ABAP Select data from SAP table /GSINS/INSH_STR_ADD_STRUCTS 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_ADD_STRUCTS 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_ADD_STRUCTS. 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_ADD_STRUCTS 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_ADD_STRUCTS TYPE STANDARD TABLE OF /GSINS/INSH_STR_ADD_STRUCTS,
      WA_/GSINS/INSH_STR_ADD_STRUCTS TYPE /GSINS/INSH_STR_ADD_STRUCTS,
      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_ADD_STRUCTS> TYPE /GSINS/INSH_STR_ADD_STRUCTS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /GSINS/INSH_STR_ADD_STRUCTS
*  INTO TABLE @DATA(IT_/GSINS/INSH_STR_ADD_STRUCTS2).
*--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_ADD_STRUCTS INDEX 1 INTO DATA(WA_/GSINS/INSH_STR_ADD_STRUCTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</GSINS/INSH_STR_ADD_STRUCTS>-ADD1 = 1.
</GSINS/INSH_STR_ADD_STRUCTS>-ADD2 = 1.
</GSINS/INSH_STR_ADD_STRUCTS>-ADD3 = 1.
</GSINS/INSH_STR_ADD_STRUCTS>-ADD4 = 1.
</GSINS/INSH_STR_ADD_STRUCTS>-ADD5 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/GSINS/INSH_STR_ADD_STRUCTS-ADD6, sy-vline,
  WA_/GSINS/INSH_STR_ADD_STRUCTS-ADD7, sy-vline,
  WA_/GSINS/INSH_STR_ADD_STRUCTS-ADD8, sy-vline,
  WA_/GSINS/INSH_STR_ADD_STRUCTS-ADD9, sy-vline,
  WA_/GSINS/INSH_STR_ADD_STRUCTS-ADD10, sy-vline,
  WA_/GSINS/INSH_STR_ADD_STRUCTS-ADD11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/GSINS/INSH_STR_ADD_STRUCTS 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_ADD_STRUCTS 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_ADD_STRUCTS INTO WA_/GSINS/INSH_STR_ADD_STRUCTS.


*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_/GSINS/INSH_STR_ADD_STRUCTS_STR, 
ADD1 TYPE STRING,
ADD2 TYPE STRING,
ADD3 TYPE STRING,
ADD4 TYPE STRING,
ADD5 TYPE STRING,
ADD6 TYPE STRING,
ADD7 TYPE STRING,
ADD8 TYPE STRING,
ADD9 TYPE STRING,
ADD10 TYPE STRING,
ADD11 TYPE STRING,
ADD12 TYPE STRING,
ADD13 TYPE STRING,
ADD14 TYPE STRING,
ADD15 TYPE STRING,
ADD16 TYPE STRING,
ADD17 TYPE STRING,
ADD18 TYPE STRING,
ADD19 TYPE STRING,
ADD20 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/GSINS/INSH_STR_ADD_STRUCTS_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_ADD_STRUCTS_STR-ADD1 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD2 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD3 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD4 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD5 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD6 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD7 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD8 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD9 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD10 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD11 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD12 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD13 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD14 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD15 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD16 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD17 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD18 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD19 sy-vline 
WA_/GSINS/INSH_STR_ADD_STRUCTS_STR-ADD20 sy-vline      INTO ld_text SEPARATED BY SPACE.

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