ABAP Select data from SAP table /1CN/APHSAPHU002 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /1CN/APHSAPHU002 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 /1CN/APHSAPHU002. 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 /1CN/APHSAPHU002 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_/1CN/APHSAPHU002 TYPE STANDARD TABLE OF /1CN/APHSAPHU002,
      WA_/1CN/APHSAPHU002 TYPE /1CN/APHSAPHU002,
      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: </1CN/APHSAPHU002> TYPE /1CN/APHSAPHU002.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/1CN/APHSAPHU002.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /1CN/APHSAPHU002
  INTO TABLE IT_/1CN/APHSAPHU002.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /1CN/APHSAPHU002
*  INTO TABLE @DATA(IT_/1CN/APHSAPHU0022).
*--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_/1CN/APHSAPHU002 INDEX 1 INTO DATA(WA_/1CN/APHSAPHU0022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/1CN/APHSAPHU002 ASSIGNING </1CN/APHSAPHU002>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</1CN/APHSAPHU002>-CLIENT = 1.
</1CN/APHSAPHU002>-PHU_LGNUM = 1.
</1CN/APHSAPHU002>-PHU_HUSTEP = 1.
</1CN/APHSAPHU002>-PHU_HUTYP = 1.
</1CN/APHSAPHU002>-PHU_PMAT = 1.

ENDLOOP.

LOOP AT IT_/1CN/APHSAPHU002 INTO WA_/1CN/APHSAPHU002.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/1CN/APHSAPHU002-PHU_WORKCENTER, sy-vline,
  WA_/1CN/APHSAPHU002-PHU_COPST, sy-vline,
  WA_/1CN/APHSAPHU002-KSCHL, sy-vline,
  WA_/1CN/APHSAPHU002-OBJECT_ID, sy-vline,
  WA_/1CN/APHSAPHU002-TIMESTAMP_TO, sy-vline,
  WA_/1CN/APHSAPHU002-RELEASE_STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/1CN/APHSAPHU002 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_/1CN/APHSAPHU002 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_/1CN/APHSAPHU002 INTO WA_/1CN/APHSAPHU002.


*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 MATN1, internal->external for field PHU_PMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/1CN/APHSAPHU002-PHU_PMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/1CN/APHSAPHU002-PHU_PMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPDEV, internal->external for field PH_LDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_/1CN/APHSAPHU002-PH_LDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/1CN/APHSAPHU002-PH_LDEST.
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_/1CN/APHSAPHU002_STR, 
CLIENT TYPE STRING,
PHU_LGNUM TYPE STRING,
PHU_HUSTEP TYPE STRING,
PHU_HUTYP TYPE STRING,
PHU_PMAT TYPE STRING,
PHU_WORKCENTER TYPE STRING,
PHU_COPST TYPE STRING,
KSCHL TYPE STRING,
OBJECT_ID TYPE STRING,
TIMESTAMP_TO TYPE STRING,
RELEASE_STATUS TYPE STRING,
KOPOS TYPE STRING,
CREATED_ON TYPE STRING,
VARNUMH TYPE STRING,
TIMESTAMP_FROM TYPE STRING,
KSCHL_SUPP TYPE STRING,
COND_GROUP_ID TYPE STRING,
MAINT_STATUS TYPE STRING,
CREATED_BY TYPE STRING,
SUPP_EXIST TYPE STRING,
SCALE_DIM TYPE STRING,
PH_FORMU TYPE STRING,
PH_LDEST TYPE STRING,
PH_KZPOOL TYPE STRING,
PH_SPOOL TYPE STRING,
PH_SEQ TYPE STRING,
PH_PPFACTDEF TYPE STRING,
PH_NOLBL TYPE STRING,
PH_NOPRI TYPE STRING,
PH_RFID TYPE STRING,
PH_COND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/1CN/APHSAPHU002_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_/1CN/APHSAPHU002_STR-CLIENT sy-vline 
WA_/1CN/APHSAPHU002_STR-PHU_LGNUM sy-vline 
WA_/1CN/APHSAPHU002_STR-PHU_HUSTEP sy-vline 
WA_/1CN/APHSAPHU002_STR-PHU_HUTYP sy-vline 
WA_/1CN/APHSAPHU002_STR-PHU_PMAT sy-vline 
WA_/1CN/APHSAPHU002_STR-PHU_WORKCENTER sy-vline 
WA_/1CN/APHSAPHU002_STR-PHU_COPST sy-vline 
WA_/1CN/APHSAPHU002_STR-KSCHL sy-vline 
WA_/1CN/APHSAPHU002_STR-OBJECT_ID sy-vline 
WA_/1CN/APHSAPHU002_STR-TIMESTAMP_TO sy-vline 
WA_/1CN/APHSAPHU002_STR-RELEASE_STATUS sy-vline 
WA_/1CN/APHSAPHU002_STR-KOPOS sy-vline 
WA_/1CN/APHSAPHU002_STR-CREATED_ON sy-vline 
WA_/1CN/APHSAPHU002_STR-VARNUMH sy-vline 
WA_/1CN/APHSAPHU002_STR-TIMESTAMP_FROM sy-vline 
WA_/1CN/APHSAPHU002_STR-KSCHL_SUPP sy-vline 
WA_/1CN/APHSAPHU002_STR-COND_GROUP_ID sy-vline 
WA_/1CN/APHSAPHU002_STR-MAINT_STATUS sy-vline 
WA_/1CN/APHSAPHU002_STR-CREATED_BY sy-vline 
WA_/1CN/APHSAPHU002_STR-SUPP_EXIST sy-vline 
WA_/1CN/APHSAPHU002_STR-SCALE_DIM sy-vline 
WA_/1CN/APHSAPHU002_STR-PH_FORMU sy-vline 
WA_/1CN/APHSAPHU002_STR-PH_LDEST sy-vline 
WA_/1CN/APHSAPHU002_STR-PH_KZPOOL sy-vline 
WA_/1CN/APHSAPHU002_STR-PH_SPOOL sy-vline 
WA_/1CN/APHSAPHU002_STR-PH_SEQ sy-vline 
WA_/1CN/APHSAPHU002_STR-PH_PPFACTDEF sy-vline 
WA_/1CN/APHSAPHU002_STR-PH_NOLBL sy-vline 
WA_/1CN/APHSAPHU002_STR-PH_NOPRI sy-vline 
WA_/1CN/APHSAPHU002_STR-PH_RFID sy-vline 
WA_/1CN/APHSAPHU002_STR-PH_COND sy-vline      INTO ld_text SEPARATED BY SPACE.

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