ABAP Select data from SAP table EHSWAS_MNPOSAPI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHSWAS_MNPOSAPI
*  INTO TABLE @DATA(IT_EHSWAS_MNPOSAPI2).
*--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_EHSWAS_MNPOSAPI INDEX 1 INTO DATA(WA_EHSWAS_MNPOSAPI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHSWAS_MNPOSAPI>-MANDT = 1.
<EHSWAS_MNPOSAPI>-RECN = 1.
<EHSWAS_MNPOSAPI>-DELFLG = 1.
<EHSWAS_MNPOSAPI>-PARKFLG = 1.
<EHSWAS_MNPOSAPI>-CRDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHSWAS_MNPOSAPI-CRNAM, sy-vline,
  WA_EHSWAS_MNPOSAPI-UPDDAT, sy-vline,
  WA_EHSWAS_MNPOSAPI-UPDNAM, sy-vline,
  WA_EHSWAS_MNPOSAPI-SRSID, sy-vline,
  WA_EHSWAS_MNPOSAPI-OWNID, sy-vline,
  WA_EHSWAS_MNPOSAPI-RECNROOT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHSWAS_MNPOSAPI 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_EHSWAS_MNPOSAPI 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_EHSWAS_MNPOSAPI INTO WA_EHSWAS_MNPOSAPI.


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

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

*Conversion exit CUNIT, internal->external for field MNAMQIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EHSWAS_MNPOSAPI-MNAMQIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHSWAS_MNPOSAPI-MNAMQIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MNAMQEX
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EHSWAS_MNPOSAPI-MNAMQEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHSWAS_MNPOSAPI-MNAMQEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHSWAS_MNPOSAPI-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHSWAS_MNPOSAPI-AENNR.
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_EHSWAS_MNPOSAPI_STR, 
MANDT TYPE STRING,
RECN TYPE STRING,
DELFLG TYPE STRING,
PARKFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
SRSID TYPE STRING,
OWNID TYPE STRING,
RECNROOT TYPE STRING,
MNWAPOS TYPE STRING,
MNMATNR TYPE STRING,
MNAMIN TYPE STRING,
MNAMQIN TYPE STRING,
MNAMEX TYPE STRING,
MNAMQEX TYPE STRING,
MNPACNUM TYPE STRING,
MNPACCAT TYPE STRING,
MNPOSDGTXT TYPE STRING,
MNPOSDGFLG TYPE STRING,
ISHEAD TYPE STRING,
MNBAL TYPE STRING,
ACTN TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
AENNR TYPE STRING,
ERRORMODE TYPE STRING,
ERRORINFO TYPE STRING,
ERRORCLASS TYPE STRING,
ERRORPARAM TYPE STRING,
LOGLOCKMOD TYPE STRING,
EXTINFO TYPE STRING,
LINEMOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHSWAS_MNPOSAPI_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_EHSWAS_MNPOSAPI_STR-MANDT sy-vline 
WA_EHSWAS_MNPOSAPI_STR-RECN sy-vline 
WA_EHSWAS_MNPOSAPI_STR-DELFLG sy-vline 
WA_EHSWAS_MNPOSAPI_STR-PARKFLG sy-vline 
WA_EHSWAS_MNPOSAPI_STR-CRDAT sy-vline 
WA_EHSWAS_MNPOSAPI_STR-CRNAM sy-vline 
WA_EHSWAS_MNPOSAPI_STR-UPDDAT sy-vline 
WA_EHSWAS_MNPOSAPI_STR-UPDNAM sy-vline 
WA_EHSWAS_MNPOSAPI_STR-SRSID sy-vline 
WA_EHSWAS_MNPOSAPI_STR-OWNID sy-vline 
WA_EHSWAS_MNPOSAPI_STR-RECNROOT sy-vline 
WA_EHSWAS_MNPOSAPI_STR-MNWAPOS sy-vline 
WA_EHSWAS_MNPOSAPI_STR-MNMATNR sy-vline 
WA_EHSWAS_MNPOSAPI_STR-MNAMIN sy-vline 
WA_EHSWAS_MNPOSAPI_STR-MNAMQIN sy-vline 
WA_EHSWAS_MNPOSAPI_STR-MNAMEX sy-vline 
WA_EHSWAS_MNPOSAPI_STR-MNAMQEX sy-vline 
WA_EHSWAS_MNPOSAPI_STR-MNPACNUM sy-vline 
WA_EHSWAS_MNPOSAPI_STR-MNPACCAT sy-vline 
WA_EHSWAS_MNPOSAPI_STR-MNPOSDGTXT sy-vline 
WA_EHSWAS_MNPOSAPI_STR-MNPOSDGFLG sy-vline 
WA_EHSWAS_MNPOSAPI_STR-ISHEAD sy-vline 
WA_EHSWAS_MNPOSAPI_STR-MNBAL sy-vline 
WA_EHSWAS_MNPOSAPI_STR-ACTN sy-vline 
WA_EHSWAS_MNPOSAPI_STR-VALFR sy-vline 
WA_EHSWAS_MNPOSAPI_STR-VALTO sy-vline 
WA_EHSWAS_MNPOSAPI_STR-AENNR sy-vline 
WA_EHSWAS_MNPOSAPI_STR-ERRORMODE sy-vline 
WA_EHSWAS_MNPOSAPI_STR-ERRORINFO sy-vline 
WA_EHSWAS_MNPOSAPI_STR-ERRORCLASS sy-vline 
WA_EHSWAS_MNPOSAPI_STR-ERRORPARAM sy-vline 
WA_EHSWAS_MNPOSAPI_STR-LOGLOCKMOD sy-vline 
WA_EHSWAS_MNPOSAPI_STR-EXTINFO sy-vline 
WA_EHSWAS_MNPOSAPI_STR-LINEMOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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