ABAP Select data from SAP table /GSINS/INSH_STR_SEL_PARAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /GSINS/INSH_STR_SEL_PARAM
*  INTO TABLE @DATA(IT_/GSINS/INSH_STR_SEL_PARAM2).
*--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_/GSINS/INSH_STR_SEL_PARAM INDEX 1 INTO DATA(WA_/GSINS/INSH_STR_SEL_PARAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</GSINS/INSH_STR_SEL_PARAM>-CLAIM = 1.
</GSINS/INSH_STR_SEL_PARAM>-SUBCLAIM = 1.
</GSINS/INSH_STR_SEL_PARAM>-PAYMENT = 1.
</GSINS/INSH_STR_SEL_PARAM>-PAYMENTITEM = 1.
</GSINS/INSH_STR_SEL_PARAM>-CURR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/GSINS/INSH_STR_SEL_PARAM-METHOD, sy-vline,
  WA_/GSINS/INSH_STR_SEL_PARAM-BENTYPE, sy-vline,
  WA_/GSINS/INSH_STR_SEL_PARAM-POSTDATE, sy-vline,
  WA_/GSINS/INSH_STR_SEL_PARAM-PAMPAID, sy-vline,
  WA_/GSINS/INSH_STR_SEL_PARAM-PERNR, sy-vline,
  WA_/GSINS/INSH_STR_SEL_PARAM-EXT_DEDUCTION_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/GSINS/INSH_STR_SEL_PARAM 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_/GSINS/INSH_STR_SEL_PARAM 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_/GSINS/INSH_STR_SEL_PARAM INTO WA_/GSINS/INSH_STR_SEL_PARAM.


*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 ALPHA, internal->external for field CLAIM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/GSINS/INSH_STR_SEL_PARAM-CLAIM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/GSINS/INSH_STR_SEL_PARAM-CLAIM.
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_/GSINS/INSH_STR_SEL_PARAM_STR, 
CLAIM TYPE STRING,
SUBCLAIM TYPE STRING,
PAYMENT TYPE STRING,
PAYMENTITEM TYPE STRING,
CURR TYPE STRING,
METHOD TYPE STRING,
BENTYPE TYPE STRING,
POSTDATE TYPE STRING,
PAMPAID TYPE STRING,
PERNR TYPE STRING,
EXT_DEDUCTION_ID TYPE STRING,
SEQNUM TYPE STRING,
COUNTRY TYPE STRING,
ITEMSUBCL TYPE STRING,
LEAVE_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/GSINS/INSH_STR_SEL_PARAM_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_/GSINS/INSH_STR_SEL_PARAM_STR-CLAIM sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-SUBCLAIM sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-PAYMENT sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-PAYMENTITEM sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-CURR sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-METHOD sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-BENTYPE sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-POSTDATE sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-PAMPAID sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-PERNR sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-EXT_DEDUCTION_ID sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-SEQNUM sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-COUNTRY sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-ITEMSUBCL sy-vline 
WA_/GSINS/INSH_STR_SEL_PARAM_STR-LEAVE_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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