ABAP Select data from SAP table ATP_PAR_ATPTERM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ATP_PAR_ATPTERM
*  INTO TABLE @DATA(IT_ATP_PAR_ATPTERM2).
*--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_ATP_PAR_ATPTERM INDEX 1 INTO DATA(WA_ATP_PAR_ATPTERM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ATP_PAR_ATPTERM>-POSGUID = 1.
<ATP_PAR_ATPTERM>-XLINE = 1.
<ATP_PAR_ATPTERM>-TLINE = 1.
<ATP_PAR_ATPTERM>-MBDAT = 1.
<ATP_PAR_ATPTERM>-MBUHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ATP_PAR_ATPTERM-TDDAT, sy-vline,
  WA_ATP_PAR_ATPTERM-TDUHR, sy-vline,
  WA_ATP_PAR_ATPTERM-LDDAT, sy-vline,
  WA_ATP_PAR_ATPTERM-LDUHR, sy-vline,
  WA_ATP_PAR_ATPTERM-WADAT, sy-vline,
  WA_ATP_PAR_ATPTERM-WAUHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ATP_PAR_ATPTERM 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_ATP_PAR_ATPTERM 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_ATP_PAR_ATPTERM INTO WA_ATP_PAR_ATPTERM.


*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_ATP_PAR_ATPTERM_STR, 
POSGUID TYPE STRING,
XLINE TYPE STRING,
TLINE TYPE STRING,
MBDAT TYPE STRING,
MBUHR TYPE STRING,
TDDAT TYPE STRING,
TDUHR TYPE STRING,
LDDAT TYPE STRING,
LDUHR TYPE STRING,
WADAT TYPE STRING,
WAUHR TYPE STRING,
LFDAT TYPE STRING,
LFUHR TYPE STRING,
DATLO TYPE STRING,
TIMLO TYPE STRING,
AULWE TYPE STRING,
ELDAT TYPE STRING,
ELUHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ATP_PAR_ATPTERM_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_ATP_PAR_ATPTERM_STR-POSGUID sy-vline 
WA_ATP_PAR_ATPTERM_STR-XLINE sy-vline 
WA_ATP_PAR_ATPTERM_STR-TLINE sy-vline 
WA_ATP_PAR_ATPTERM_STR-MBDAT sy-vline 
WA_ATP_PAR_ATPTERM_STR-MBUHR sy-vline 
WA_ATP_PAR_ATPTERM_STR-TDDAT sy-vline 
WA_ATP_PAR_ATPTERM_STR-TDUHR sy-vline 
WA_ATP_PAR_ATPTERM_STR-LDDAT sy-vline 
WA_ATP_PAR_ATPTERM_STR-LDUHR sy-vline 
WA_ATP_PAR_ATPTERM_STR-WADAT sy-vline 
WA_ATP_PAR_ATPTERM_STR-WAUHR sy-vline 
WA_ATP_PAR_ATPTERM_STR-LFDAT sy-vline 
WA_ATP_PAR_ATPTERM_STR-LFUHR sy-vline 
WA_ATP_PAR_ATPTERM_STR-DATLO sy-vline 
WA_ATP_PAR_ATPTERM_STR-TIMLO sy-vline 
WA_ATP_PAR_ATPTERM_STR-AULWE sy-vline 
WA_ATP_PAR_ATPTERM_STR-ELDAT sy-vline 
WA_ATP_PAR_ATPTERM_STR-ELUHR sy-vline      INTO ld_text SEPARATED BY SPACE.

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