ABAP Select data from SAP table HASH_DATA_FOR_PRODALLWDCOMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HASH_DATA_FOR_PRODALLWDCOMP
*  INTO TABLE @DATA(IT_HASH_DATA_FOR_PRODALLWDCOMP2).
*--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_HASH_DATA_FOR_PRODALLWDCOMP INDEX 1 INTO DATA(WA_HASH_DATA_FOR_PRODALLWDCOMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HASH_DATA_FOR_PRODALLWDCOMP>-PRODALLWDCOMPID = 1.
<HASH_DATA_FOR_PRODALLWDCOMP>-COMPONENTNODEDATA = 1.
<HASH_DATA_FOR_PRODALLWDCOMP>-VARIANCESCHEMEHEADER = 1.
<HASH_DATA_FOR_PRODALLWDCOMP>-VARIANCESCHEME = 1.
<HASH_DATA_FOR_PRODALLWDCOMP>-COMPONENTNODETEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HASH_DATA_FOR_PRODALLWDCOMP-COMPONENTNODELONGTEXTHEADER, sy-vline,
  WA_HASH_DATA_FOR_PRODALLWDCOMP-COMPONENTNODELONGTEXT, sy-vline,
  WA_HASH_DATA_FOR_PRODALLWDCOMP-COMPONENTNODEEXTENSION, sy-vline,
  WA_HASH_DATA_FOR_PRODALLWDCOMP-COMPONENTALTERNATIVEDATA, sy-vline,
  WA_HASH_DATA_FOR_PRODALLWDCOMP-COMPONENTALTERNATIVETEXT, sy-vline,
  WA_HASH_DATA_FOR_PRODALLWDCOMP-COMPONENTALTLONGTEXTHEADER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HASH_DATA_FOR_PRODALLWDCOMP 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_HASH_DATA_FOR_PRODALLWDCOMP 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_HASH_DATA_FOR_PRODALLWDCOMP INTO WA_HASH_DATA_FOR_PRODALLWDCOMP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_HASH_DATA_FOR_PRODALLWDCOMP_STR, 
PRODALLWDCOMPID TYPE STRING,
COMPONENTNODEDATA TYPE STRING,
VARIANCESCHEMEHEADER TYPE STRING,
VARIANCESCHEME TYPE STRING,
COMPONENTNODETEXT TYPE STRING,
COMPONENTNODELONGTEXTHEADER TYPE STRING,
COMPONENTNODELONGTEXT TYPE STRING,
COMPONENTNODEEXTENSION TYPE STRING,
COMPONENTALTERNATIVEDATA TYPE STRING,
COMPONENTALTERNATIVETEXT TYPE STRING,
COMPONENTALTLONGTEXTHEADER TYPE STRING,
COMPONENTALTLONGTEXT TYPE STRING,
COMPONENTRELATION TYPE STRING,
ACTIVITYRELATION TYPE STRING,
ACTIVITYRELATIONCONSTRAINT TYPE STRING,
COMPONENTVARIANTDATA TYPE STRING,
COMPONENTVARIANTSHORTTEXT TYPE STRING,
COMPONENTVARIANTTEXTHEADER TYPE STRING,
COMPONENTVARIANTTEXT TYPE STRING,
DEPENDENCYDATA TYPE STRING,
DEPENDENCYSOURCES TYPE STRING,
CONFIGURATIONINSTANCE TYPE STRING,
CONFIGURATIONVALUE TYPE STRING,
COMPONENTVARIANTCLASSDIFF TYPE STRING,
COMPONENTVARIANTEXTENSION TYPE STRING,
DOCUMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HASH_DATA_FOR_PRODALLWDCOMP_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_HASH_DATA_FOR_PRODALLWDCOMP_STR-PRODALLWDCOMPID sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTNODEDATA sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-VARIANCESCHEMEHEADER sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-VARIANCESCHEME sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTNODETEXT sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTNODELONGTEXTHEADER sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTNODELONGTEXT sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTNODEEXTENSION sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTALTERNATIVEDATA sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTALTERNATIVETEXT sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTALTLONGTEXTHEADER sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTALTLONGTEXT sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTRELATION sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-ACTIVITYRELATION sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-ACTIVITYRELATIONCONSTRAINT sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTVARIANTDATA sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTVARIANTSHORTTEXT sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTVARIANTTEXTHEADER sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTVARIANTTEXT sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-DEPENDENCYDATA sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-DEPENDENCYSOURCES sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-CONFIGURATIONINSTANCE sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-CONFIGURATIONVALUE sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTVARIANTCLASSDIFF sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-COMPONENTVARIANTEXTENSION sy-vline 
WA_HASH_DATA_FOR_PRODALLWDCOMP_STR-DOCUMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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