ABAP Select data from SAP table RE31E into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP RE31E 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 RE31E. 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 RE31E 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_RE31E TYPE STANDARD TABLE OF RE31E,
      WA_RE31E TYPE RE31E,
      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: <RE31E> TYPE RE31E.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RE31E.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RE31E
  INTO TABLE IT_RE31E.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RE31E
*  INTO TABLE @DATA(IT_RE31E2).
*--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_RE31E INDEX 1 INTO DATA(WA_RE31E2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RE31E ASSIGNING <RE31E>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<RE31E>-GPART = 1.
<RE31E>-VKONT = 1.
<RE31E>-VTREF = 1.
<RE31E>-BUKRS = 1.
<RE31E>-WAERS = 1.
ENDLOOP.

LOOP AT IT_RE31E INTO WA_RE31E.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RE31E-BUDAT, sy-vline,
WA_RE31E-AUGRD, sy-vline,
WA_RE31E-BLART, sy-vline,
WA_RE31E-FIKEY, sy-vline,
WA_RE31E-FAEDN, sy-vline,
WA_RE31E-HERKF, sy-vline.
ENDLOOP. *Add any further fields from structure WA_RE31E 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_RE31E 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_RE31E INTO WA_RE31E. *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 ALPHA, internal->external for field GPART CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_RE31E-GPART IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RE31E-GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_RE31E-VKONT IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RE31E-VKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTREF CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_RE31E-VTREF IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RE31E-VTREF.
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_RE31E_STR,
GPART TYPE STRING,
VKONT TYPE STRING,
VTREF TYPE STRING,
BUKRS TYPE STRING,
WAERS TYPE STRING,
BUDAT TYPE STRING,
AUGRD TYPE STRING,
BLART TYPE STRING,
FIKEY TYPE STRING,
FAEDN TYPE STRING,
HERKF TYPE STRING,
XAGVO TYPE STRING,
DIFFB TYPE STRING,
APPLK TYPE STRING,END OF T_EKKO_STR. DATA: WA_RE31E_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_RE31E_STR-GPART sy-vline
WA_RE31E_STR-VKONT sy-vline
WA_RE31E_STR-VTREF sy-vline
WA_RE31E_STR-BUKRS sy-vline
WA_RE31E_STR-WAERS sy-vline
WA_RE31E_STR-BUDAT sy-vline
WA_RE31E_STR-AUGRD sy-vline
WA_RE31E_STR-BLART sy-vline
WA_RE31E_STR-FIKEY sy-vline
WA_RE31E_STR-FAEDN sy-vline
WA_RE31E_STR-HERKF sy-vline
WA_RE31E_STR-XAGVO sy-vline
WA_RE31E_STR-DIFFB sy-vline
WA_RE31E_STR-APPLK sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.