ABAP Select data from SAP table /ACCGO/T_SNPPRC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ACCGO/T_SNPPRC 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 /ACCGO/T_SNPPRC. 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 /ACCGO/T_SNPPRC 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_/ACCGO/T_SNPPRC TYPE STANDARD TABLE OF /ACCGO/T_SNPPRC,
      WA_/ACCGO/T_SNPPRC TYPE /ACCGO/T_SNPPRC,
      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: </ACCGO/T_SNPPRC> TYPE /ACCGO/T_SNPPRC.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ACCGO/T_SNPPRC
  INTO TABLE IT_/ACCGO/T_SNPPRC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/T_SNPPRC
*  INTO TABLE @DATA(IT_/ACCGO/T_SNPPRC2).
*--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_/ACCGO/T_SNPPRC INDEX 1 INTO DATA(WA_/ACCGO/T_SNPPRC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ACCGO/T_SNPPRC ASSIGNING </ACCGO/T_SNPPRC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/T_SNPPRC>-MANDT = 1.
</ACCGO/T_SNPPRC>-DOCUMENT_ID = 1.
</ACCGO/T_SNPPRC>-APPLICATION = 1.
</ACCGO/T_SNPPRC>-TIMESTAMP = 1.
</ACCGO/T_SNPPRC>-TPOSN = 1.

ENDLOOP.

LOOP AT IT_/ACCGO/T_SNPPRC INTO WA_/ACCGO/T_SNPPRC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/T_SNPPRC-COND_TYPE, sy-vline,
  WA_/ACCGO/T_SNPPRC-TERMNO, sy-vline,
  WA_/ACCGO/T_SNPPRC-TERMCOMMQUAN, sy-vline,
  WA_/ACCGO/T_SNPPRC-TERMCOMMUOM, sy-vline,
  WA_/ACCGO/T_SNPPRC-FIXTERMRATE_DF34, sy-vline,
  WA_/ACCGO/T_SNPPRC-FIXTERMCURR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/T_SNPPRC 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_/ACCGO/T_SNPPRC 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_/ACCGO/T_SNPPRC INTO WA_/ACCGO/T_SNPPRC.


*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 CUNIT, internal->external for field TERMCOMMUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/T_SNPPRC-TERMCOMMUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/T_SNPPRC-TERMCOMMUOM.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CONTRACT_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/T_SNPPRC-CONTRACT_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/T_SNPPRC-CONTRACT_CODE.
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_/ACCGO/T_SNPPRC_STR, 
MANDT TYPE STRING,
DOCUMENT_ID TYPE STRING,
APPLICATION TYPE STRING,
TIMESTAMP TYPE STRING,
TPOSN TYPE STRING,
COND_TYPE TYPE STRING,
TERMNO TYPE STRING,
TERMCOMMQUAN TYPE STRING,
TERMCOMMUOM TYPE STRING,
FIXTERMRATE_DF34 TYPE STRING,
FIXTERMCURR TYPE STRING,
FIXTERMPRUN TYPE STRING,
FIXTERMUOM TYPE STRING,
FIXEXCHRATE TYPE STRING,
ACCGO_PRC_FIX_STATUS TYPE STRING,
CONTRACT_CODE TYPE STRING,
KEYDATE TYPE STRING,
DCSID TYPE STRING,
ACCGO_TOTAL_PRICE_DOC_CURR TYPE STRING,
ACCGO_CUMULATIVE_BASIS TYPE STRING,
ACCGO_OVERFILL_INDICATOR TYPE STRING,
/ACCGO/OVERFILL_INDICATOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/T_SNPPRC_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_/ACCGO/T_SNPPRC_STR-MANDT sy-vline 
WA_/ACCGO/T_SNPPRC_STR-DOCUMENT_ID sy-vline 
WA_/ACCGO/T_SNPPRC_STR-APPLICATION sy-vline 
WA_/ACCGO/T_SNPPRC_STR-TIMESTAMP sy-vline 
WA_/ACCGO/T_SNPPRC_STR-TPOSN sy-vline 
WA_/ACCGO/T_SNPPRC_STR-COND_TYPE sy-vline 
WA_/ACCGO/T_SNPPRC_STR-TERMNO sy-vline 
WA_/ACCGO/T_SNPPRC_STR-TERMCOMMQUAN sy-vline 
WA_/ACCGO/T_SNPPRC_STR-TERMCOMMUOM sy-vline 
WA_/ACCGO/T_SNPPRC_STR-FIXTERMRATE_DF34 sy-vline 
WA_/ACCGO/T_SNPPRC_STR-FIXTERMCURR sy-vline 
WA_/ACCGO/T_SNPPRC_STR-FIXTERMPRUN sy-vline 
WA_/ACCGO/T_SNPPRC_STR-FIXTERMUOM sy-vline 
WA_/ACCGO/T_SNPPRC_STR-FIXEXCHRATE sy-vline 
WA_/ACCGO/T_SNPPRC_STR-ACCGO_PRC_FIX_STATUS sy-vline 
WA_/ACCGO/T_SNPPRC_STR-CONTRACT_CODE sy-vline 
WA_/ACCGO/T_SNPPRC_STR-KEYDATE sy-vline 
WA_/ACCGO/T_SNPPRC_STR-DCSID sy-vline 
WA_/ACCGO/T_SNPPRC_STR-ACCGO_TOTAL_PRICE_DOC_CURR sy-vline 
WA_/ACCGO/T_SNPPRC_STR-ACCGO_CUMULATIVE_BASIS sy-vline 
WA_/ACCGO/T_SNPPRC_STR-ACCGO_OVERFILL_INDICATOR sy-vline 
WA_/ACCGO/T_SNPPRC_STR-/ACCGO/OVERFILL_INDICATOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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