ABAP Select data from SAP table ISSR_BASI_RG_WORKLIST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISSR_BASI_RG_WORKLIST 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_BASI_RG_WORKLIST. 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_BASI_RG_WORKLIST 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_BASI_RG_WORKLIST TYPE STANDARD TABLE OF ISSR_BASI_RG_WORKLIST,
      WA_ISSR_BASI_RG_WORKLIST TYPE ISSR_BASI_RG_WORKLIST,
      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_BASI_RG_WORKLIST> TYPE ISSR_BASI_RG_WORKLIST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISSR_BASI_RG_WORKLIST
*  INTO TABLE @DATA(IT_ISSR_BASI_RG_WORKLIST2).
*--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_BASI_RG_WORKLIST INDEX 1 INTO DATA(WA_ISSR_BASI_RG_WORKLIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISSR_BASI_RG_WORKLIST>-MANDT = 1.
<ISSR_BASI_RG_WORKLIST>-RGGUID = 1.
<ISSR_BASI_RG_WORKLIST>-RGSENDEROBJNR = 1.
<ISSR_BASI_RG_WORKLIST>-COUNTRY_VAR = 1.
<ISSR_BASI_RG_WORKLIST>-COMP_CODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISSR_BASI_RG_WORKLIST-DIFFKEY, sy-vline,
  WA_ISSR_BASI_RG_WORKLIST-PRODUCT_CATEGORY, sy-vline,
  WA_ISSR_BASI_RG_WORKLIST-PRODUCT_TYPE, sy-vline,
  WA_ISSR_BASI_RG_WORKLIST-ASSET_NO, sy-vline,
  WA_ISSR_BASI_RG_WORKLIST-SEC_ACCOUNT, sy-vline,
  WA_ISSR_BASI_RG_WORKLIST-PORTFOLIO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISSR_BASI_RG_WORKLIST 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_BASI_RG_WORKLIST 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_BASI_RG_WORKLIST INTO WA_ISSR_BASI_RG_WORKLIST.


*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 ASSET_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISSR_BASI_RG_WORKLIST-ASSET_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSR_BASI_RG_WORKLIST-ASSET_NO.
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_BASI_RG_WORKLIST_STR, 
MANDT TYPE STRING,
RGGUID TYPE STRING,
RGSENDEROBJNR TYPE STRING,
COUNTRY_VAR TYPE STRING,
COMP_CODE TYPE STRING,
DIFFKEY TYPE STRING,
PRODUCT_CATEGORY TYPE STRING,
PRODUCT_TYPE TYPE STRING,
ASSET_NO TYPE STRING,
SEC_ACCOUNT TYPE STRING,
PORTFOLIO TYPE STRING,
ACCOUNT_GRP TYPE STRING,
LOT_ID TYPE STRING,
RGRECEIVEROBJNR TYPE STRING,
RGREASON TYPE STRING,
RGSTATE TYPE STRING,
RGVALIDFROM TYPE STRING,
RGVALIDTO TYPE STRING,
RGINTREF TYPE STRING,
RGINFO TYPE STRING,
RESPONSIBLE TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
RGREASONPOSITION TYPE STRING,
XRGREASON TYPE STRING,
RGSTATEPOSITION TYPE STRING,
RGUPDATEALLOWED TYPE STRING,
RGACCEPTONLY TYPE STRING,
RGWLVISIBLE TYPE STRING,
RGWLSUMMARIZE TYPE STRING,
XRGSTATE TYPE STRING,
XRGSTATEUPDATE TYPE STRING,
RGDONE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISSR_BASI_RG_WORKLIST_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_BASI_RG_WORKLIST_STR-MANDT sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGGUID sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGSENDEROBJNR sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-COUNTRY_VAR sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-COMP_CODE sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-DIFFKEY sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-PRODUCT_CATEGORY sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-PRODUCT_TYPE sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-ASSET_NO sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-SEC_ACCOUNT sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-PORTFOLIO sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-ACCOUNT_GRP sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-LOT_ID sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGRECEIVEROBJNR sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGREASON sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGSTATE sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGVALIDFROM sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGVALIDTO sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGINTREF sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGINFO sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RESPONSIBLE sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RERF sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-DERF sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-TERF sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-REHER sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RBEAR sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-DBEAR sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-TBEAR sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RBHER sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGREASONPOSITION sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-XRGREASON sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGSTATEPOSITION sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGUPDATEALLOWED sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGACCEPTONLY sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGWLVISIBLE sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGWLSUMMARIZE sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-XRGSTATE sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-XRGSTATEUPDATE sy-vline 
WA_ISSR_BASI_RG_WORKLIST_STR-RGDONE sy-vline      INTO ld_text SEPARATED BY SPACE.

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