ABAP Select data from SAP table CURTP_S_MB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CURTP_S_MB
*  INTO TABLE @DATA(IT_CURTP_S_MB2).
*--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_CURTP_S_MB INDEX 1 INTO DATA(WA_CURTP_S_MB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CURTP_S_MB>-CURTM = 1.
<CURTP_S_MB>-CURTP = 1.
<CURTP_S_MB>-WAERS = 1.
<CURTP_S_MB>-KURST = 1.
<CURTP_S_MB>-CURDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CURTP_S_MB-XMLAK, sy-vline,
  WA_CURTP_S_MB-UMCUR, sy-vline,
  WA_CURTP_S_MB-UMWAE, sy-vline,
  WA_CURTP_S_MB-UMKUT, sy-vline,
  WA_CURTP_S_MB-UMCUD, sy-vline,
  WA_CURTP_S_MB-UMXML, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CURTP_S_MB 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_CURTP_S_MB 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_CURTP_S_MB INTO WA_CURTP_S_MB.


*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 RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CURTP_S_MB-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CURTP_S_MB-RLDNR.
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_CURTP_S_MB_STR, 
CURTM TYPE STRING,
CURTP TYPE STRING,
WAERS TYPE STRING,
KURST TYPE STRING,
CURDT TYPE STRING,
XMLAK TYPE STRING,
UMCUR TYPE STRING,
UMWAE TYPE STRING,
UMKUT TYPE STRING,
UMCUD TYPE STRING,
UMXML TYPE STRING,
AWEWR TYPE STRING,
UMAWE TYPE STRING,
VWERT TYPE STRING,
EXWRT TYPE STRING,
UMEXW TYPE STRING,
EXALT TYPE STRING,
EXBUALT TYPE STRING,
XSUBS TYPE STRING,
UMXSU TYPE STRING,
CURSR TYPE STRING,
UMRSR TYPE STRING,
RLDNR TYPE STRING,
EXT_CURTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CURTP_S_MB_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_CURTP_S_MB_STR-CURTM sy-vline 
WA_CURTP_S_MB_STR-CURTP sy-vline 
WA_CURTP_S_MB_STR-WAERS sy-vline 
WA_CURTP_S_MB_STR-KURST sy-vline 
WA_CURTP_S_MB_STR-CURDT sy-vline 
WA_CURTP_S_MB_STR-XMLAK sy-vline 
WA_CURTP_S_MB_STR-UMCUR sy-vline 
WA_CURTP_S_MB_STR-UMWAE sy-vline 
WA_CURTP_S_MB_STR-UMKUT sy-vline 
WA_CURTP_S_MB_STR-UMCUD sy-vline 
WA_CURTP_S_MB_STR-UMXML sy-vline 
WA_CURTP_S_MB_STR-AWEWR sy-vline 
WA_CURTP_S_MB_STR-UMAWE sy-vline 
WA_CURTP_S_MB_STR-VWERT sy-vline 
WA_CURTP_S_MB_STR-EXWRT sy-vline 
WA_CURTP_S_MB_STR-UMEXW sy-vline 
WA_CURTP_S_MB_STR-EXALT sy-vline 
WA_CURTP_S_MB_STR-EXBUALT sy-vline 
WA_CURTP_S_MB_STR-XSUBS sy-vline 
WA_CURTP_S_MB_STR-UMXSU sy-vline 
WA_CURTP_S_MB_STR-CURSR sy-vline 
WA_CURTP_S_MB_STR-UMRSR sy-vline 
WA_CURTP_S_MB_STR-RLDNR sy-vline 
WA_CURTP_S_MB_STR-EXT_CURTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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