ABAP Select data from SAP table T525E into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T525E 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 T525E. 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 T525E 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_T525E TYPE STANDARD TABLE OF T525E,
      WA_T525E TYPE T525E,
      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: <T525E> TYPE T525E.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T525E.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T525E
  INTO TABLE IT_T525E.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T525E
*  INTO TABLE @DATA(IT_T525E2).
*--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_T525E INDEX 1 INTO DATA(WA_T525E2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T525E ASSIGNING <T525E>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T525E>-MANDT = 1.
<T525E>-RNDRL = 1.
<T525E>-RNDDY = 1.
<T525E>-RNDMN = 1.
<T525E>-DFCUT = 1.

ENDLOOP.

LOOP AT IT_T525E INTO WA_T525E.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T525E-DFRND, sy-vline,
  WA_T525E-DFRAC, sy-vline,
  WA_T525E-DYCUT, sy-vline,
  WA_T525E-DYRND, sy-vline,
  WA_T525E-NODY2, sy-vline,
  WA_T525E-MNCUT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T525E 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_T525E 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_T525E INTO WA_T525E.


*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_T525E_STR, 
MANDT TYPE STRING,
RNDRL TYPE STRING,
RNDDY TYPE STRING,
RNDMN TYPE STRING,
DFCUT TYPE STRING,
DFRND TYPE STRING,
DFRAC TYPE STRING,
DYCUT TYPE STRING,
DYRND TYPE STRING,
NODY2 TYPE STRING,
MNCUT TYPE STRING,
MNRND TYPE STRING,
NOMN2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T525E_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_T525E_STR-MANDT sy-vline 
WA_T525E_STR-RNDRL sy-vline 
WA_T525E_STR-RNDDY sy-vline 
WA_T525E_STR-RNDMN sy-vline 
WA_T525E_STR-DFCUT sy-vline 
WA_T525E_STR-DFRND sy-vline 
WA_T525E_STR-DFRAC sy-vline 
WA_T525E_STR-DYCUT sy-vline 
WA_T525E_STR-DYRND sy-vline 
WA_T525E_STR-NODY2 sy-vline 
WA_T525E_STR-MNCUT sy-vline 
WA_T525E_STR-MNRND sy-vline 
WA_T525E_STR-NOMN2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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