ABAP Select data from SAP table MOBPUR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MOBPUR
*  INTO TABLE @DATA(IT_MOBPUR2).
*--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_MOBPUR INDEX 1 INTO DATA(WA_MOBPUR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MOBPUR>-MANDT = 1.
<MOBPUR>-TRTYP = 1.
<MOBPUR>-UCCHA = 1.
<MOBPUR>-BSTNR = 1.
<MOBPUR>-BSTPO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MOBPUR-DATUM, sy-vline,
  WA_MOBPUR-UCREF, sy-vline,
  WA_MOBPUR-REF_WERKS, sy-vline,
  WA_MOBPUR-REF_MATNR, sy-vline,
  WA_MOBPUR-REF_CHARG, sy-vline,
  WA_MOBPUR-AEDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MOBPUR 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_MOBPUR 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_MOBPUR INTO WA_MOBPUR.


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

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

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

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

*Conversion exit CUNIT, internal->external for field CHAME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MOBPUR-CHAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MOBPUR-CHAME.
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_MOBPUR_STR, 
MANDT TYPE STRING,
TRTYP TYPE STRING,
UCCHA TYPE STRING,
BSTNR TYPE STRING,
BSTPO TYPE STRING,
DATUM TYPE STRING,
UCREF TYPE STRING,
REF_WERKS TYPE STRING,
REF_MATNR TYPE STRING,
REF_CHARG TYPE STRING,
AEDAT TYPE STRING,
LVORM TYPE STRING,
ERSDA TYPE STRING,
ERNAM TYPE STRING,
AENAM TYPE STRING,
LAEDA TYPE STRING,
VERAB TYPE STRING,
VFDAT TYPE STRING,
ZUSCH TYPE STRING,
ZUSTD TYPE STRING,
ZAEDT TYPE STRING,
LIFNR TYPE STRING,
LICHA TYPE STRING,
VLCHA TYPE STRING,
VLWRK TYPE STRING,
VLMAT TYPE STRING,
BATCH_ID TYPE STRING,
XPCBT TYPE STRING,
BWTAR TYPE STRING,
CHAME TYPE STRING,
LWEDT TYPE STRING,
FVDT1 TYPE STRING,
FVDT2 TYPE STRING,
FVDT3 TYPE STRING,
FVDT4 TYPE STRING,
FVDT5 TYPE STRING,
FVDT6 TYPE STRING,
HERKL TYPE STRING,
HERKR TYPE STRING,
MTVER TYPE STRING,
QNDAT TYPE STRING,
HSDAT TYPE STRING,
CUOBJ_BM TYPE STRING,
DEACT_BM TYPE STRING,
BATCH_TYPE TYPE STRING,
SGT_SCAT TYPE STRING,
ERSDA_TMSTP TYPE STRING,
ERSDA_TZ_SYS TYPE STRING,
ERSDA_TZ_USR TYPE STRING,
ZFDAT TYPE STRING,
CREATION_DATETIME TYPE STRING,
LASTCHANGE_DATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MOBPUR_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_MOBPUR_STR-MANDT sy-vline 
WA_MOBPUR_STR-TRTYP sy-vline 
WA_MOBPUR_STR-UCCHA sy-vline 
WA_MOBPUR_STR-BSTNR sy-vline 
WA_MOBPUR_STR-BSTPO sy-vline 
WA_MOBPUR_STR-DATUM sy-vline 
WA_MOBPUR_STR-UCREF sy-vline 
WA_MOBPUR_STR-REF_WERKS sy-vline 
WA_MOBPUR_STR-REF_MATNR sy-vline 
WA_MOBPUR_STR-REF_CHARG sy-vline 
WA_MOBPUR_STR-AEDAT sy-vline 
WA_MOBPUR_STR-LVORM sy-vline 
WA_MOBPUR_STR-ERSDA sy-vline 
WA_MOBPUR_STR-ERNAM sy-vline 
WA_MOBPUR_STR-AENAM sy-vline 
WA_MOBPUR_STR-LAEDA sy-vline 
WA_MOBPUR_STR-VERAB sy-vline 
WA_MOBPUR_STR-VFDAT sy-vline 
WA_MOBPUR_STR-ZUSCH sy-vline 
WA_MOBPUR_STR-ZUSTD sy-vline 
WA_MOBPUR_STR-ZAEDT sy-vline 
WA_MOBPUR_STR-LIFNR sy-vline 
WA_MOBPUR_STR-LICHA sy-vline 
WA_MOBPUR_STR-VLCHA sy-vline 
WA_MOBPUR_STR-VLWRK sy-vline 
WA_MOBPUR_STR-VLMAT sy-vline 
WA_MOBPUR_STR-BATCH_ID sy-vline 
WA_MOBPUR_STR-XPCBT sy-vline 
WA_MOBPUR_STR-BWTAR sy-vline 
WA_MOBPUR_STR-CHAME sy-vline 
WA_MOBPUR_STR-LWEDT sy-vline 
WA_MOBPUR_STR-FVDT1 sy-vline 
WA_MOBPUR_STR-FVDT2 sy-vline 
WA_MOBPUR_STR-FVDT3 sy-vline 
WA_MOBPUR_STR-FVDT4 sy-vline 
WA_MOBPUR_STR-FVDT5 sy-vline 
WA_MOBPUR_STR-FVDT6 sy-vline 
WA_MOBPUR_STR-HERKL sy-vline 
WA_MOBPUR_STR-HERKR sy-vline 
WA_MOBPUR_STR-MTVER sy-vline 
WA_MOBPUR_STR-QNDAT sy-vline 
WA_MOBPUR_STR-HSDAT sy-vline 
WA_MOBPUR_STR-CUOBJ_BM sy-vline 
WA_MOBPUR_STR-DEACT_BM sy-vline 
WA_MOBPUR_STR-BATCH_TYPE sy-vline 
WA_MOBPUR_STR-SGT_SCAT sy-vline 
WA_MOBPUR_STR-ERSDA_TMSTP sy-vline 
WA_MOBPUR_STR-ERSDA_TZ_SYS sy-vline 
WA_MOBPUR_STR-ERSDA_TZ_USR sy-vline 
WA_MOBPUR_STR-ZFDAT sy-vline 
WA_MOBPUR_STR-CREATION_DATETIME sy-vline 
WA_MOBPUR_STR-LASTCHANGE_DATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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