ABAP Select data from SAP table EDEREGSCENARIOCONTR_GEN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EDEREGSCENARIOCONTR_GEN 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 EDEREGSCENARIOCONTR_GEN. 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 EDEREGSCENARIOCONTR_GEN 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_EDEREGSCENARIOCONTR_GEN TYPE STANDARD TABLE OF EDEREGSCENARIOCONTR_GEN,
      WA_EDEREGSCENARIOCONTR_GEN TYPE EDEREGSCENARIOCONTR_GEN,
      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: <EDEREGSCENARIOCONTR_GEN> TYPE EDEREGSCENARIOCONTR_GEN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDEREGSCENARIOCONTR_GEN
*  INTO TABLE @DATA(IT_EDEREGSCENARIOCONTR_GEN2).
*--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_EDEREGSCENARIOCONTR_GEN INDEX 1 INTO DATA(WA_EDEREGSCENARIOCONTR_GEN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDEREGSCENARIOCONTR_GEN>-SERVICENO = 1.
<EDEREGSCENARIOCONTR_GEN>-VERTRAG = 1.
<EDEREGSCENARIOCONTR_GEN>-SERVICE = 1.
<EDEREGSCENARIOCONTR_GEN>-SERVICEID = 1.
<EDEREGSCENARIOCONTR_GEN>-INVOICING_PARTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDEREGSCENARIOCONTR_GEN-ANLAGE, sy-vline,
  WA_EDEREGSCENARIOCONTR_GEN-BUKRS, sy-vline,
  WA_EDEREGSCENARIOCONTR_GEN-VKONTO, sy-vline,
  WA_EDEREGSCENARIOCONTR_GEN-GPART, sy-vline,
  WA_EDEREGSCENARIOCONTR_GEN-OWN_SERVICE, sy-vline,
  WA_EDEREGSCENARIOCONTR_GEN-SERVICE_START, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDEREGSCENARIOCONTR_GEN 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_EDEREGSCENARIOCONTR_GEN 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_EDEREGSCENARIOCONTR_GEN INTO WA_EDEREGSCENARIOCONTR_GEN.


*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 ALPHA, internal->external for field VERTRAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EDEREGSCENARIOCONTR_GEN-VERTRAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EDEREGSCENARIOCONTR_GEN-VERTRAG.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field MOVEOUTDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EDEREGSCENARIOCONTR_GEN-MOVEOUTDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EDEREGSCENARIOCONTR_GEN-MOVEOUTDOC.
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_EDEREGSCENARIOCONTR_GEN_STR, 
SERVICENO TYPE STRING,
VERTRAG TYPE STRING,
SERVICE TYPE STRING,
SERVICEID TYPE STRING,
INVOICING_PARTY TYPE STRING,
ANLAGE TYPE STRING,
BUKRS TYPE STRING,
VKONTO TYPE STRING,
GPART TYPE STRING,
OWN_SERVICE TYPE STRING,
SERVICE_START TYPE STRING,
SERVICE_END TYPE STRING,
OBJID_ANLAGE TYPE STRING,
OBJID_VKONTO TYPE STRING,
SERVICESTATUS TYPE STRING,
DONE TYPE STRING,
NEW_START TYPE STRING,
NEW_END TYPE STRING,
VERTRAG_OLD TYPE STRING,
IPARAMCONT TYPE STRING,
MOVEINDOC TYPE STRING,
MOVEOUTDOC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDEREGSCENARIOCONTR_GEN_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_EDEREGSCENARIOCONTR_GEN_STR-SERVICENO sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-VERTRAG sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-SERVICE sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-SERVICEID sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-INVOICING_PARTY sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-ANLAGE sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-BUKRS sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-VKONTO sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-GPART sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-OWN_SERVICE sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-SERVICE_START sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-SERVICE_END sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-OBJID_ANLAGE sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-OBJID_VKONTO sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-SERVICESTATUS sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-DONE sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-NEW_START sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-NEW_END sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-VERTRAG_OLD sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-IPARAMCONT sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-MOVEINDOC sy-vline 
WA_EDEREGSCENARIOCONTR_GEN_STR-MOVEOUTDOC sy-vline      INTO ld_text SEPARATED BY SPACE.

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