ABAP Select data from SAP table ISSR_MV_DE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISSR_MV_DE
*  INTO TABLE @DATA(IT_ISSR_MV_DE2).
*--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_ISSR_MV_DE INDEX 1 INTO DATA(WA_ISSR_MV_DE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISSR_MV_DE>-RACCT = 1.
<ISSR_MV_DE>-RSPARTE = 1.
<ISSR_MV_DE>-RSTOCKBAV = 1.
<ISSR_MV_DE>-RSTOCKFA = 1.
<ISSR_MV_DE>-RDV = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISSR_MV_DE-RDVUA, sy-vline,
  WA_ISSR_MV_DE-RRANTYP, sy-vline,
  WA_ISSR_MV_DE-RASSET_NR, sy-vline,
  WA_ISSR_MV_DE-RPARTNER, sy-vline,
  WA_ISSR_MV_DE-RPARTNER_QUOTE, sy-vline,
  WA_ISSR_MV_DE-RSEC_ACCOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISSR_MV_DE 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_ISSR_MV_DE 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_ISSR_MV_DE INTO WA_ISSR_MV_DE.


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

*Conversion exit ALPHA, internal->external for field RASSET_NR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISSR_MV_DE-RASSET_NR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSR_MV_DE-RASSET_NR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISSR_MV_DE-RPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSR_MV_DE-RPARTNER.
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_ISSR_MV_DE_STR, 
RACCT TYPE STRING,
RSPARTE TYPE STRING,
RSTOCKBAV TYPE STRING,
RSTOCKFA TYPE STRING,
RDV TYPE STRING,
RDVUA TYPE STRING,
RRANTYP TYPE STRING,
RASSET_NR TYPE STRING,
RPARTNER TYPE STRING,
RPARTNER_QUOTE TYPE STRING,
RSEC_ACCOUNT TYPE STRING,
PRODUCT_CAT TYPE STRING,
RPRODUCT_TYPE TYPE STRING,
RFLOWTYPE TYPE STRING,
ABS54AVAG TYPE STRING,
PRIMANOTA TYPE STRING,
NW101 TYPE STRING,
NW600 TYPE STRING,
NW102 TYPE STRING,
NW201 TYPE STRING,
NW670_3 TYPE STRING,
NW671_3 TYPE STRING,
R59710_1 TYPE STRING,
R59710_2 TYPE STRING,
R59710_3 TYPE STRING,
R59710_4 TYPE STRING,
OUT_PRIMANOTA TYPE STRING,
LEGAL_HOLDER TYPE STRING,
GRP_M1 TYPE STRING,
ISSR_COMP_RE TYPE STRING,
DEAL_PRIMANOTA TYPE STRING,
DEAL_PRIM_ADD TYPE STRING,
RSTOCKBAV_RE TYPE STRING,
RSTOCKFA_RE TYPE STRING,
COUNTRY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISSR_MV_DE_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_ISSR_MV_DE_STR-RACCT sy-vline 
WA_ISSR_MV_DE_STR-RSPARTE sy-vline 
WA_ISSR_MV_DE_STR-RSTOCKBAV sy-vline 
WA_ISSR_MV_DE_STR-RSTOCKFA sy-vline 
WA_ISSR_MV_DE_STR-RDV sy-vline 
WA_ISSR_MV_DE_STR-RDVUA sy-vline 
WA_ISSR_MV_DE_STR-RRANTYP sy-vline 
WA_ISSR_MV_DE_STR-RASSET_NR sy-vline 
WA_ISSR_MV_DE_STR-RPARTNER sy-vline 
WA_ISSR_MV_DE_STR-RPARTNER_QUOTE sy-vline 
WA_ISSR_MV_DE_STR-RSEC_ACCOUNT sy-vline 
WA_ISSR_MV_DE_STR-PRODUCT_CAT sy-vline 
WA_ISSR_MV_DE_STR-RPRODUCT_TYPE sy-vline 
WA_ISSR_MV_DE_STR-RFLOWTYPE sy-vline 
WA_ISSR_MV_DE_STR-ABS54AVAG sy-vline 
WA_ISSR_MV_DE_STR-PRIMANOTA sy-vline 
WA_ISSR_MV_DE_STR-NW101 sy-vline 
WA_ISSR_MV_DE_STR-NW600 sy-vline 
WA_ISSR_MV_DE_STR-NW102 sy-vline 
WA_ISSR_MV_DE_STR-NW201 sy-vline 
WA_ISSR_MV_DE_STR-NW670_3 sy-vline 
WA_ISSR_MV_DE_STR-NW671_3 sy-vline 
WA_ISSR_MV_DE_STR-R59710_1 sy-vline 
WA_ISSR_MV_DE_STR-R59710_2 sy-vline 
WA_ISSR_MV_DE_STR-R59710_3 sy-vline 
WA_ISSR_MV_DE_STR-R59710_4 sy-vline 
WA_ISSR_MV_DE_STR-OUT_PRIMANOTA sy-vline 
WA_ISSR_MV_DE_STR-LEGAL_HOLDER sy-vline 
WA_ISSR_MV_DE_STR-GRP_M1 sy-vline 
WA_ISSR_MV_DE_STR-ISSR_COMP_RE sy-vline 
WA_ISSR_MV_DE_STR-DEAL_PRIMANOTA sy-vline 
WA_ISSR_MV_DE_STR-DEAL_PRIM_ADD sy-vline 
WA_ISSR_MV_DE_STR-RSTOCKBAV_RE sy-vline 
WA_ISSR_MV_DE_STR-RSTOCKFA_RE sy-vline 
WA_ISSR_MV_DE_STR-COUNTRY sy-vline      INTO ld_text SEPARATED BY SPACE.

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