ABAP Select data from SAP table SIN2S01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SIN2S01 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 SIN2S01. 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 SIN2S01 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_SIN2S01 TYPE STANDARD TABLE OF SIN2S01,
      WA_SIN2S01 TYPE SIN2S01,
      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: <SIN2S01> TYPE SIN2S01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SIN2S01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SIN2S01
  INTO TABLE IT_SIN2S01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SIN2S01
*  INTO TABLE @DATA(IT_SIN2S012).
*--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_SIN2S01 INDEX 1 INTO DATA(WA_SIN2S012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SIN2S01 ASSIGNING <SIN2S01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SIN2S01>-MARK = 1.
<SIN2S01>-CONFDESC = 1.
<SIN2S01>-PBCONF = 1.
<SIN2S01>-CONFTYPE = 1.
<SIN2S01>-CBOX1 = 1.

ENDLOOP.

LOOP AT IT_SIN2S01 INTO WA_SIN2S01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SIN2S01-CONFTYP1, sy-vline,
  WA_SIN2S01-CONFTXT1, sy-vline,
  WA_SIN2S01-CBOX2, sy-vline,
  WA_SIN2S01-CONFTYP2, sy-vline,
  WA_SIN2S01-CONFTXT2, sy-vline,
  WA_SIN2S01-COLDES1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SIN2S01 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_SIN2S01 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_SIN2S01 INTO WA_SIN2S01.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_SIN2S01_STR, 
MARK TYPE STRING,
CONFDESC TYPE STRING,
PBCONF TYPE STRING,
CONFTYPE TYPE STRING,
CBOX1 TYPE STRING,
CONFTYP1 TYPE STRING,
CONFTXT1 TYPE STRING,
CBOX2 TYPE STRING,
CONFTYP2 TYPE STRING,
CONFTXT2 TYPE STRING,
COLDES1 TYPE STRING,
LENG1 TYPE STRING,
FILTCONT TYPE STRING,
MARK1 TYPE STRING,
MARK2 TYPE STRING,
COLDES2 TYPE STRING,
COLTYP1 TYPE STRING,
COLTYP2 TYPE STRING,
COLSORTU TYPE STRING,
COLSORTD TYPE STRING,
MOAB TYPE STRING,
MOBA TYPE STRING,
MOCU TYPE STRING,
MOCD TYPE STRING,
C1MA TYPE STRING,
C1DA TYPE STRING,
C2MA TYPE STRING,
C2DA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SIN2S01_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_SIN2S01_STR-MARK sy-vline 
WA_SIN2S01_STR-CONFDESC sy-vline 
WA_SIN2S01_STR-PBCONF sy-vline 
WA_SIN2S01_STR-CONFTYPE sy-vline 
WA_SIN2S01_STR-CBOX1 sy-vline 
WA_SIN2S01_STR-CONFTYP1 sy-vline 
WA_SIN2S01_STR-CONFTXT1 sy-vline 
WA_SIN2S01_STR-CBOX2 sy-vline 
WA_SIN2S01_STR-CONFTYP2 sy-vline 
WA_SIN2S01_STR-CONFTXT2 sy-vline 
WA_SIN2S01_STR-COLDES1 sy-vline 
WA_SIN2S01_STR-LENG1 sy-vline 
WA_SIN2S01_STR-FILTCONT sy-vline 
WA_SIN2S01_STR-MARK1 sy-vline 
WA_SIN2S01_STR-MARK2 sy-vline 
WA_SIN2S01_STR-COLDES2 sy-vline 
WA_SIN2S01_STR-COLTYP1 sy-vline 
WA_SIN2S01_STR-COLTYP2 sy-vline 
WA_SIN2S01_STR-COLSORTU sy-vline 
WA_SIN2S01_STR-COLSORTD sy-vline 
WA_SIN2S01_STR-MOAB sy-vline 
WA_SIN2S01_STR-MOBA sy-vline 
WA_SIN2S01_STR-MOCU sy-vline 
WA_SIN2S01_STR-MOCD sy-vline 
WA_SIN2S01_STR-C1MA sy-vline 
WA_SIN2S01_STR-C1DA sy-vline 
WA_SIN2S01_STR-C2MA sy-vline 
WA_SIN2S01_STR-C2DA sy-vline      INTO ld_text SEPARATED BY SPACE.

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