ABAP Select data from SAP table DDPRTENQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DDPRTENQ
*  INTO TABLE @DATA(IT_DDPRTENQ2).
*--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_DDPRTENQ INDEX 1 INTO DATA(WA_DDPRTENQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DDPRTENQ>-ENQINFO = 1.
<DDPRTENQ>-BASTAB = 1.
<DDPRTENQ>-SPERRARG = 1.
<DDPRTENQ>-ENQTAB = 1.
<DDPRTENQ>-ENQFIELD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DDPRTENQ-ENQFLTYP, sy-vline,
  WA_DDPRTENQ-ENQFLLEN, sy-vline,
  WA_DDPRTENQ-ENQFLDE, sy-vline,
  WA_DDPRTENQ-ENQFLTXT, sy-vline,
  WA_DDPRTENQ-TABNAMLEN, sy-vline,
  WA_DDPRTENQ-FELDNAMLEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DDPRTENQ 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_DDPRTENQ 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_DDPRTENQ INTO WA_DDPRTENQ.


*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_DDPRTENQ_STR, 
ENQINFO TYPE STRING,
BASTAB TYPE STRING,
SPERRARG TYPE STRING,
ENQTAB TYPE STRING,
ENQFIELD TYPE STRING,
ENQFLTYP TYPE STRING,
ENQFLLEN TYPE STRING,
ENQFLDE TYPE STRING,
ENQFLTXT TYPE STRING,
TABNAMLEN TYPE STRING,
FELDNAMLEN TYPE STRING,
DTELNAMLE TYPE STRING,
FLDTEXTLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DDPRTENQ_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_DDPRTENQ_STR-ENQINFO sy-vline 
WA_DDPRTENQ_STR-BASTAB sy-vline 
WA_DDPRTENQ_STR-SPERRARG sy-vline 
WA_DDPRTENQ_STR-ENQTAB sy-vline 
WA_DDPRTENQ_STR-ENQFIELD sy-vline 
WA_DDPRTENQ_STR-ENQFLTYP sy-vline 
WA_DDPRTENQ_STR-ENQFLLEN sy-vline 
WA_DDPRTENQ_STR-ENQFLDE sy-vline 
WA_DDPRTENQ_STR-ENQFLTXT sy-vline 
WA_DDPRTENQ_STR-TABNAMLEN sy-vline 
WA_DDPRTENQ_STR-FELDNAMLEN sy-vline 
WA_DDPRTENQ_STR-DTELNAMLE sy-vline 
WA_DDPRTENQ_STR-FLDTEXTLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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