ABAP Select data from SAP table P08P1_ABS_ENTS_DET into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P08P1_ABS_ENTS_DET 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 P08P1_ABS_ENTS_DET. 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 P08P1_ABS_ENTS_DET 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_P08P1_ABS_ENTS_DET TYPE STANDARD TABLE OF P08P1_ABS_ENTS_DET,
      WA_P08P1_ABS_ENTS_DET TYPE P08P1_ABS_ENTS_DET,
      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: <P08P1_ABS_ENTS_DET> TYPE P08P1_ABS_ENTS_DET.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P08P1_ABS_ENTS_DET.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P08P1_ABS_ENTS_DET
  INTO TABLE IT_P08P1_ABS_ENTS_DET.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P08P1_ABS_ENTS_DET
*  INTO TABLE @DATA(IT_P08P1_ABS_ENTS_DET2).
*--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_P08P1_ABS_ENTS_DET INDEX 1 INTO DATA(WA_P08P1_ABS_ENTS_DET2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P08P1_ABS_ENTS_DET ASSIGNING <P08P1_ABS_ENTS_DET>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P08P1_ABS_ENTS_DET>-PERNR = 1.
<P08P1_ABS_ENTS_DET>-CRMOA = 1.
<P08P1_ABS_ENTS_DET>-CRABT = 1.
<P08P1_ABS_ENTS_DET>-TEXT1 = 1.
<P08P1_ABS_ENTS_DET>-CREVC = 1.

ENDLOOP.

LOOP AT IT_P08P1_ABS_ENTS_DET INTO WA_P08P1_ABS_ENTS_DET.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P08P1_ABS_ENTS_DET-TEXT2, sy-vline,
  WA_P08P1_ABS_ENTS_DET-WTG, sy-vline,
  WA_P08P1_ABS_ENTS_DET-WTGL, sy-vline,
  WA_P08P1_ABS_ENTS_DET-LMT, sy-vline,
  WA_P08P1_ABS_ENTS_DET-LMTL, sy-vline,
  WA_P08P1_ABS_ENTS_DET-LMTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P08P1_ABS_ENTS_DET 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_P08P1_ABS_ENTS_DET 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_P08P1_ABS_ENTS_DET INTO WA_P08P1_ABS_ENTS_DET.


*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_P08P1_ABS_ENTS_DET_STR, 
PERNR TYPE STRING,
CRMOA TYPE STRING,
CRABT TYPE STRING,
TEXT1 TYPE STRING,
CREVC TYPE STRING,
TEXT2 TYPE STRING,
WTG TYPE STRING,
WTGL TYPE STRING,
LMT TYPE STRING,
LMTL TYPE STRING,
LMTR TYPE STRING,
LM2 TYPE STRING,
LM2L TYPE STRING,
LM2R TYPE STRING,
ENT TYPE STRING,
ENTP TYPE STRING,
ENTC TYPE STRING,
ENTL TYPE STRING,
ENTR TYPE STRING,
EXT TYPE STRING,
RED TYPE STRING,
TEXT3 TYPE STRING,
CRSEQ TYPE STRING,
FILL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P08P1_ABS_ENTS_DET_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_P08P1_ABS_ENTS_DET_STR-PERNR sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-CRMOA sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-CRABT sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-TEXT1 sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-CREVC sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-TEXT2 sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-WTG sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-WTGL sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-LMT sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-LMTL sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-LMTR sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-LM2 sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-LM2L sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-LM2R sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-ENT sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-ENTP sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-ENTC sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-ENTL sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-ENTR sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-EXT sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-RED sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-TEXT3 sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-CRSEQ sy-vline 
WA_P08P1_ABS_ENTS_DET_STR-FILL sy-vline      INTO ld_text SEPARATED BY SPACE.

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