ABAP Select data from SAP table ISSUE_RDNO_UISUB_PARTNER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISSUE_RDNO_UISUB_PARTNER
*  INTO TABLE @DATA(IT_ISSUE_RDNO_UISUB_PARTNER2).
*--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_ISSUE_RDNO_UISUB_PARTNER INDEX 1 INTO DATA(WA_ISSUE_RDNO_UISUB_PARTNER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISSUE_RDNO_UISUB_PARTNER>-GUIDP = 1.
<ISSUE_RDNO_UISUB_PARTNER>-PARNR = 1.
<ISSUE_RDNO_UISUB_PARTNER>-TYPE_PAR = 1.
<ISSUE_RDNO_UISUB_PARTNER>-FUNC_PAR = 1.
<ISSUE_RDNO_UISUB_PARTNER>-PAR_ACTIVE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISSUE_RDNO_UISUB_PARTNER-DELETED, sy-vline,
  WA_ISSUE_RDNO_UISUB_PARTNER-MODIFIABLE, sy-vline,
  WA_ISSUE_RDNO_UISUB_PARTNER-MODIFIED, sy-vline,
  WA_ISSUE_RDNO_UISUB_PARTNER-NAME, sy-vline,
  WA_ISSUE_RDNO_UISUB_PARTNER-COMM, sy-vline,
  WA_ISSUE_RDNO_UISUB_PARTNER-COMM_ADR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISSUE_RDNO_UISUB_PARTNER 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_ISSUE_RDNO_UISUB_PARTNER 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_ISSUE_RDNO_UISUB_PARTNER INTO WA_ISSUE_RDNO_UISUB_PARTNER.


*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_ISSUE_RDNO_UISUB_PARTNER_STR, 
GUIDP TYPE STRING,
PARNR TYPE STRING,
TYPE_PAR TYPE STRING,
FUNC_PAR TYPE STRING,
PAR_ACTIVE TYPE STRING,
DELETED TYPE STRING,
MODIFIABLE TYPE STRING,
MODIFIED TYPE STRING,
NAME TYPE STRING,
COMM TYPE STRING,
COMM_ADR TYPE STRING,
COMM_ACT TYPE STRING,
FUNC_STXT TYPE STRING,
TYPE_STXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISSUE_RDNO_UISUB_PARTNER_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_ISSUE_RDNO_UISUB_PARTNER_STR-GUIDP sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-PARNR sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-TYPE_PAR sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-FUNC_PAR sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-PAR_ACTIVE sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-DELETED sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-MODIFIABLE sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-MODIFIED sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-NAME sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-COMM sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-COMM_ADR sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-COMM_ACT sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-FUNC_STXT sy-vline 
WA_ISSUE_RDNO_UISUB_PARTNER_STR-TYPE_STXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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