ABAP Select data from SAP table ICA_S_CONS_ELIM_HDR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICA_S_CONS_ELIM_HDR
*  INTO TABLE @DATA(IT_ICA_S_CONS_ELIM_HDR2).
*--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_ICA_S_CONS_ELIM_HDR INDEX 1 INTO DATA(WA_ICA_S_CONS_ELIM_HDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICA_S_CONS_ELIM_HDR>-DOCTY = 1.
<ICA_S_CONS_ELIM_HDR>-RCONGR = 1.
<ICA_S_CONS_ELIM_HDR>-RBUNIT = 1.
<ICA_S_CONS_ELIM_HDR>-RBUPTR = 1.
<ICA_S_CONS_ELIM_HDR>-COICU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICA_S_CONS_ELIM_HDR-COIAC, sy-vline,
  WA_ICA_S_CONS_ELIM_HDR-COINR, sy-vline,
  WA_ICA_S_CONS_ELIM_HDR-SGTXT, sy-vline,
  WA_ICA_S_CONS_ELIM_HDR-REFDOCNR, sy-vline,
  WA_ICA_S_CONS_ELIM_HDR-ORNDOCNR, sy-vline,
  WA_ICA_S_CONS_ELIM_HDR-RLEVL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICA_S_CONS_ELIM_HDR 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_ICA_S_CONS_ELIM_HDR 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_ICA_S_CONS_ELIM_HDR INTO WA_ICA_S_CONS_ELIM_HDR.


*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 AFIMC, internal->external for field RCONGR
CALL FUNCTION 'CONVERSION_EXIT_AFIMC_OUTPUT'
  EXPORTING
    input =                      WA_ICA_S_CONS_ELIM_HDR-RCONGR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICA_S_CONS_ELIM_HDR-RCONGR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AFIMC, internal->external for field RBUNIT
CALL FUNCTION 'CONVERSION_EXIT_AFIMC_OUTPUT'
  EXPORTING
    input =                      WA_ICA_S_CONS_ELIM_HDR-RBUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICA_S_CONS_ELIM_HDR-RBUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AFIMC, internal->external for field RBUPTR
CALL FUNCTION 'CONVERSION_EXIT_AFIMC_OUTPUT'
  EXPORTING
    input =                      WA_ICA_S_CONS_ELIM_HDR-RBUPTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICA_S_CONS_ELIM_HDR-RBUPTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AFIMC, internal->external for field COICU
CALL FUNCTION 'CONVERSION_EXIT_AFIMC_OUTPUT'
  EXPORTING
    input =                      WA_ICA_S_CONS_ELIM_HDR-COICU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICA_S_CONS_ELIM_HDR-COICU.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit GJAHR, internal->external for field REVYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ICA_S_CONS_ELIM_HDR-REVYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICA_S_CONS_ELIM_HDR-REVYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ICA_S_CONS_ELIM_HDR-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICA_S_CONS_ELIM_HDR-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICA_S_CONS_ELIM_HDR-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICA_S_CONS_ELIM_HDR-RVERS.
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_ICA_S_CONS_ELIM_HDR_STR, 
DOCTY TYPE STRING,
RCONGR TYPE STRING,
RBUNIT TYPE STRING,
RBUPTR TYPE STRING,
COICU TYPE STRING,
COIAC TYPE STRING,
COINR TYPE STRING,
SGTXT TYPE STRING,
REFDOCNR TYPE STRING,
ORNDOCNR TYPE STRING,
RLEVL TYPE STRING,
RRCTY TYPE STRING,
RVSDOCNR TYPE STRING,
REVYEAR TYPE STRING,
REVPERID TYPE STRING,
RLDNR TYPE STRING,
RDIMEN TYPE STRING,
RYEAR TYPE STRING,
POPER TYPE STRING,
RITCLG TYPE STRING,
RVERS TYPE STRING,
TIMESTAMP TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
USNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICA_S_CONS_ELIM_HDR_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_ICA_S_CONS_ELIM_HDR_STR-DOCTY sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-RCONGR sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-RBUNIT sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-RBUPTR sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-COICU sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-COIAC sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-COINR sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-SGTXT sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-REFDOCNR sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-ORNDOCNR sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-RLEVL sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-RRCTY sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-RVSDOCNR sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-REVYEAR sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-REVPERID sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-RLDNR sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-RDIMEN sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-RYEAR sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-POPER sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-RITCLG sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-RVERS sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-TIMESTAMP sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-CPUDT sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-CPUTM sy-vline 
WA_ICA_S_CONS_ELIM_HDR_STR-USNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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