ABAP Select data from SAP table P18_TERUP_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P18_TERUP_S 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 P18_TERUP_S. 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 P18_TERUP_S 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_P18_TERUP_S TYPE STANDARD TABLE OF P18_TERUP_S,
      WA_P18_TERUP_S TYPE P18_TERUP_S,
      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: <P18_TERUP_S> TYPE P18_TERUP_S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P18_TERUP_S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P18_TERUP_S
  INTO TABLE IT_P18_TERUP_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P18_TERUP_S
*  INTO TABLE @DATA(IT_P18_TERUP_S2).
*--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_P18_TERUP_S INDEX 1 INTO DATA(WA_P18_TERUP_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P18_TERUP_S ASSIGNING <P18_TERUP_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P18_TERUP_S>-ERNAM = 1.
<P18_TERUP_S>-ERICO = 1.
<P18_TERUP_S>-ERADR = 1.
<P18_TERUP_S>-EENAM = 1.
<P18_TERUP_S>-GBDAT = 1.

ENDLOOP.

LOOP AT IT_P18_TERUP_S INTO WA_P18_TERUP_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P18_TERUP_S-EEADR, sy-vline,
  WA_P18_TERUP_S-CONTR, sy-vline,
  WA_P18_TERUP_S-EMBEG, sy-vline,
  WA_P18_TERUP_S-EMEND, sy-vline,
  WA_P18_TERUP_S-INSPE, sy-vline,
  WA_P18_TERUP_S-SEVER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P18_TERUP_S 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_P18_TERUP_S 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_P18_TERUP_S INTO WA_P18_TERUP_S.


*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 PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P18_TERUP_S-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P18_TERUP_S-GBDAT.
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_P18_TERUP_S_STR, 
ERNAM TYPE STRING,
ERICO TYPE STRING,
ERADR TYPE STRING,
EENAM TYPE STRING,
GBDAT TYPE STRING,
EEADR TYPE STRING,
CONTR TYPE STRING,
EMBEG TYPE STRING,
EMEND TYPE STRING,
INSPE TYPE STRING,
SEVER TYPE STRING,
SEVER_3_11 TYPE STRING,
SEVER_12_X TYPE STRING,
AVAMT TYPE STRING,
AVWRD TYPE STRING,
RSNYN TYPE STRING,
RSNTY TYPE STRING,
RSN01 TYPE STRING,
RSN02 TYPE STRING,
USRNM TYPE STRING,
USRTL TYPE STRING,
USRDT TYPE STRING,
WAERS TYPE STRING,
RPPAY TYPE STRING,
SEV01 TYPE STRING,
SEV02 TYPE STRING,
RSNLG TYPE STRING,
RSNSP TYPE STRING,
WAYSP TYPE STRING,
STAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P18_TERUP_S_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_P18_TERUP_S_STR-ERNAM sy-vline 
WA_P18_TERUP_S_STR-ERICO sy-vline 
WA_P18_TERUP_S_STR-ERADR sy-vline 
WA_P18_TERUP_S_STR-EENAM sy-vline 
WA_P18_TERUP_S_STR-GBDAT sy-vline 
WA_P18_TERUP_S_STR-EEADR sy-vline 
WA_P18_TERUP_S_STR-CONTR sy-vline 
WA_P18_TERUP_S_STR-EMBEG sy-vline 
WA_P18_TERUP_S_STR-EMEND sy-vline 
WA_P18_TERUP_S_STR-INSPE sy-vline 
WA_P18_TERUP_S_STR-SEVER sy-vline 
WA_P18_TERUP_S_STR-SEVER_3_11 sy-vline 
WA_P18_TERUP_S_STR-SEVER_12_X sy-vline 
WA_P18_TERUP_S_STR-AVAMT sy-vline 
WA_P18_TERUP_S_STR-AVWRD sy-vline 
WA_P18_TERUP_S_STR-RSNYN sy-vline 
WA_P18_TERUP_S_STR-RSNTY sy-vline 
WA_P18_TERUP_S_STR-RSN01 sy-vline 
WA_P18_TERUP_S_STR-RSN02 sy-vline 
WA_P18_TERUP_S_STR-USRNM sy-vline 
WA_P18_TERUP_S_STR-USRTL sy-vline 
WA_P18_TERUP_S_STR-USRDT sy-vline 
WA_P18_TERUP_S_STR-WAERS sy-vline 
WA_P18_TERUP_S_STR-RPPAY sy-vline 
WA_P18_TERUP_S_STR-SEV01 sy-vline 
WA_P18_TERUP_S_STR-SEV02 sy-vline 
WA_P18_TERUP_S_STR-RSNLG sy-vline 
WA_P18_TERUP_S_STR-RSNSP sy-vline 
WA_P18_TERUP_S_STR-WAYSP sy-vline 
WA_P18_TERUP_S_STR-STAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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