ABAP Select data from SAP table INSNUR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INSNUR
*  INTO TABLE @DATA(IT_INSNUR2).
*--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_INSNUR INDEX 1 INTO DATA(WA_INSNUR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INSNUR>-NCC01 = 1.
<INSNUR>-NCT01 = 1.
<INSNUR>-NPR01 = 1.
<INSNUR>-NCN01 = 1.
<INSNUR>-NNF01 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INSNUR-NCC02, sy-vline,
  WA_INSNUR-NCT02, sy-vline,
  WA_INSNUR-NPR02, sy-vline,
  WA_INSNUR-NCN02, sy-vline,
  WA_INSNUR-NNF02, sy-vline,
  WA_INSNUR-NCC03, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INSNUR 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_INSNUR 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_INSNUR INTO WA_INSNUR.


*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_INSNUR_STR, 
NCC01 TYPE STRING,
NCT01 TYPE STRING,
NPR01 TYPE STRING,
NCN01 TYPE STRING,
NNF01 TYPE STRING,
NCC02 TYPE STRING,
NCT02 TYPE STRING,
NPR02 TYPE STRING,
NCN02 TYPE STRING,
NNF02 TYPE STRING,
NCC03 TYPE STRING,
NCT03 TYPE STRING,
NPR03 TYPE STRING,
NCN03 TYPE STRING,
NNF03 TYPE STRING,
NCC04 TYPE STRING,
NCT04 TYPE STRING,
NPR04 TYPE STRING,
NCN04 TYPE STRING,
NNF04 TYPE STRING,
NCC05 TYPE STRING,
NCT05 TYPE STRING,
NPR05 TYPE STRING,
NCN05 TYPE STRING,
NNF05 TYPE STRING,
NUF01 TYPE STRING,
NUF02 TYPE STRING,
NUF03 TYPE STRING,
NUF04 TYPE STRING,
NUF05 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INSNUR_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_INSNUR_STR-NCC01 sy-vline 
WA_INSNUR_STR-NCT01 sy-vline 
WA_INSNUR_STR-NPR01 sy-vline 
WA_INSNUR_STR-NCN01 sy-vline 
WA_INSNUR_STR-NNF01 sy-vline 
WA_INSNUR_STR-NCC02 sy-vline 
WA_INSNUR_STR-NCT02 sy-vline 
WA_INSNUR_STR-NPR02 sy-vline 
WA_INSNUR_STR-NCN02 sy-vline 
WA_INSNUR_STR-NNF02 sy-vline 
WA_INSNUR_STR-NCC03 sy-vline 
WA_INSNUR_STR-NCT03 sy-vline 
WA_INSNUR_STR-NPR03 sy-vline 
WA_INSNUR_STR-NCN03 sy-vline 
WA_INSNUR_STR-NNF03 sy-vline 
WA_INSNUR_STR-NCC04 sy-vline 
WA_INSNUR_STR-NCT04 sy-vline 
WA_INSNUR_STR-NPR04 sy-vline 
WA_INSNUR_STR-NCN04 sy-vline 
WA_INSNUR_STR-NNF04 sy-vline 
WA_INSNUR_STR-NCC05 sy-vline 
WA_INSNUR_STR-NCT05 sy-vline 
WA_INSNUR_STR-NPR05 sy-vline 
WA_INSNUR_STR-NCN05 sy-vline 
WA_INSNUR_STR-NNF05 sy-vline 
WA_INSNUR_STR-NUF01 sy-vline 
WA_INSNUR_STR-NUF02 sy-vline 
WA_INSNUR_STR-NUF03 sy-vline 
WA_INSNUR_STR-NUF04 sy-vline 
WA_INSNUR_STR-NUF05 sy-vline      INTO ld_text SEPARATED BY SPACE.

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