SAP S300 ABAP Select data from SAP table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP S300 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 S300. 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 S300 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_S300 TYPE STANDARD TABLE OF S300,
      WA_S300 TYPE S300,
      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: <S300> TYPE S300.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_S300.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM S300
  INTO TABLE IT_S300.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM S300
*  INTO TABLE @DATA(IT_S3002).
*--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_S300 INDEX 1 INTO DATA(WA_S3002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_S300 ASSIGNING <S300>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<S300>-MANDT = 1.
<S300>-SSOUR = 1.
<S300>-VRSIO = 1.
<S300>-SPMON = 1.
<S300>-SPTAG = 1.

ENDLOOP.

LOOP AT IT_S300 INTO WA_S300.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_S300-SPWOC, sy-vline,
  WA_S300-SPBUP, sy-vline,
  WA_S300-WI_ID, sy-vline,
  WA_S300-WI_RH_TASK, sy-vline,
  WA_S300-WI_AAGENT, sy-vline,
  WA_S300-WI_ORGUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_S300 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_S300 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_S300 INTO WA_S300.


*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 PERI, internal->external for field SPMON
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_S300-SPMON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S300-SPMON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPWOC
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_S300-SPWOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S300-SPWOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPBUP
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_S300-SPBUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S300-SPBUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MCWF_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_S300-MCWF_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S300-MCWF_UNIT.
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_S300_STR, 
MANDT TYPE STRING,
SSOUR TYPE STRING,
VRSIO TYPE STRING,
SPMON TYPE STRING,
SPTAG TYPE STRING,
SPWOC TYPE STRING,
SPBUP TYPE STRING,
WI_ID TYPE STRING,
WI_RH_TASK TYPE STRING,
WI_AAGENT TYPE STRING,
WI_ORGUNIT TYPE STRING,
PERIV TYPE STRING,
VWDAT TYPE STRING,
MCWF_UNIT TYPE STRING,
WI_COUNT TYPE STRING,
TAR_TOTAL TYPE STRING,
NET_TOTAL TYPE STRING,
TIME_TOTAL TYPE STRING,
TAR_SQUARE TYPE STRING,
NET_SQUARE TYPE STRING,
TAR_MEAN TYPE STRING,
NET_MEAN TYPE STRING,
TIME_MEAN TYPE STRING,
TAR_SIGMA TYPE STRING,
NET_SIGMA TYPE STRING,
TIME_SIGMA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_S300_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_S300_STR-MANDT sy-vline 
WA_S300_STR-SSOUR sy-vline 
WA_S300_STR-VRSIO sy-vline 
WA_S300_STR-SPMON sy-vline 
WA_S300_STR-SPTAG sy-vline 
WA_S300_STR-SPWOC sy-vline 
WA_S300_STR-SPBUP sy-vline 
WA_S300_STR-WI_ID sy-vline 
WA_S300_STR-WI_RH_TASK sy-vline 
WA_S300_STR-WI_AAGENT sy-vline 
WA_S300_STR-WI_ORGUNIT sy-vline 
WA_S300_STR-PERIV sy-vline 
WA_S300_STR-VWDAT sy-vline 
WA_S300_STR-MCWF_UNIT sy-vline 
WA_S300_STR-WI_COUNT sy-vline 
WA_S300_STR-TAR_TOTAL sy-vline 
WA_S300_STR-NET_TOTAL sy-vline 
WA_S300_STR-TIME_TOTAL sy-vline 
WA_S300_STR-TAR_SQUARE sy-vline 
WA_S300_STR-NET_SQUARE sy-vline 
WA_S300_STR-TAR_MEAN sy-vline 
WA_S300_STR-NET_MEAN sy-vline 
WA_S300_STR-TIME_MEAN sy-vline 
WA_S300_STR-TAR_SIGMA sy-vline 
WA_S300_STR-NET_SIGMA sy-vline 
WA_S300_STR-TIME_SIGMA sy-vline      INTO ld_text SEPARATED BY SPACE.

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

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