabilty Act

    • Data Mining 

      February 3, 2009, 17:56

      It is the process of analyzing data from different perspectives and summarizing it into useful information.

    • SCD - Slowly Changing Dimensions 

      July 28, 2009, 18:07

      Implementing SCD’s is common concern in Data Warehouse design. Let me brief about different types of SCD’s first then we can step in to SCD’s design. Dim…

    • Data Warehouse in the Insurance Industury 

      July 28, 2009, 18:11

      Data Warehousing in the Insurance Industry, A Strategic Advantage: Designing High-Performance DSS Databases One of the biggest challenges in building…

    • Summary Tables 

      October 20, 2009, 01:52

      Summary Tables A common technique used in data warehouse is prior computation and store results of some frequent SQl's. This is useful when the queries are…

    • Normalization Vs Denormalization 

      November 29, 2008, 04:03

      27ad2ec5-117c-4ba7-a05a-f35bfd2df0ff When most of us design our databases we tend to think of them as related (and un-related) tables that contain data. It is…

    • AVG 

      November 29, 2008, 04:53

      The AVG() Function The AVG() function returns the average value of a numeric column. SQL AVG() Syntax SELECT AVG(column_name) FROM table_name  …

    • COUNT 

      November 29, 2008, 04:55

      The COUNT() function returns the number of rows that matches a specified criteria. SQL COUNT(column_name) Syntax The COUNT(column_name) function returns…

    • MAX 

      November 29, 2008, 04:57

      The MAX() Function The MAX() function returns the largest value of the selected column. SQL MAX() Syntax SELECT MAX(column_name) FROM table_name …

    • MIN 

      November 29, 2008, 04:58

      The MIN() Function The MIN() function returns the smallest value of the selected column. SQL MIN() Syntax SELECT MIN(column_name) FROM table_name …

    • SUM 

      November 29, 2008, 04:59

      The SUM() Function The SUM() function returns the total sum of a numeric column. SQL SUM() Syntax SELECT SUM(column_name) FROM table_name   …

    • STDDEV 

      November 29, 2009, 05:06

      Returns the sample standard deviation of an expression STDDEV( <expression>) OVER (<analytic_clause>) conn oe/oe col stddev format…

    • VARIANCE 

      November 29, 2009, 05:08

      VARIANCE Returns the variance of an expression VARIANCE( <value>) OVER (<analytic_clause>) conn oe/oe SELECT last_name, salary, VARIANC…

    • Late Arrivals 

      November 29, 2010, 05:54

      Ralph Kimbal's explaination about late arrivals http://www.rkimball.com/html/designtipsPDF/KimballDT57EarlyArriving.pdf What do you do when you receive…

    • Cube 

      June 27, 2011, 04:25

        A cube is mainly used for multi-dimensional analysis. The below questions can be answered if we have collected considerable amount of data What…

    • Measure and Facts 

      June 27, 2011, 05:35

      A fact table in data warehousing contains measures, metrics of a business and dimensional surrogate keys surrounded by dimension tables in a Star/Snow-flake…

    • Star Schema 

      December 19, 2011, 00:20

      Star Schema In Star schema , dimensional data (describing how data is commonly aggregated) is separated from Fact or event data (describing individual…

    • Snowflak Schema 

      December 19, 2011, 00:53

      Snowflake Schema Extension of Star Schema where the Dimension Tables are normalized. E.g. The dimension table Product has manufacturing plant , location of…

  • Links 

    March 26, 2009, 02:47

    You can find useful websites links here Data Integrator Forums BusinessObjects Board ITToolbox DI Tips n Tricks (Werner's Wiki) DS SAP Training…

  • About Me 

    January 30, 2009, 00:23

    Welcome !!! Hey folks, Welcome to my blog (A tiny technical reference). I'm an ETL Consultant, hails from Southern Part of India. I'm an enthusiastic and…

  • Google Search 

    March 22, 2011, 02:06

    google.load("elements", "1", {packages: "transliteration"});

  • Site Map 

    December 18, 2011, 23:43

    This page contains the site table of contents. Use it to quickly find content on this website.


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