ABAP Select data from SAP table RMXTS_TRIAL_RCP_FRML_PO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMXTS_TRIAL_RCP_FRML_PO
*  INTO TABLE @DATA(IT_RMXTS_TRIAL_RCP_FRML_PO2).
*--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_RMXTS_TRIAL_RCP_FRML_PO INDEX 1 INTO DATA(WA_RMXTS_TRIAL_RCP_FRML_PO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMXTS_TRIAL_RCP_FRML_PO>-TRIAL_ID = 1.
<RMXTS_TRIAL_RCP_FRML_PO>-RCP_GUID = 1.
<RMXTS_TRIAL_RCP_FRML_PO>-LEVEL = 1.
<RMXTS_TRIAL_RCP_FRML_PO>-STARTFRML = 1.
<RMXTS_TRIAL_RCP_FRML_PO>-HAS_BYPROD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMXTS_TRIAL_RCP_FRML_PO-LINENO, sy-vline,
  WA_RMXTS_TRIAL_RCP_FRML_PO-LINEMOD, sy-vline,
  WA_RMXTS_TRIAL_RCP_FRML_PO-MANDT, sy-vline,
  WA_RMXTS_TRIAL_RCP_FRML_PO-RECN, sy-vline,
  WA_RMXTS_TRIAL_RCP_FRML_PO-RECNMST, sy-vline,
  WA_RMXTS_TRIAL_RCP_FRML_PO-RECNROOT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMXTS_TRIAL_RCP_FRML_PO 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_RMXTS_TRIAL_RCP_FRML_PO 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_RMXTS_TRIAL_RCP_FRML_PO INTO WA_RMXTS_TRIAL_RCP_FRML_PO.


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

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

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

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

*Conversion exit SPEC1, internal->external for field SUBID
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_RMXTS_TRIAL_RCP_FRML_PO-SUBID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXTS_TRIAL_RCP_FRML_PO-SUBID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RMXTS_TRIAL_RCP_FRML_PO-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXTS_TRIAL_RCP_FRML_PO-UNIT.
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_RMXTS_TRIAL_RCP_FRML_PO_STR, 
TRIAL_ID TYPE STRING,
RCP_GUID TYPE STRING,
LEVEL TYPE STRING,
STARTFRML TYPE STRING,
HAS_BYPROD TYPE STRING,
LINENO TYPE STRING,
LINEMOD TYPE STRING,
MANDT TYPE STRING,
RECN TYPE STRING,
RECNMST TYPE STRING,
RECNROOT TYPE STRING,
RECNALGRP TYPE STRING,
RECN_DATA TYPE STRING,
SUBRECN TYPE STRING,
ACTN TYPE STRING,
MATNR TYPE STRING,
SUBID TYPE STRING,
POSNR TYPE STRING,
ROLE TYPE STRING,
STD_ALT_FLG TYPE STRING,
FLG_ALT_EXIST TYPE STRING,
ALT_POSNR TYPE STRING,
PO_FLG TYPE STRING,
COMPTGT TYPE STRING,
COMPTGT_ERR_FLG TYPE STRING,
OPLOW TYPE STRING,
COMPLOW TYPE STRING,
OPUP TYPE STRING,
COMPUPP TYPE STRING,
UNIT TYPE STRING,
EXCVAL TYPE STRING,
ADDVAL TYPE STRING,
COMPTGT_FLT TYPE STRING,
COMPLOW_FLT TYPE STRING,
COMPUPP_FLT TYPE STRING,
OVR_FACTOR TYPE STRING,
DEF_EXPL_FLG TYPE STRING,
FLG_1_N_MAT TYPE STRING,
FLG_HAS_1_N_MAT TYPE STRING,
FLG_OUT TYPE STRING,
STREAM_FLG TYPE STRING,
STREAM_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMXTS_TRIAL_RCP_FRML_PO_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_RMXTS_TRIAL_RCP_FRML_PO_STR-TRIAL_ID sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-RCP_GUID sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-LEVEL sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-STARTFRML sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-HAS_BYPROD sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-LINENO sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-LINEMOD sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-MANDT sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-RECN sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-RECNMST sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-RECNROOT sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-RECNALGRP sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-RECN_DATA sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-SUBRECN sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-ACTN sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-MATNR sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-SUBID sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-POSNR sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-ROLE sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-STD_ALT_FLG sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-FLG_ALT_EXIST sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-ALT_POSNR sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-PO_FLG sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-COMPTGT sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-COMPTGT_ERR_FLG sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-OPLOW sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-COMPLOW sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-OPUP sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-COMPUPP sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-UNIT sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-EXCVAL sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-ADDVAL sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-COMPTGT_FLT sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-COMPLOW_FLT sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-COMPUPP_FLT sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-OVR_FACTOR sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-DEF_EXPL_FLG sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-FLG_1_N_MAT sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-FLG_HAS_1_N_MAT sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-FLG_OUT sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-STREAM_FLG sy-vline 
WA_RMXTS_TRIAL_RCP_FRML_PO_STR-STREAM_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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