ABAP Select data from SAP table MMPUR_OA_S_UI_CONTRACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPUR_OA_S_UI_CONTRACT
*  INTO TABLE @DATA(IT_MMPUR_OA_S_UI_CONTRACT2).
*--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_MMPUR_OA_S_UI_CONTRACT INDEX 1 INTO DATA(WA_MMPUR_OA_S_UI_CONTRACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPUR_OA_S_UI_CONTRACT>-EBELN = 1.
<MMPUR_OA_S_UI_CONTRACT>-BSART = 1.
<MMPUR_OA_S_UI_CONTRACT>-LIFNR = 1.
<MMPUR_OA_S_UI_CONTRACT>-BEDAT = 1.
<MMPUR_OA_S_UI_CONTRACT>-AEDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPUR_OA_S_UI_CONTRACT-EKORG, sy-vline,
  WA_MMPUR_OA_S_UI_CONTRACT-EKGRP, sy-vline,
  WA_MMPUR_OA_S_UI_CONTRACT-WAERS, sy-vline,
  WA_MMPUR_OA_S_UI_CONTRACT-BUKRS, sy-vline,
  WA_MMPUR_OA_S_UI_CONTRACT-INCO1, sy-vline,
  WA_MMPUR_OA_S_UI_CONTRACT-INCO2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMPUR_OA_S_UI_CONTRACT 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_MMPUR_OA_S_UI_CONTRACT 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_MMPUR_OA_S_UI_CONTRACT INTO WA_MMPUR_OA_S_UI_CONTRACT.


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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMPUR_OA_S_UI_CONTRACT-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPUR_OA_S_UI_CONTRACT-LIFNR.
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_MMPUR_OA_S_UI_CONTRACT_STR, 
EBELN TYPE STRING,
BSART TYPE STRING,
LIFNR TYPE STRING,
BEDAT TYPE STRING,
AEDAT TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
WAERS TYPE STRING,
BUKRS TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
ZTERM TYPE STRING,
ZBD1T TYPE STRING,
ZBD2T TYPE STRING,
ZBD3T TYPE STRING,
ZBD1P TYPE STRING,
ZBD2P TYPE STRING,
BSTYP TYPE STRING,
EBELP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMPUR_OA_S_UI_CONTRACT_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_MMPUR_OA_S_UI_CONTRACT_STR-EBELN sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-BSART sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-LIFNR sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-BEDAT sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-AEDAT sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-EKORG sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-EKGRP sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-WAERS sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-BUKRS sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-INCO1 sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-INCO2 sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-ZTERM sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-ZBD1T sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-ZBD2T sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-ZBD3T sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-ZBD1P sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-ZBD2P sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-BSTYP sy-vline 
WA_MMPUR_OA_S_UI_CONTRACT_STR-EBELP sy-vline      INTO ld_text SEPARATED BY SPACE.

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