What is complex flat file in DataStage?

15/10/202215/10/2022 | Sarah HendricksonSarah Hendrickson | 0 Comment | 12:00 am

What is complex flat file in DataStage?

The Complex Flat File (CFF) stage is a file stage. You can use the stage to read a file or write to a file, but you cannot use the same stage to do both. As a source, the CFF stage can have multiple output links and a single reject link.

What is DataStage stage?

IBM® InfoSphere® DataStage® has several built-in stage types for use in parallel jobs. These stages are used to represent data sources, data targets, or transformation stages. Server job stages. IBM InfoSphere DataStage has several built-in stage types for use in server jobs.

What is flat file in mainframe?

Fixed-width flat file. A file characterized by delimited or fixed length (binary) files. Flattening. The conversion of files containing complex data structures, such as arrays, groups, and redefines, into data files that contain records with no structured relationships. Normalization.

How do I create a flat file in mainframe?

Procedure

  1. To create a flat file data source you need a text file that is already populated with data.
  2. In the Data Model tab, click the New Data Source icon and click Flat File.
  3. Enter the required information.
  4. Click Save to finish creating a new flat file data source.

How do I read an Ebcdic file in DataStage?

Perform the following:

  1. Open the CFF stage.
  2. Go to Records tab.
  3. Ensure all character type columns have unicode in the extended field.
  4. Go to the NLS Tab.
  5. Select ASCL_EBCDIC-037.

How do you use unstructured data stage in DataStage?

You can use Unstructured Data stage to design jobs that read unstructured data from Microsoft Excel files. In InfoSphere® DataStage®, you can configure a job to propagate extra columns that are not defined in the metadata through the rest of the job. This process is known as runtime column propagation (RCP).

What are the different stages available in DataStage?

DataStage provides three types of stages: Server Job Database Stages. Server Job File Stages. Dynamic Relational Stages.

What is funnel stage in DataStage?

The Funnel stage is a processing stage that copies multiple input data sets to a single output data set. You can use this operation for combining separate data sets into a single large data set. The Funnel stage is a processing stage. It copies multiple input data sets to a single output data set.

What are flat files in Cobol?

Importing a COBOL copybook creates a flat file. It can be used as reference for an external table and it can mapped as a source or target file in a mapping. Now that you have the file and the definition you can either use external tables or SQL Loader to work on the data.

Is VSAM a flat file?

the organization of VSAM file is different than flat file. The way VSAM file is defined, is it need cluster which will consists of index and data area and that is mandatory. Where as for flat file index is not mandatory.

How do you read a flat file in Cobol?

PROCEDURE

  1. Open the flatfile from “file” menu.
  2. Go to the “Data” tab.
  3. Select “Cobol” format from the right panel.
  4. It will ask you for the copybook, so please select the CPY file that corresponds to the flatfile you just opened.

How do I save a flat file?

Go to File > Save As. Click Browse. In the Save As dialog box, under Save as type box, choose the text file format for the worksheet; for example, click Text (Tab delimited) or CSV (Comma delimited).

What is Ebcdic code table?

The EBCDIC Character Table. Once upon a time IBM invented EBCDIC. EBCDIC is an acronym for Extended Binary Coded Decimal Interchange Code. It is a single byte (8 bit) character encoding standard that is used in the IBM mainframe environment.

How do I read a COBOL file in Datastage?

In the toolbar click on Import > Table Definitions > COBOL File Definitions . Specify the downloaded copybook file and click Import . You have just imported your copybook definitions!
…
This lab consists of the following steps:

  1. ​Create job layout​
  2. ​Add COBOL copybook as a table definition​
  3. ​Customize the job​

Which file format is supported by unstructured data stage in DataStage?

The latest version of IBM Infosphere Datastage (11.5) has a limitation on handling Unstructured Data. It can support only Microsoft Excel files as data sources.

Which type of data can be extracted using the unstructured data stage?

When you create an Unstructured Data stage job, you must configure the Unstructured Data stage so that it extracts the data and generates the output in the data type that the user requires. You can modify the column definition such as SQL Type, Length, Scale, and Nullable on the link.

What is SCD stage in DataStage?

The Slowly Changing Dimension (SCD) stage is a processing stage that works within the context of a star schema database. The SCD stage has a single input link, a single output link, a dimension reference link, and a dimension update link.

How do I remove duplicates in DataStage?

This is where you specify details about the processed data that is being output from the stage.

  1. Remove Duplicates stage: fast path.
  2. Remove Duplicates stage: Stage tab (DataStage)
  3. Remove Duplicates stage: Input tab.
  4. Remove Duplicates stage: Output tab (DataStage)

What are the uses of aggregator stage?

The aggregator stage gives you access to grouping and summary operations. The Aggregator stage is a processing stage. It classifies data rows from a single input link into groups and computes totals or other aggregate functions for each group.

What is a flat file used for?

A flat file consists of a single table of data. It allows the user to specify data attributes, such as columns and data types table by table, and stores those attributes separate from applications. This type of file is commonly used to import data in data warehousing projects.

What is a flat file example?

Examples of flat files include /etc/passwd and /etc/group on Unix-like operating systems. Another example of a flat file is a name-and-address list with the fields Name, Address, and Phone Number. A list of names, addresses, and phone numbers written by hand on a sheet of paper is a flat-file database.

What is difference between flat file and VSAM file?

VSAM Vs Non-VSAM (for Experienced)

VSAM Non-VSAM
VSAM files require the utility to create, edit and delete the file. Non-VSAM files can be created, edited, and deleted using the ISPF facility.
Only works with data stored on disk and can’t handle data stored on other devices like tapes. Files can store on both disks and tapes.

What is the difference between Ksds and RRDS?

CICS® supports access to the following types of data set, Key-sequenced data set (KSDS), Entry-sequenced data set (ESDS) and Relative record data set (RRDS) (both fixed and variable record lengths). VSAM data sets are held on direct-access storage devices (DASD) auxiliary storage.

What are the 4 divisions of a COBOL program?

, the statements, entires, paragraphs and sections of a COBOL source program are grouped into four divisions that are sequenced in the following order:

  • The Identification Division.
  • The Environment Division.
  • The Data Division.
  • The Procedure Division.

How do you remove mask data in mainframe?

To remove the =MASK> line from the panel, perform one of these actions:

  1. Type D in the line command field that contains the =MASK> flag and press Enter.
  2. Type RESET on the command line and press Enter.
  3. End the edit session by: Pressing F3 (if it is defined as the END command), or.

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