ABAP Select data from SAP table IMGECOMPRELBR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMGECOMPRELBR
*  INTO TABLE @DATA(IT_IMGECOMPRELBR2).
*--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_IMGECOMPRELBR INDEX 1 INTO DATA(WA_IMGECOMPRELBR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMGECOMPRELBR>-MANDT = 1.
<IMGECOMPRELBR>-MICROGENCOMPNCONTRACT = 1.
<IMGECOMPRELBR>-MICROGENGNRTRCONTRACT = 1.
<IMGECOMPRELBR>-MICROGENCNSMRCONTRACT = 1.
<IMGECOMPRELBR>-MICROGENBUSINESSPARTNER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMGECOMPRELBR-MICROGENCONTRACTACCOUNT, sy-vline,
  WA_IMGECOMPRELBR-MICROGENRELSHPVALDFROMDATE, sy-vline,
  WA_IMGECOMPRELBR-MICROGENRELSHPVALDTODATE, sy-vline,
  WA_IMGECOMPRELBR-MICROGENBILLPERIODVALUE, sy-vline,
  WA_IMGECOMPRELBR-MICROGENBILLPERIODSTARTDATE, sy-vline,
  WA_IMGECOMPRELBR-MICROGENBILLPERIODENDDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMGECOMPRELBR 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_IMGECOMPRELBR 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_IMGECOMPRELBR INTO WA_IMGECOMPRELBR.


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

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

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

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

*Conversion exit ALPHA, internal->external for field MICROGENCONTRACTACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMGECOMPRELBR-MICROGENCONTRACTACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMGECOMPRELBR-MICROGENCONTRACTACCOUNT.
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_IMGECOMPRELBR_STR, 
MANDT TYPE STRING,
MICROGENCOMPNCONTRACT TYPE STRING,
MICROGENGNRTRCONTRACT TYPE STRING,
MICROGENCNSMRCONTRACT TYPE STRING,
MICROGENBUSINESSPARTNER TYPE STRING,
MICROGENCONTRACTACCOUNT TYPE STRING,
MICROGENRELSHPVALDFROMDATE TYPE STRING,
MICROGENRELSHPVALDTODATE TYPE STRING,
MICROGENBILLPERIODVALUE TYPE STRING,
MICROGENBILLPERIODSTARTDATE TYPE STRING,
MICROGENBILLPERIODENDDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMGECOMPRELBR_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_IMGECOMPRELBR_STR-MANDT sy-vline 
WA_IMGECOMPRELBR_STR-MICROGENCOMPNCONTRACT sy-vline 
WA_IMGECOMPRELBR_STR-MICROGENGNRTRCONTRACT sy-vline 
WA_IMGECOMPRELBR_STR-MICROGENCNSMRCONTRACT sy-vline 
WA_IMGECOMPRELBR_STR-MICROGENBUSINESSPARTNER sy-vline 
WA_IMGECOMPRELBR_STR-MICROGENCONTRACTACCOUNT sy-vline 
WA_IMGECOMPRELBR_STR-MICROGENRELSHPVALDFROMDATE sy-vline 
WA_IMGECOMPRELBR_STR-MICROGENRELSHPVALDTODATE sy-vline 
WA_IMGECOMPRELBR_STR-MICROGENBILLPERIODVALUE sy-vline 
WA_IMGECOMPRELBR_STR-MICROGENBILLPERIODSTARTDATE sy-vline 
WA_IMGECOMPRELBR_STR-MICROGENBILLPERIODENDDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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