ABAP Select data from SAP table T7ID13 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7ID13 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 T7ID13. 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 T7ID13 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_T7ID13 TYPE STANDARD TABLE OF T7ID13,
      WA_T7ID13 TYPE T7ID13,
      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: <T7ID13> TYPE T7ID13.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7ID13.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7ID13
  INTO TABLE IT_T7ID13.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7ID13
*  INTO TABLE @DATA(IT_T7ID132).
*--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_T7ID13 INDEX 1 INTO DATA(WA_T7ID132).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7ID13 ASSIGNING <T7ID13>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7ID13>-MANDT = 1.
<T7ID13>-INSTY = 1.
<T7ID13>-CLEVL = 1.
<T7ID13>-ENDDA = 1.
<T7ID13>-BEGDA = 1.

ENDLOOP.

LOOP AT IT_T7ID13 INTO WA_T7ID13.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7ID13-PCTER, sy-vline,
  WA_T7ID13-PCTEE, sy-vline,
  WA_T7ID13-PTERI, sy-vline,
  WA_T7ID13-PTEEI, sy-vline,
  WA_T7ID13-WAEHI, sy-vline,
  WA_T7ID13-AMTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7ID13 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_T7ID13 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_T7ID13 INTO WA_T7ID13.


*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_T7ID13_STR, 
MANDT TYPE STRING,
INSTY TYPE STRING,
CLEVL TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
PCTER TYPE STRING,
PCTEE TYPE STRING,
PTERI TYPE STRING,
PTEEI TYPE STRING,
WAEHI TYPE STRING,
AMTER TYPE STRING,
ATERI TYPE STRING,
AMTEE TYPE STRING,
ATEEI TYPE STRING,
RULER TYPE STRING,
RULEE TYPE STRING,
EELUP TYPE STRING,
EELLO TYPE STRING,
ERLUP TYPE STRING,
ERLLO TYPE STRING,
WTYPE TYPE STRING,
ERWTP TYPE STRING,
EEWTP TYPE STRING,
EELLI TYPE STRING,
EEULI TYPE STRING,
ERLLI TYPE STRING,
ERULI TYPE STRING,
RLEEI TYPE STRING,
RLERI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7ID13_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_T7ID13_STR-MANDT sy-vline 
WA_T7ID13_STR-INSTY sy-vline 
WA_T7ID13_STR-CLEVL sy-vline 
WA_T7ID13_STR-ENDDA sy-vline 
WA_T7ID13_STR-BEGDA sy-vline 
WA_T7ID13_STR-PCTER sy-vline 
WA_T7ID13_STR-PCTEE sy-vline 
WA_T7ID13_STR-PTERI sy-vline 
WA_T7ID13_STR-PTEEI sy-vline 
WA_T7ID13_STR-WAEHI sy-vline 
WA_T7ID13_STR-AMTER sy-vline 
WA_T7ID13_STR-ATERI sy-vline 
WA_T7ID13_STR-AMTEE sy-vline 
WA_T7ID13_STR-ATEEI sy-vline 
WA_T7ID13_STR-RULER sy-vline 
WA_T7ID13_STR-RULEE sy-vline 
WA_T7ID13_STR-EELUP sy-vline 
WA_T7ID13_STR-EELLO sy-vline 
WA_T7ID13_STR-ERLUP sy-vline 
WA_T7ID13_STR-ERLLO sy-vline 
WA_T7ID13_STR-WTYPE sy-vline 
WA_T7ID13_STR-ERWTP sy-vline 
WA_T7ID13_STR-EEWTP sy-vline 
WA_T7ID13_STR-EELLI sy-vline 
WA_T7ID13_STR-EEULI sy-vline 
WA_T7ID13_STR-ERLLI sy-vline 
WA_T7ID13_STR-ERULI sy-vline 
WA_T7ID13_STR-RLEEI sy-vline 
WA_T7ID13_STR-RLERI sy-vline      INTO ld_text SEPARATED BY SPACE.

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