ABAP Select data from SAP table ECAMIOPRACC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ECAMIOPRACC
*  INTO TABLE @DATA(IT_ECAMIOPRACC2).
*--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_ECAMIOPRACC INDEX 1 INTO DATA(WA_ECAMIOPRACC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ECAMIOPRACC>-MANDT = 1.
<ECAMIOPRACC>-PRDOC = 1.
<ECAMIOPRACC>-GPART = 1.
<ECAMIOPRACC>-VKONT = 1.
<ECAMIOPRACC>-EZAWE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ECAMIOPRACC-AZAWE, sy-vline,
  WA_ECAMIOPRACC-ABWRE, sy-vline,
  WA_ECAMIOPRACC-ABWRA, sy-vline,
  WA_ECAMIOPRACC-ABWMA, sy-vline,
  WA_ECAMIOPRACC-ABWRH, sy-vline,
  WA_ECAMIOPRACC-EBVTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ECAMIOPRACC 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_ECAMIOPRACC 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_ECAMIOPRACC INTO WA_ECAMIOPRACC.


*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 PRDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ECAMIOPRACC-PRDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECAMIOPRACC-PRDOC.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field GPARV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ECAMIOPRACC-GPARV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECAMIOPRACC-GPARV.
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_ECAMIOPRACC_STR, 
MANDT TYPE STRING,
PRDOC TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
EZAWE TYPE STRING,
AZAWE TYPE STRING,
ABWRE TYPE STRING,
ABWRA TYPE STRING,
ABWMA TYPE STRING,
ABWRH TYPE STRING,
EBVTY TYPE STRING,
ABVTY TYPE STRING,
VKONV TYPE STRING,
GPARV TYPE STRING,
CCARD_ID TYPE STRING,
CCARD_OUT TYPE STRING,
VKBEZ TYPE STRING,
DDLAM TYPE STRING,
DDLCU TYPE STRING,
DDLNM TYPE STRING,
DDLXG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ECAMIOPRACC_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_ECAMIOPRACC_STR-MANDT sy-vline 
WA_ECAMIOPRACC_STR-PRDOC sy-vline 
WA_ECAMIOPRACC_STR-GPART sy-vline 
WA_ECAMIOPRACC_STR-VKONT sy-vline 
WA_ECAMIOPRACC_STR-EZAWE sy-vline 
WA_ECAMIOPRACC_STR-AZAWE sy-vline 
WA_ECAMIOPRACC_STR-ABWRE sy-vline 
WA_ECAMIOPRACC_STR-ABWRA sy-vline 
WA_ECAMIOPRACC_STR-ABWMA sy-vline 
WA_ECAMIOPRACC_STR-ABWRH sy-vline 
WA_ECAMIOPRACC_STR-EBVTY sy-vline 
WA_ECAMIOPRACC_STR-ABVTY sy-vline 
WA_ECAMIOPRACC_STR-VKONV sy-vline 
WA_ECAMIOPRACC_STR-GPARV sy-vline 
WA_ECAMIOPRACC_STR-CCARD_ID sy-vline 
WA_ECAMIOPRACC_STR-CCARD_OUT sy-vline 
WA_ECAMIOPRACC_STR-VKBEZ sy-vline 
WA_ECAMIOPRACC_STR-DDLAM sy-vline 
WA_ECAMIOPRACC_STR-DDLCU sy-vline 
WA_ECAMIOPRACC_STR-DDLNM sy-vline 
WA_ECAMIOPRACC_STR-DDLXG sy-vline      INTO ld_text SEPARATED BY SPACE.

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