ABAP Select data from SAP table AVICNSCSRP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AVICNSCSRP
*  INTO TABLE @DATA(IT_AVICNSCSRP2).
*--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_AVICNSCSRP INDEX 1 INTO DATA(WA_AVICNSCSRP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AVICNSCSRP>-MANDT = 1.
<AVICNSCSRP>-INTRENO = 1.
<AVICNSCSRP>-RECNSCSRHNR = 1.
<AVICNSCSRP>-RECNSCSRPNR = 1.
<AVICNSCSRP>-SNKSL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AVICNSCSRP-RECNAMOUNT, sy-vline,
  WA_AVICNSCSRP-RECNTOTAMOUNT, sy-vline,
  WA_AVICNSCSRP-RECNSCSRHTAX, sy-vline,
  WA_AVICNSCSRP-RECNVZNEU, sy-vline,
  WA_AVICNSCSRP-RECNDVZNEU, sy-vline,
  WA_AVICNSCSRP-RECNEXTMET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AVICNSCSRP 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_AVICNSCSRP 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_AVICNSCSRP INTO WA_AVICNSCSRP.


*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 SNKSL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AVICNSCSRP-SNKSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVICNSCSRP-SNKSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field XEINHEIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AVICNSCSRP-XEINHEIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVICNSCSRP-XEINHEIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GESMSEHI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AVICNSCSRP-GESMSEHI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVICNSCSRP-GESMSEHI.
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_AVICNSCSRP_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
RECNSCSRHNR TYPE STRING,
RECNSCSRPNR TYPE STRING,
SNKSL TYPE STRING,
RECNAMOUNT TYPE STRING,
RECNTOTAMOUNT TYPE STRING,
RECNSCSRHTAX TYPE STRING,
RECNVZNEU TYPE STRING,
RECNDVZNEU TYPE STRING,
RECNEXTMET TYPE STRING,
XEINHEIT TYPE STRING,
RECNMETREAD TYPE STRING,
RECNRPINFO TYPE STRING,
OBJNR TYPE STRING,
RECNMWSKZ TYPE STRING,
RECNDPERBEG TYPE STRING,
RECNDPEREND TYPE STRING,
GESBABRE TYPE STRING,
GESMSEHI TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AVICNSCSRP_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_AVICNSCSRP_STR-MANDT sy-vline 
WA_AVICNSCSRP_STR-INTRENO sy-vline 
WA_AVICNSCSRP_STR-RECNSCSRHNR sy-vline 
WA_AVICNSCSRP_STR-RECNSCSRPNR sy-vline 
WA_AVICNSCSRP_STR-SNKSL sy-vline 
WA_AVICNSCSRP_STR-RECNAMOUNT sy-vline 
WA_AVICNSCSRP_STR-RECNTOTAMOUNT sy-vline 
WA_AVICNSCSRP_STR-RECNSCSRHTAX sy-vline 
WA_AVICNSCSRP_STR-RECNVZNEU sy-vline 
WA_AVICNSCSRP_STR-RECNDVZNEU sy-vline 
WA_AVICNSCSRP_STR-RECNEXTMET sy-vline 
WA_AVICNSCSRP_STR-XEINHEIT sy-vline 
WA_AVICNSCSRP_STR-RECNMETREAD sy-vline 
WA_AVICNSCSRP_STR-RECNRPINFO sy-vline 
WA_AVICNSCSRP_STR-OBJNR sy-vline 
WA_AVICNSCSRP_STR-RECNMWSKZ sy-vline 
WA_AVICNSCSRP_STR-RECNDPERBEG sy-vline 
WA_AVICNSCSRP_STR-RECNDPEREND sy-vline 
WA_AVICNSCSRP_STR-GESBABRE sy-vline 
WA_AVICNSCSRP_STR-GESMSEHI sy-vline 
WA_AVICNSCSRP_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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