ABAP Select data from SAP table /SAPAPO/FCST_CHAR_STR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/FCST_CHAR_STR 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 /SAPAPO/FCST_CHAR_STR. 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 /SAPAPO/FCST_CHAR_STR 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_/SAPAPO/FCST_CHAR_STR TYPE STANDARD TABLE OF /SAPAPO/FCST_CHAR_STR,
      WA_/SAPAPO/FCST_CHAR_STR TYPE /SAPAPO/FCST_CHAR_STR,
      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: </SAPAPO/FCST_CHAR_STR> TYPE /SAPAPO/FCST_CHAR_STR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/FCST_CHAR_STR
  INTO TABLE IT_/SAPAPO/FCST_CHAR_STR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/FCST_CHAR_STR
*  INTO TABLE @DATA(IT_/SAPAPO/FCST_CHAR_STR2).
*--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_/SAPAPO/FCST_CHAR_STR INDEX 1 INTO DATA(WA_/SAPAPO/FCST_CHAR_STR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/FCST_CHAR_STR ASSIGNING </SAPAPO/FCST_CHAR_STR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/FCST_CHAR_STR>-CHBOXFCST = 1.
</SAPAPO/FCST_CHAR_STR>-CHBOXHIST = 1.
</SAPAPO/FCST_CHAR_STR>-CHBOXCFCS = 1.
</SAPAPO/FCST_CHAR_STR>-CHBOXCHIS = 1.
</SAPAPO/FCST_CHAR_STR>-CHBOXEXPT = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/FCST_CHAR_STR INTO WA_/SAPAPO/FCST_CHAR_STR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/FCST_CHAR_STR-CHBOXSEAS, sy-vline,
  WA_/SAPAPO/FCST_CHAR_STR-CHBOXTREN, sy-vline,
  WA_/SAPAPO/FCST_CHAR_STR-CHBOXGRUND, sy-vline,
  WA_/SAPAPO/FCST_CHAR_STR-FLDIOBJNM1, sy-vline,
  WA_/SAPAPO/FCST_CHAR_STR-FLDIOBJNM2, sy-vline,
  WA_/SAPAPO/FCST_CHAR_STR-FLG_SHOW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/FCST_CHAR_STR 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_/SAPAPO/FCST_CHAR_STR 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_/SAPAPO/FCST_CHAR_STR INTO WA_/SAPAPO/FCST_CHAR_STR.


*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_/SAPAPO/FCST_CHAR_STR_STR, 
CHBOXFCST TYPE STRING,
CHBOXHIST TYPE STRING,
CHBOXCFCS TYPE STRING,
CHBOXCHIS TYPE STRING,
CHBOXEXPT TYPE STRING,
CHBOXSEAS TYPE STRING,
CHBOXTREN TYPE STRING,
CHBOXGRUND TYPE STRING,
FLDIOBJNM1 TYPE STRING,
FLDIOBJNM2 TYPE STRING,
FLG_SHOW TYPE STRING,
FLG_DISPLAY_ONLY TYPE STRING,
FLG_MAN_SMOOTH TYPE STRING,
ALPHA TYPE STRING,
X_VOPER TYPE STRING,
X_BIPER TYPE STRING,
Y_VOWERT TYPE STRING,
Y_BIWERT TYPE STRING,
FLG_TK_FCST TYPE STRING,
FLG_TK_ALL TYPE STRING,
FLG_TK_MAN TYPE STRING,
TK_X_VOPER TYPE STRING,
TK_X_BIPER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/FCST_CHAR_STR_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_/SAPAPO/FCST_CHAR_STR_STR-CHBOXFCST sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-CHBOXHIST sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-CHBOXCFCS sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-CHBOXCHIS sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-CHBOXEXPT sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-CHBOXSEAS sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-CHBOXTREN sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-CHBOXGRUND sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-FLDIOBJNM1 sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-FLDIOBJNM2 sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-FLG_SHOW sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-FLG_DISPLAY_ONLY sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-FLG_MAN_SMOOTH sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-ALPHA sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-X_VOPER sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-X_BIPER sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-Y_VOWERT sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-Y_BIWERT sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-FLG_TK_FCST sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-FLG_TK_ALL sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-FLG_TK_MAN sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-TK_X_VOPER sy-vline 
WA_/SAPAPO/FCST_CHAR_STR_STR-TK_X_BIPER sy-vline      INTO ld_text SEPARATED BY SPACE.

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