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Create a Simple Database Table for ABAP Environment

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Create a Simple Database Table for ABAP Environment
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Create a Simple Database Table for ABAP Environment

Merve Yalcin

04/16/2019

Beginner
10 min.
SAP Cloud Platform, ABAP environment, Tutorial, SAP Cloud Platform, Beginner, ABAP Development
Create a database table in SAP Cloud Platform ABAP Environment and prefill it with data.

You will learn

  • How to create a database table
  • How to prefill your database table with data

In this tutorial, wherever XXX appears, use a number (e.g. 000).

Step 1: Open Eclipse

Open Eclipse, and select New > ABAP Package.

Open Eclipse
Done
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Step 2: Create ABAP package

  1. Maintain following information in the appearing dialog and click Next.

    • Name: Z_Booking_XXX
    • Description: Package Booking

    Create ABAP package

  2. Move on with Next.

    Create ABAP package

  3. Select transport request and click Finish.

    Create ABAP package

Done
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Step 3: Open ABAP repository object

Right-click on your package and navigate to New > Other ABAP Repository Object from the appearing context menu.

Open ABAP repository object
Done
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Step 4: Create database table
  1. Search for database table, select the appropriate entry and click Next.

    Create database table

  2. Maintain the required information and click Next.
    • Name: ZTBOOKING_XXX
    • Description: Table Booking

    Create database table

  3. On the next dialog, provide a transport request and click Finish.

    Create database table

  4. Check result. An empty table is now created.

    Check code

Done
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Step 5: Define database table
View Full Instructions

  1. Define the table columns (client, booking, customername, numberofpassengers, …). Specify client and booking as key fields, and the field currencycode as currency key for cost as displayed below. The table annotations (beginning with @) remain unchanged. For that, you can copy the database table definition provided below.


    @EndUserText.label : 'Demo: Booking Data'
@AbapCatalog.enhancementCategory : #NOT_EXTENSIBLE
@AbapCatalog.tableCategory : #TRANSPARENT
@AbapCatalog.deliveryClass : #A
@AbapCatalog.dataMaintenance : #LIMITED
define table ztbooking_xxx {
key client         : abap.clnt not null;
key booking        : abap.int4 not null;
customername       : abap.char(50);
numberofpassengers : abap.int2;
emailaddress       : abap.char(50);
country            : abap.char(50);
dateofbooking      : timestampl;
dateoftravel       : timestampl;
@Semantics.amount.currencyCode : 'ztbooking_xxx.currencycode'
cost               : abap.curr(15,2);
currencycode       : abap.cuky;
lastchangedat      : timestampl;
}

  2. Save and activate the database table.

    Define database table

Done
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Step 6: Create ABAP class

  1. Create a class in order to prefill our created database table. Right-click on your package and navigate to New > ABAP Class in the appearing context menu.

    Create ABAP class

  2. Provide the required information and click Next.

    • Name: ZCL_GENERATE_BOOKINGS_XXX
    • Description: Class to generate bookings

    Create ABAP class

  3. Provide a transport request and click Finish.

    Create ABAP class

Done
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Step 7: Replace source code
View Full Instructions

  1. Replace the source code of your class with the one provided below:


    CLASS zcl_generate_bookings_xxx DEFINITION
  PUBLIC
  FINAL
  CREATE PUBLIC .

  PUBLIC SECTION.
    INTERFACES if_oo_adt_classrun.
  PROTECTED SECTION.
  PRIVATE SECTION.
ENDCLASS.


CLASS zcl_generate_bookings_xxx IMPLEMENTATION.

  METHOD if_oo_adt_classrun~main.
    DATA:it_bookings TYPE TABLE OF ztbooking_xxx.

*    read current timestamp
    GET TIME STAMP FIELD DATA(zv_tsl).
*   fill internal table (itab)
    it_bookings = VALUE #(
        ( booking  = '1' customername = 'Buchholm' numberofpassengers = '3' emailaddress = 'tester1@flight.example.com'
          country = 'Germany' dateofbooking ='20180213125959' dateoftravel ='20180213125959' cost = '546' currencycode = 'EUR' lastchangedat = zv_tsl )
        ( booking  = '2' customername = 'Jeremias' numberofpassengers = '1' emailaddress = 'tester2@flight.example.com'
          country = 'USA' dateofbooking ='20180313125959' dateoftravel ='20180313125959' cost = '1373' currencycode = 'USD' lastchangedat = zv_tsl )
     ).

*   Delete the possible entries in the database table - in case it was already filled
    DELETE FROM ztbooking_xxx.
*   insert the new table entries
    INSERT ztbooking_xxx FROM TABLE @it_bookings.

*   check the result
    SELECT * FROM ztbooking_xxx INTO TABLE @it_bookings.
    out->write( sy-dbcnt ).
    out->write( 'data inserted successfully!').

  ENDMETHOD.

ENDCLASS.

  2. Save and active your class.

    Replace source code

Done
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Step 8: Run ABAP application

  1. Run your class as an ABAP application (console) or press F9.

    Run ABAP application

  2. Check console output.

    Check console output

  3. Switch back to your data definition and press F8 to see the inserted data.

    Check inserted data

  4. Now check your result.

    Check inserted data

Done
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Step 9: Test yourself

Define a table (without metadata) with following information in the correct order:

  • Name: ztestyourself
  • Key-Element: key client: abap.clnt not null
  • Elements:
    • customername: abap.char(50)
    • country: abap.char(50)
    • emailaddress: abap.char(50)
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Next Steps

Prerequisites

  • You must have an SAP Cloud Platform ABAP Environment user.
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