ABAP Select data from SAP table SINSU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SINSU
*  INTO TABLE @DATA(IT_SINSU2).
*--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_SINSU INDEX 1 INTO DATA(WA_SINSU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SINSU>-SEL = 1.
<SINSU>-CLASS = 1.
<SINSU>-CLDES = 1.
<SINSU>-SAPNAM = 1.
<SINSU>-USRNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SINSU-ADRNAM, sy-vline,
  WA_SINSU-SUBNAM, sy-vline,
  WA_SINSU-SUBDES, sy-vline,
  WA_SINSU-SBDAT, sy-vline,
  WA_SINSU-SBTIM, sy-vline,
  WA_SINSU-SEDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SINSU 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_SINSU 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_SINSU INTO WA_SINSU.


*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_SINSU_STR, 
SEL TYPE STRING,
CLASS TYPE STRING,
CLDES TYPE STRING,
SAPNAM TYPE STRING,
USRNAM TYPE STRING,
ADRNAM TYPE STRING,
SUBNAM TYPE STRING,
SUBDES TYPE STRING,
SBDAT TYPE STRING,
SBTIM TYPE STRING,
SEDAT TYPE STRING,
SETIM TYPE STRING,
SUBTYPE TYPE STRING,
PROTI TYPE STRING,
PROTO TYPE STRING,
PROTP TYPE STRING,
PROTG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SINSU_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_SINSU_STR-SEL sy-vline 
WA_SINSU_STR-CLASS sy-vline 
WA_SINSU_STR-CLDES sy-vline 
WA_SINSU_STR-SAPNAM sy-vline 
WA_SINSU_STR-USRNAM sy-vline 
WA_SINSU_STR-ADRNAM sy-vline 
WA_SINSU_STR-SUBNAM sy-vline 
WA_SINSU_STR-SUBDES sy-vline 
WA_SINSU_STR-SBDAT sy-vline 
WA_SINSU_STR-SBTIM sy-vline 
WA_SINSU_STR-SEDAT sy-vline 
WA_SINSU_STR-SETIM sy-vline 
WA_SINSU_STR-SUBTYPE sy-vline 
WA_SINSU_STR-PROTI sy-vline 
WA_SINSU_STR-PROTO sy-vline 
WA_SINSU_STR-PROTP sy-vline 
WA_SINSU_STR-PROTG sy-vline      INTO ld_text SEPARATED BY SPACE.

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