ABAP Select data from SAP table AEPRSCEDEMAND into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP AEPRSCEDEMAND table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to AEPRSCEDEMAND. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the AEPRSCEDEMAND table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_AEPRSCEDEMAND TYPE STANDARD TABLE OF AEPRSCEDEMAND,
      WA_AEPRSCEDEMAND TYPE AEPRSCEDEMAND,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <AEPRSCEDEMAND> TYPE AEPRSCEDEMAND.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_AEPRSCEDEMAND.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM AEPRSCEDEMAND
  INTO TABLE IT_AEPRSCEDEMAND.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AEPRSCEDEMAND
*  INTO TABLE @DATA(IT_AEPRSCEDEMAND2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_AEPRSCEDEMAND INDEX 1 INTO DATA(WA_AEPRSCEDEMAND2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_AEPRSCEDEMAND ASSIGNING <AEPRSCEDEMAND>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AEPRSCEDEMAND>-MANDT = 1.
<AEPRSCEDEMAND>-WORKPACKAGE = 1.
<AEPRSCEDEMAND>-RESOURCEDEMAND = 1.
<AEPRSCEDEMAND>-VERSION = 1.
<AEPRSCEDEMAND>-ENGAGEMENTPROJECT = 1.

ENDLOOP.

LOOP AT IT_AEPRSCEDEMAND INTO WA_AEPRSCEDEMAND.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AEPRSCEDEMAND-RESOURCEDEMANDUUID, sy-vline,
  WA_AEPRSCEDEMAND-ENGAGEMENTPROJECTCATEGORY, sy-vline,
  WA_AEPRSCEDEMAND-ENGAGEMENTPROJECTTYPE, sy-vline,
  WA_AEPRSCEDEMAND-ENGAGEMENTPROJECTSERVICEORG, sy-vline,
  WA_AEPRSCEDEMAND-WORKITEM, sy-vline,
  WA_AEPRSCEDEMAND-BILLINGCONTROLCATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AEPRSCEDEMAND you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_AEPRSCEDEMAND TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_AEPRSCEDEMAND INTO WA_AEPRSCEDEMAND.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AEPRSCEDEMAND-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AEPRSCEDEMAND-UNITOFMEASURE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AEPRSCEDEMAND-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AEPRSCEDEMAND-PROFITCENTER.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_AEPRSCEDEMAND_STR, 
MANDT TYPE STRING,
WORKPACKAGE TYPE STRING,
RESOURCEDEMAND TYPE STRING,
VERSION TYPE STRING,
ENGAGEMENTPROJECT TYPE STRING,
RESOURCEDEMANDUUID TYPE STRING,
ENGAGEMENTPROJECTCATEGORY TYPE STRING,
ENGAGEMENTPROJECTTYPE TYPE STRING,
ENGAGEMENTPROJECTSERVICEORG TYPE STRING,
WORKITEM TYPE STRING,
BILLINGCONTROLCATEGORY TYPE STRING,
DELIVERYORGANIZATION TYPE STRING,
ENGAGEMENTPROJECTRESOURCETYPE TYPE STRING,
ENGAGEMENTPROJECTRESOURCE TYPE STRING,
WORKFORCEPERSONUSERID TYPE STRING,
COUNTRY2DIGITISOCODE TYPE STRING,
KEYDATE TYPE STRING,
PERSONWORKAGREEMENT TYPE STRING,
RESOURCEDEMANDSTATUS TYPE STRING,
UNITOFMEASURE TYPE STRING,
QUANTITY TYPE STRING,
CURRENCY TYPE STRING,
DEMANDCOSTAMT TYPE STRING,
DEMANDREVAMT TYPE STRING,
PROJECTVISIBILITY TYPE STRING,
PROJECTPROFILECODE TYPE STRING,
ENGMNTPROJECTHEADERCOMPANYCODE TYPE STRING,
ENGAGEMENTPROJECTCOSTCENTER TYPE STRING,
PROFITCENTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AEPRSCEDEMAND_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_AEPRSCEDEMAND_STR-MANDT sy-vline 
WA_AEPRSCEDEMAND_STR-WORKPACKAGE sy-vline 
WA_AEPRSCEDEMAND_STR-RESOURCEDEMAND sy-vline 
WA_AEPRSCEDEMAND_STR-VERSION sy-vline 
WA_AEPRSCEDEMAND_STR-ENGAGEMENTPROJECT sy-vline 
WA_AEPRSCEDEMAND_STR-RESOURCEDEMANDUUID sy-vline 
WA_AEPRSCEDEMAND_STR-ENGAGEMENTPROJECTCATEGORY sy-vline 
WA_AEPRSCEDEMAND_STR-ENGAGEMENTPROJECTTYPE sy-vline 
WA_AEPRSCEDEMAND_STR-ENGAGEMENTPROJECTSERVICEORG sy-vline 
WA_AEPRSCEDEMAND_STR-WORKITEM sy-vline 
WA_AEPRSCEDEMAND_STR-BILLINGCONTROLCATEGORY sy-vline 
WA_AEPRSCEDEMAND_STR-DELIVERYORGANIZATION sy-vline 
WA_AEPRSCEDEMAND_STR-ENGAGEMENTPROJECTRESOURCETYPE sy-vline 
WA_AEPRSCEDEMAND_STR-ENGAGEMENTPROJECTRESOURCE sy-vline 
WA_AEPRSCEDEMAND_STR-WORKFORCEPERSONUSERID sy-vline 
WA_AEPRSCEDEMAND_STR-COUNTRY2DIGITISOCODE sy-vline 
WA_AEPRSCEDEMAND_STR-KEYDATE sy-vline 
WA_AEPRSCEDEMAND_STR-PERSONWORKAGREEMENT sy-vline 
WA_AEPRSCEDEMAND_STR-RESOURCEDEMANDSTATUS sy-vline 
WA_AEPRSCEDEMAND_STR-UNITOFMEASURE sy-vline 
WA_AEPRSCEDEMAND_STR-QUANTITY sy-vline 
WA_AEPRSCEDEMAND_STR-CURRENCY sy-vline 
WA_AEPRSCEDEMAND_STR-DEMANDCOSTAMT sy-vline 
WA_AEPRSCEDEMAND_STR-DEMANDREVAMT sy-vline 
WA_AEPRSCEDEMAND_STR-PROJECTVISIBILITY sy-vline 
WA_AEPRSCEDEMAND_STR-PROJECTPROFILECODE sy-vline 
WA_AEPRSCEDEMAND_STR-ENGMNTPROJECTHEADERCOMPANYCODE sy-vline 
WA_AEPRSCEDEMAND_STR-ENGAGEMENTPROJECTCOSTCENTER sy-vline 
WA_AEPRSCEDEMAND_STR-PROFITCENTER sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.