ABAP Select data from SAP table ICRREFPLNGSCPHDR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICRREFPLNGSCPHDR
*  INTO TABLE @DATA(IT_ICRREFPLNGSCPHDR2).
*--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_ICRREFPLNGSCPHDR INDEX 1 INTO DATA(WA_ICRREFPLNGSCPHDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICRREFPLNGSCPHDR>-MANDT = 1.
<ICRREFPLNGSCPHDR>-DOCUMENTID = 1.
<ICRREFPLNGSCPHDR>-PLANNINGSCOPEALTERNATIVE = 1.
<ICRREFPLNGSCPHDR>-SOURCEMATERIAL = 1.
<ICRREFPLNGSCPHDR>-SOURCEPLANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICRREFPLNGSCPHDR-SOURCEBOMUSAGE, sy-vline,
  WA_ICRREFPLNGSCPHDR-SOURCEBOMALTERNATIVE, sy-vline,
  WA_ICRREFPLNGSCPHDR-PLANT, sy-vline,
  WA_ICRREFPLNGSCPHDR-PRODUCTIONPLANTNAME, sy-vline,
  WA_ICRREFPLNGSCPHDR-MBOMUSAGE, sy-vline,
  WA_ICRREFPLNGSCPHDR-TARGETBOMUSAGETEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICRREFPLNGSCPHDR 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_ICRREFPLNGSCPHDR 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_ICRREFPLNGSCPHDR INTO WA_ICRREFPLNGSCPHDR.


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

*Conversion exit MATN1, internal->external for field SOURCEMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ICRREFPLNGSCPHDR-SOURCEMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICRREFPLNGSCPHDR-SOURCEMATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field TARGETMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ICRREFPLNGSCPHDR-TARGETMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICRREFPLNGSCPHDR-TARGETMATERIAL.
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_ICRREFPLNGSCPHDR_STR, 
MANDT TYPE STRING,
DOCUMENTID TYPE STRING,
PLANNINGSCOPEALTERNATIVE TYPE STRING,
SOURCEMATERIAL TYPE STRING,
SOURCEPLANT TYPE STRING,
SOURCEBOMUSAGE TYPE STRING,
SOURCEBOMALTERNATIVE TYPE STRING,
PLANT TYPE STRING,
PRODUCTIONPLANTNAME TYPE STRING,
MBOMUSAGE TYPE STRING,
TARGETBOMUSAGETEXT TYPE STRING,
TARGETMATERIAL TYPE STRING,
TARGETMATERIALNAME TYPE STRING,
ISVERSIONBILLOFMATERIAL TYPE STRING,
SOURCEBOMISVERSIONED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICRREFPLNGSCPHDR_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_ICRREFPLNGSCPHDR_STR-MANDT sy-vline 
WA_ICRREFPLNGSCPHDR_STR-DOCUMENTID sy-vline 
WA_ICRREFPLNGSCPHDR_STR-PLANNINGSCOPEALTERNATIVE sy-vline 
WA_ICRREFPLNGSCPHDR_STR-SOURCEMATERIAL sy-vline 
WA_ICRREFPLNGSCPHDR_STR-SOURCEPLANT sy-vline 
WA_ICRREFPLNGSCPHDR_STR-SOURCEBOMUSAGE sy-vline 
WA_ICRREFPLNGSCPHDR_STR-SOURCEBOMALTERNATIVE sy-vline 
WA_ICRREFPLNGSCPHDR_STR-PLANT sy-vline 
WA_ICRREFPLNGSCPHDR_STR-PRODUCTIONPLANTNAME sy-vline 
WA_ICRREFPLNGSCPHDR_STR-MBOMUSAGE sy-vline 
WA_ICRREFPLNGSCPHDR_STR-TARGETBOMUSAGETEXT sy-vline 
WA_ICRREFPLNGSCPHDR_STR-TARGETMATERIAL sy-vline 
WA_ICRREFPLNGSCPHDR_STR-TARGETMATERIALNAME sy-vline 
WA_ICRREFPLNGSCPHDR_STR-ISVERSIONBILLOFMATERIAL sy-vline 
WA_ICRREFPLNGSCPHDR_STR-SOURCEBOMISVERSIONED sy-vline      INTO ld_text SEPARATED BY SPACE.

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