ABAP Select data from SAP table SNIWEBI into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SNIWEBI 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 SNIWEBI. 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 SNIWEBI 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_SNIWEBI TYPE STANDARD TABLE OF SNIWEBI,
      WA_SNIWEBI TYPE SNIWEBI,
      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: <SNIWEBI> TYPE SNIWEBI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SNIWEBI
*  INTO TABLE @DATA(IT_SNIWEBI2).
*--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_SNIWEBI INDEX 1 INTO DATA(WA_SNIWEBI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SNIWEBI>-BUKRS = 1.
<SNIWEBI>-BIDAT = 1.
<SNIWEBI>-MATNR = 1.
<SNIWEBI>-BWKEY = 1.
<SNIWEBI>-BWTAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SNIWEBI-NWPRS, sy-vline,
  WA_SNIWEBI-MTPRS, sy-vline,
  WA_SNIWEBI-PEINH, sy-vline,
  WA_SNIWEBI-SALK3, sy-vline,
  WA_SNIWEBI-LBKUM, sy-vline,
  WA_SNIWEBI-MEINS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SNIWEBI 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_SNIWEBI 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_SNIWEBI INTO WA_SNIWEBI.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_SNIWEBI-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SNIWEBI-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_SNIWEBI-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SNIWEBI-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SNIWEBI-KONTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SNIWEBI-KONTO.
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_SNIWEBI_STR, 
BUKRS TYPE STRING,
BIDAT TYPE STRING,
MATNR TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
NWPRS TYPE STRING,
MTPRS TYPE STRING,
PEINH TYPE STRING,
SALK3 TYPE STRING,
LBKUM TYPE STRING,
MEINS TYPE STRING,
VPRSV TYPE STRING,
MLMAA TYPE STRING,
MLAST TYPE STRING,
KALN1 TYPE STRING,
MLPEI TYPE STRING,
NOSTK TYPE STRING,
NUMERATOR TYPE STRING,
DENOMINATOR TYPE STRING,
BWPEI TYPE STRING,
BWTTL TYPE STRING,
LBKUM_INV TYPE STRING,
SALK3_INV TYPE STRING,
MTART TYPE STRING,
KONTO TYPE STRING,
INVENTORY_PRICE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SNIWEBI_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_SNIWEBI_STR-BUKRS sy-vline 
WA_SNIWEBI_STR-BIDAT sy-vline 
WA_SNIWEBI_STR-MATNR sy-vline 
WA_SNIWEBI_STR-BWKEY sy-vline 
WA_SNIWEBI_STR-BWTAR sy-vline 
WA_SNIWEBI_STR-NWPRS sy-vline 
WA_SNIWEBI_STR-MTPRS sy-vline 
WA_SNIWEBI_STR-PEINH sy-vline 
WA_SNIWEBI_STR-SALK3 sy-vline 
WA_SNIWEBI_STR-LBKUM sy-vline 
WA_SNIWEBI_STR-MEINS sy-vline 
WA_SNIWEBI_STR-VPRSV sy-vline 
WA_SNIWEBI_STR-MLMAA sy-vline 
WA_SNIWEBI_STR-MLAST sy-vline 
WA_SNIWEBI_STR-KALN1 sy-vline 
WA_SNIWEBI_STR-MLPEI sy-vline 
WA_SNIWEBI_STR-NOSTK sy-vline 
WA_SNIWEBI_STR-NUMERATOR sy-vline 
WA_SNIWEBI_STR-DENOMINATOR sy-vline 
WA_SNIWEBI_STR-BWPEI sy-vline 
WA_SNIWEBI_STR-BWTTL sy-vline 
WA_SNIWEBI_STR-LBKUM_INV sy-vline 
WA_SNIWEBI_STR-SALK3_INV sy-vline 
WA_SNIWEBI_STR-MTART sy-vline 
WA_SNIWEBI_STR-KONTO sy-vline 
WA_SNIWEBI_STR-INVENTORY_PRICE sy-vline      INTO ld_text SEPARATED BY SPACE.

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