ABAP Select data from SAP table MSAM10_PARTNER_HEADER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MSAM10_PARTNER_HEADER 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 MSAM10_PARTNER_HEADER. 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 MSAM10_PARTNER_HEADER 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_MSAM10_PARTNER_HEADER TYPE STANDARD TABLE OF MSAM10_PARTNER_HEADER,
      WA_MSAM10_PARTNER_HEADER TYPE MSAM10_PARTNER_HEADER,
      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: <MSAM10_PARTNER_HEADER> TYPE MSAM10_PARTNER_HEADER.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MSAM10_PARTNER_HEADER.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MSAM10_PARTNER_HEADER
  INTO TABLE IT_MSAM10_PARTNER_HEADER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSAM10_PARTNER_HEADER
*  INTO TABLE @DATA(IT_MSAM10_PARTNER_HEADER2).
*--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_MSAM10_PARTNER_HEADER INDEX 1 INTO DATA(WA_MSAM10_PARTNER_HEADER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MSAM10_PARTNER_HEADER ASSIGNING <MSAM10_PARTNER_HEADER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSAM10_PARTNER_HEADER>-PARTNER_KEY = 1.
<MSAM10_PARTNER_HEADER>-PARTNER_TYPE = 1.
<MSAM10_PARTNER_HEADER>-PARTNER_ID = 1.
<MSAM10_PARTNER_HEADER>-ADDRESS_ID = 1.
<MSAM10_PARTNER_HEADER>-NAME1 = 1.

ENDLOOP.

LOOP AT IT_MSAM10_PARTNER_HEADER INTO WA_MSAM10_PARTNER_HEADER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSAM10_PARTNER_HEADER-NAME2, sy-vline,
  WA_MSAM10_PARTNER_HEADER-NAME3, sy-vline,
  WA_MSAM10_PARTNER_HEADER-NAME4, sy-vline,
  WA_MSAM10_PARTNER_HEADER-SORT1, sy-vline,
  WA_MSAM10_PARTNER_HEADER-BUILDING, sy-vline,
  WA_MSAM10_PARTNER_HEADER-ROOMNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSAM10_PARTNER_HEADER 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_MSAM10_PARTNER_HEADER 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_MSAM10_PARTNER_HEADER INTO WA_MSAM10_PARTNER_HEADER.


*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 PARTNER_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MSAM10_PARTNER_HEADER-PARTNER_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSAM10_PARTNER_HEADER-PARTNER_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDRESS_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MSAM10_PARTNER_HEADER-ADDRESS_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSAM10_PARTNER_HEADER-ADDRESS_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_MSAM10_PARTNER_HEADER-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSAM10_PARTNER_HEADER-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MSAM10_PARTNER_HEADER-KUNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSAM10_PARTNER_HEADER-KUNUM.
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_MSAM10_PARTNER_HEADER_STR, 
PARTNER_KEY TYPE STRING,
PARTNER_TYPE TYPE STRING,
PARTNER_ID TYPE STRING,
ADDRESS_ID TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
SORT1 TYPE STRING,
BUILDING TYPE STRING,
ROOMNUMBER TYPE STRING,
FLOOR TYPE STRING,
STREET TYPE STRING,
STR_SUPPL1 TYPE STRING,
STR_SUPPL2 TYPE STRING,
STR_SUPPL3 TYPE STRING,
CITY1 TYPE STRING,
CITY2 TYPE STRING,
POST_CODE1 TYPE STRING,
POST_CODE2 TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
PO_BOX TYPE STRING,
LANGU TYPE STRING,
TEL_NUMBER TYPE STRING,
TEL_EXTENSION TYPE STRING,
MOB_NUMBER TYPE STRING,
FAX_NUMBER TYPE STRING,
FAX_EXTENSION TYPE STRING,
TLX_NUMBER TYPE STRING,
TTX_NUMBER TYPE STRING,
NAME_LIST TYPE STRING,
REMARK TYPE STRING,
TIME_ZONE TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
HOUSE_NUM1 TYPE STRING,
ENHANCEMENT_FLAG TYPE STRING,
KEY_COUNTER TYPE STRING,
KUNUM TYPE STRING,
NAME_ORG1 TYPE STRING,
NAME_ORG2 TYPE STRING,
NAME_ORG3 TYPE STRING,
NAME_ORG4 TYPE STRING,
XSEXM TYPE STRING,
XSEXF TYPE STRING,
BIRTHDT TYPE STRING,
LOCATION TYPE STRING,
HOUSE_NUM2 TYPE STRING,
LEGAL_ENTY TYPE STRING,
TITLE_MEDI TYPE STRING,
LONGITUDE TYPE STRING,
LATITUDE TYPE STRING,
ALTITUDE TYPE STRING,
SRCID TYPE STRING,
PRECISID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSAM10_PARTNER_HEADER_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_MSAM10_PARTNER_HEADER_STR-PARTNER_KEY sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-PARTNER_TYPE sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-PARTNER_ID sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-ADDRESS_ID sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-NAME1 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-NAME2 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-NAME3 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-NAME4 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-SORT1 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-BUILDING sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-ROOMNUMBER sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-FLOOR sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-STREET sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-STR_SUPPL1 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-STR_SUPPL2 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-STR_SUPPL3 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-CITY1 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-CITY2 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-POST_CODE1 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-POST_CODE2 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-COUNTRY sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-REGION sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-PO_BOX sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-LANGU sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-TEL_NUMBER sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-TEL_EXTENSION sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-MOB_NUMBER sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-FAX_NUMBER sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-FAX_EXTENSION sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-TLX_NUMBER sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-TTX_NUMBER sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-NAME_LIST sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-REMARK sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-TIME_ZONE sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-DATUM sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-UZEIT sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-HOUSE_NUM1 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-ENHANCEMENT_FLAG sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-KEY_COUNTER sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-KUNUM sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-NAME_ORG1 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-NAME_ORG2 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-NAME_ORG3 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-NAME_ORG4 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-XSEXM sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-XSEXF sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-BIRTHDT sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-LOCATION sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-HOUSE_NUM2 sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-LEGAL_ENTY sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-TITLE_MEDI sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-LONGITUDE sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-LATITUDE sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-ALTITUDE sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-SRCID sy-vline 
WA_MSAM10_PARTNER_HEADER_STR-PRECISID sy-vline      INTO ld_text SEPARATED BY SPACE.

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