ABAP Select data from SAP table CMS_RE_STR_PRT_BASIC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMS_RE_STR_PRT_BASIC
*  INTO TABLE @DATA(IT_CMS_RE_STR_PRT_BASIC2).
*--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_CMS_RE_STR_PRT_BASIC INDEX 1 INTO DATA(WA_CMS_RE_STR_PRT_BASIC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMS_RE_STR_PRT_BASIC>-BLD_PART_TYPE = 1.
<CMS_RE_STR_PRT_BASIC>-PART_COND = 1.
<CMS_RE_STR_PRT_BASIC>-MAIN_USAGE = 1.
<CMS_RE_STR_PRT_BASIC>-ADD_USAGE_1 = 1.
<CMS_RE_STR_PRT_BASIC>-ADD_USAGE_2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMS_RE_STR_PRT_BASIC-BLD_METHOD_ROOF, sy-vline,
  WA_CMS_RE_STR_PRT_BASIC-BLD_METHOD_BODY, sy-vline,
  WA_CMS_RE_STR_PRT_BASIC-BLD_METD_CELLAR, sy-vline,
  WA_CMS_RE_STR_PRT_BASIC-UTILIZATION, sy-vline,
  WA_CMS_RE_STR_PRT_BASIC-PART_DESC, sy-vline,
  WA_CMS_RE_STR_PRT_BASIC-COMM_USAGE_PCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMS_RE_STR_PRT_BASIC 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_CMS_RE_STR_PRT_BASIC 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_CMS_RE_STR_PRT_BASIC INTO WA_CMS_RE_STR_PRT_BASIC.


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

*Conversion exit ALPHA, internal->external for field IS_SUB_AST_CREA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMS_RE_STR_PRT_BASIC-IS_SUB_AST_CREA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMS_RE_STR_PRT_BASIC-IS_SUB_AST_CREA.
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_CMS_RE_STR_PRT_BASIC_STR, 
BLD_PART_TYPE TYPE STRING,
PART_COND TYPE STRING,
MAIN_USAGE TYPE STRING,
ADD_USAGE_1 TYPE STRING,
ADD_USAGE_2 TYPE STRING,
BLD_METHOD_ROOF TYPE STRING,
BLD_METHOD_BODY TYPE STRING,
BLD_METD_CELLAR TYPE STRING,
UTILIZATION TYPE STRING,
PART_DESC TYPE STRING,
COMM_USAGE_PCT TYPE STRING,
OTHER_USG_FLG TYPE STRING,
REF_OBJ_PRT_GUID TYPE STRING,
IS_SUB_AST_CREA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMS_RE_STR_PRT_BASIC_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_CMS_RE_STR_PRT_BASIC_STR-BLD_PART_TYPE sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-PART_COND sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-MAIN_USAGE sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-ADD_USAGE_1 sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-ADD_USAGE_2 sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-BLD_METHOD_ROOF sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-BLD_METHOD_BODY sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-BLD_METD_CELLAR sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-UTILIZATION sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-PART_DESC sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-COMM_USAGE_PCT sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-OTHER_USG_FLG sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-REF_OBJ_PRT_GUID sy-vline 
WA_CMS_RE_STR_PRT_BASIC_STR-IS_SUB_AST_CREA sy-vline      INTO ld_text SEPARATED BY SPACE.

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