ABAP Select data from SAP table IMRC_IMPH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMRC_IMPH
*  INTO TABLE @DATA(IT_IMRC_IMPH2).
*--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_IMRC_IMPH INDEX 1 INTO DATA(WA_IMRC_IMPH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMRC_IMPH>-MANDT = 1.
<IMRC_IMPH>-POINT = 1.
<IMRC_IMPH>-SUBID = 1.
<IMRC_IMPH>-CANCL = 1.
<IMRC_IMPH>-DATLO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMRC_IMPH-TIMLO, sy-vline,
  WA_IMRC_IMPH-INVLO, sy-vline,
  WA_IMRC_IMPH-DATHI, sy-vline,
  WA_IMRC_IMPH-TIMHI, sy-vline,
  WA_IMRC_IMPH-INVHI, sy-vline,
  WA_IMRC_IMPH-TRANS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMRC_IMPH 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_IMRC_IMPH 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_IMRC_IMPH INTO WA_IMRC_IMPH.


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

*Conversion exit ALPHA, internal->external for field TRANS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMRC_IMPH-TRANS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMRC_IMPH-TRANS.
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_IMRC_IMPH_STR, 
MANDT TYPE STRING,
POINT TYPE STRING,
SUBID TYPE STRING,
CANCL TYPE STRING,
DATLO TYPE STRING,
TIMLO TYPE STRING,
INVLO TYPE STRING,
DATHI TYPE STRING,
TIMHI TYPE STRING,
INVHI TYPE STRING,
TRANS TYPE STRING,
DATCR TYPE STRING,
NAMCR TYPE STRING,
GENER TYPE STRING,
UPDAT TYPE STRING,
INDUPD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMRC_IMPH_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_IMRC_IMPH_STR-MANDT sy-vline 
WA_IMRC_IMPH_STR-POINT sy-vline 
WA_IMRC_IMPH_STR-SUBID sy-vline 
WA_IMRC_IMPH_STR-CANCL sy-vline 
WA_IMRC_IMPH_STR-DATLO sy-vline 
WA_IMRC_IMPH_STR-TIMLO sy-vline 
WA_IMRC_IMPH_STR-INVLO sy-vline 
WA_IMRC_IMPH_STR-DATHI sy-vline 
WA_IMRC_IMPH_STR-TIMHI sy-vline 
WA_IMRC_IMPH_STR-INVHI sy-vline 
WA_IMRC_IMPH_STR-TRANS sy-vline 
WA_IMRC_IMPH_STR-DATCR sy-vline 
WA_IMRC_IMPH_STR-NAMCR sy-vline 
WA_IMRC_IMPH_STR-GENER sy-vline 
WA_IMRC_IMPH_STR-UPDAT sy-vline 
WA_IMRC_IMPH_STR-INDUPD sy-vline      INTO ld_text SEPARATED BY SPACE.

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