ABAP Select data from SAP table ECAMIOVAR_COMPL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ECAMIOVAR_COMPL
*  INTO TABLE @DATA(IT_ECAMIOVAR_COMPL2).
*--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_ECAMIOVAR_COMPL INDEX 1 INTO DATA(WA_ECAMIOVAR_COMPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ECAMIOVAR_COMPL>-MANDT = 1.
<ECAMIOVAR_COMPL>-PRVAR = 1.
<ECAMIOVAR_COMPL>-MI_PRODID = 1.
<ECAMIOVAR_COMPL>-MO_PRODID = 1.
<ECAMIOVAR_COMPL>-PROPOSE_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ECAMIOVAR_COMPL-CONTACT, sy-vline,
  WA_ECAMIOVAR_COMPL-SAVE_IMMEDIATELY, sy-vline,
  WA_ECAMIOVAR_COMPL-NOTICE, sy-vline,
  WA_ECAMIOVAR_COMPL-SEP_MIDOC, sy-vline,
  WA_ECAMIOVAR_COMPL-SPRAS, sy-vline,
  WA_ECAMIOVAR_COMPL-TEXT50, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ECAMIOVAR_COMPL 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_ECAMIOVAR_COMPL 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_ECAMIOVAR_COMPL INTO WA_ECAMIOVAR_COMPL.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ECAMIOVAR_COMPL-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECAMIOVAR_COMPL-SPRAS.
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_ECAMIOVAR_COMPL_STR, 
MANDT TYPE STRING,
PRVAR TYPE STRING,
MI_PRODID TYPE STRING,
MO_PRODID TYPE STRING,
PROPOSE_DATE TYPE STRING,
CONTACT TYPE STRING,
SAVE_IMMEDIATELY TYPE STRING,
NOTICE TYPE STRING,
SEP_MIDOC TYPE STRING,
SPRAS TYPE STRING,
TEXT50 TYPE STRING,
PROCESS TYPE STRING,
VARAMT TYPE STRING,
VARAPT TYPE STRING,
VARSP TYPE STRING,
FLDVIS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ECAMIOVAR_COMPL_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_ECAMIOVAR_COMPL_STR-MANDT sy-vline 
WA_ECAMIOVAR_COMPL_STR-PRVAR sy-vline 
WA_ECAMIOVAR_COMPL_STR-MI_PRODID sy-vline 
WA_ECAMIOVAR_COMPL_STR-MO_PRODID sy-vline 
WA_ECAMIOVAR_COMPL_STR-PROPOSE_DATE sy-vline 
WA_ECAMIOVAR_COMPL_STR-CONTACT sy-vline 
WA_ECAMIOVAR_COMPL_STR-SAVE_IMMEDIATELY sy-vline 
WA_ECAMIOVAR_COMPL_STR-NOTICE sy-vline 
WA_ECAMIOVAR_COMPL_STR-SEP_MIDOC sy-vline 
WA_ECAMIOVAR_COMPL_STR-SPRAS sy-vline 
WA_ECAMIOVAR_COMPL_STR-TEXT50 sy-vline 
WA_ECAMIOVAR_COMPL_STR-PROCESS sy-vline 
WA_ECAMIOVAR_COMPL_STR-VARAMT sy-vline 
WA_ECAMIOVAR_COMPL_STR-VARAPT sy-vline 
WA_ECAMIOVAR_COMPL_STR-VARSP sy-vline 
WA_ECAMIOVAR_COMPL_STR-FLDVIS sy-vline      INTO ld_text SEPARATED BY SPACE.

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