ABAP Select data from SAP table ISSR_OUT_CUSTOM_CHAR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISSR_OUT_CUSTOM_CHAR 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_OUT_CUSTOM_CHAR. 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_OUT_CUSTOM_CHAR 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_OUT_CUSTOM_CHAR TYPE STANDARD TABLE OF ISSR_OUT_CUSTOM_CHAR,
      WA_ISSR_OUT_CUSTOM_CHAR TYPE ISSR_OUT_CUSTOM_CHAR,
      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_OUT_CUSTOM_CHAR> TYPE ISSR_OUT_CUSTOM_CHAR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISSR_OUT_CUSTOM_CHAR
*  INTO TABLE @DATA(IT_ISSR_OUT_CUSTOM_CHAR2).
*--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_OUT_CUSTOM_CHAR INDEX 1 INTO DATA(WA_ISSR_OUT_CUSTOM_CHAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISSR_OUT_CUSTOM_CHAR>-FIELD001 = 1.
<ISSR_OUT_CUSTOM_CHAR>-FIELD002 = 1.
<ISSR_OUT_CUSTOM_CHAR>-FIELD003 = 1.
<ISSR_OUT_CUSTOM_CHAR>-FIELD004 = 1.
<ISSR_OUT_CUSTOM_CHAR>-FIELD005 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISSR_OUT_CUSTOM_CHAR-FIELD006, sy-vline,
  WA_ISSR_OUT_CUSTOM_CHAR-FIELD007, sy-vline,
  WA_ISSR_OUT_CUSTOM_CHAR-FIELD008, sy-vline,
  WA_ISSR_OUT_CUSTOM_CHAR-FIELD009, sy-vline,
  WA_ISSR_OUT_CUSTOM_CHAR-FIELD010, sy-vline,
  WA_ISSR_OUT_CUSTOM_CHAR-FIELD011, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISSR_OUT_CUSTOM_CHAR 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_OUT_CUSTOM_CHAR 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_OUT_CUSTOM_CHAR INTO WA_ISSR_OUT_CUSTOM_CHAR.


*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_ISSR_OUT_CUSTOM_CHAR_STR, 
FIELD001 TYPE STRING,
FIELD002 TYPE STRING,
FIELD003 TYPE STRING,
FIELD004 TYPE STRING,
FIELD005 TYPE STRING,
FIELD006 TYPE STRING,
FIELD007 TYPE STRING,
FIELD008 TYPE STRING,
FIELD009 TYPE STRING,
FIELD010 TYPE STRING,
FIELD011 TYPE STRING,
FIELD012 TYPE STRING,
FIELD013 TYPE STRING,
FIELD014 TYPE STRING,
FIELD015 TYPE STRING,
FIELD016 TYPE STRING,
FIELD017 TYPE STRING,
FIELD018 TYPE STRING,
FIELD019 TYPE STRING,
FIELD020 TYPE STRING,
FIELD021 TYPE STRING,
FIELD022 TYPE STRING,
FIELD023 TYPE STRING,
FIELD024 TYPE STRING,
FIELD025 TYPE STRING,
FIELD026 TYPE STRING,
FIELD027 TYPE STRING,
FIELD028 TYPE STRING,
FIELD029 TYPE STRING,
FIELD030 TYPE STRING,
OUTBLOCK TYPE STRING,
INT_FLOWTYPE TYPE STRING,
LINECOLOR TYPE STRING,
CELLTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISSR_OUT_CUSTOM_CHAR_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_OUT_CUSTOM_CHAR_STR-FIELD001 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD002 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD003 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD004 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD005 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD006 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD007 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD008 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD009 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD010 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD011 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD012 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD013 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD014 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD015 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD016 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD017 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD018 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD019 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD020 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD021 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD022 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD023 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD024 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD025 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD026 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD027 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD028 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD029 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-FIELD030 sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-OUTBLOCK sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-INT_FLOWTYPE sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-LINECOLOR sy-vline 
WA_ISSR_OUT_CUSTOM_CHAR_STR-CELLTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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