ABAP Select data from SAP table ACDOC_SI_RE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACDOC_SI_RE
*  INTO TABLE @DATA(IT_ACDOC_SI_RE2).
*--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_ACDOC_SI_RE INDEX 1 INTO DATA(WA_ACDOC_SI_RE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACDOC_SI_RE>-SWENR = 1.
<ACDOC_SI_RE>-SGENR = 1.
<ACDOC_SI_RE>-SGRNR = 1.
<ACDOC_SI_RE>-SMENR = 1.
<ACDOC_SI_RE>-RECNNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACDOC_SI_RE-SNKSL, sy-vline,
  WA_ACDOC_SI_RE-SEMPSL, sy-vline,
  WA_ACDOC_SI_RE-DABRZ, sy-vline,
  WA_ACDOC_SI_RE-PSWENR, sy-vline,
  WA_ACDOC_SI_RE-PSGENR, sy-vline,
  WA_ACDOC_SI_RE-PSGRNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACDOC_SI_RE 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_ACDOC_SI_RE 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_ACDOC_SI_RE INTO WA_ACDOC_SI_RE.


*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 SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_ACDOC_SI_RE-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOC_SI_RE-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field SGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_ACDOC_SI_RE-SGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOC_SI_RE-SGENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGRNR, internal->external for field SGRNR
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_ACDOC_SI_RE-SGRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOC_SI_RE-SGRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field SMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_ACDOC_SI_RE-SMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOC_SI_RE-SMENR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit SWENR, internal->external for field PSWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_ACDOC_SI_RE-PSWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOC_SI_RE-PSWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field PSGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_ACDOC_SI_RE-PSGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOC_SI_RE-PSGENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGRNR, internal->external for field PSGRNR
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_ACDOC_SI_RE-PSGRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOC_SI_RE-PSGRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field PSMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_ACDOC_SI_RE-PSMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOC_SI_RE-PSMENR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field PSEMPSL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACDOC_SI_RE-PSEMPSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOC_SI_RE-PSEMPSL.
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_ACDOC_SI_RE_STR, 
SWENR TYPE STRING,
SGENR TYPE STRING,
SGRNR TYPE STRING,
SMENR TYPE STRING,
RECNNR TYPE STRING,
SNKSL TYPE STRING,
SEMPSL TYPE STRING,
DABRZ TYPE STRING,
PSWENR TYPE STRING,
PSGENR TYPE STRING,
PSGRNR TYPE STRING,
PSMENR TYPE STRING,
PRECNNR TYPE STRING,
PSNKSL TYPE STRING,
PSEMPSL TYPE STRING,
PDABRZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACDOC_SI_RE_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_ACDOC_SI_RE_STR-SWENR sy-vline 
WA_ACDOC_SI_RE_STR-SGENR sy-vline 
WA_ACDOC_SI_RE_STR-SGRNR sy-vline 
WA_ACDOC_SI_RE_STR-SMENR sy-vline 
WA_ACDOC_SI_RE_STR-RECNNR sy-vline 
WA_ACDOC_SI_RE_STR-SNKSL sy-vline 
WA_ACDOC_SI_RE_STR-SEMPSL sy-vline 
WA_ACDOC_SI_RE_STR-DABRZ sy-vline 
WA_ACDOC_SI_RE_STR-PSWENR sy-vline 
WA_ACDOC_SI_RE_STR-PSGENR sy-vline 
WA_ACDOC_SI_RE_STR-PSGRNR sy-vline 
WA_ACDOC_SI_RE_STR-PSMENR sy-vline 
WA_ACDOC_SI_RE_STR-PRECNNR sy-vline 
WA_ACDOC_SI_RE_STR-PSNKSL sy-vline 
WA_ACDOC_SI_RE_STR-PSEMPSL sy-vline 
WA_ACDOC_SI_RE_STR-PDABRZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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