ABAP Select data from SAP table REXC_CH_AJR_RECINDX_C into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXC_CH_AJR_RECINDX_C
*  INTO TABLE @DATA(IT_REXC_CH_AJR_RECINDX_C2).
*--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_REXC_CH_AJR_RECINDX_C INDEX 1 INTO DATA(WA_REXC_CH_AJR_RECINDX_C2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXC_CH_AJR_RECINDX_C>-CONDOBJ = 1.
<REXC_CH_AJR_RECINDX_C>-MANDT = 1.
<REXC_CH_AJR_RECINDX_C>-RECINDXGUID = 1.
<REXC_CH_AJR_RECINDX_C>-PROCESSGUID = 1.
<REXC_CH_AJR_RECINDX_C>-INTRENO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXC_CH_AJR_RECINDX_C-ADJMINDEXBASE, sy-vline,
  WA_REXC_CH_AJR_RECINDX_C-ADJMINDEXDATE, sy-vline,
  WA_REXC_CH_AJR_RECINDX_C-INDEXSERIES, sy-vline,
  WA_REXC_CH_AJR_RECINDX_C-INDEXBASEYEAR, sy-vline,
  WA_REXC_CH_AJR_RECINDX_C-INDEXBASEACT, sy-vline,
  WA_REXC_CH_AJR_RECINDX_C-FIRSTINDEXBASE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXC_CH_AJR_RECINDX_C 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_REXC_CH_AJR_RECINDX_C 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_REXC_CH_AJR_RECINDX_C INTO WA_REXC_CH_AJR_RECINDX_C.


*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 GJAHR, internal->external for field INDEXBASEYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_REXC_CH_AJR_RECINDX_C-INDEXBASEYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXC_CH_AJR_RECINDX_C-INDEXBASEYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RB_INDEXBASEYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_REXC_CH_AJR_RECINDX_C-RB_INDEXBASEYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXC_CH_AJR_RECINDX_C-RB_INDEXBASEYEAR.
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_REXC_CH_AJR_RECINDX_C_STR, 
CONDOBJ TYPE STRING,
MANDT TYPE STRING,
RECINDXGUID TYPE STRING,
PROCESSGUID TYPE STRING,
INTRENO TYPE STRING,
ADJMINDEXBASE TYPE STRING,
ADJMINDEXDATE TYPE STRING,
INDEXSERIES TYPE STRING,
INDEXBASEYEAR TYPE STRING,
INDEXBASEACT TYPE STRING,
FIRSTINDEXBASE TYPE STRING,
FIRSTINDEXDATE TYPE STRING,
INDEXCHGPERLAST TYPE STRING,
INDEXCHGPOILAST TYPE STRING,
IGNOREFOLLOWADJM TYPE STRING,
INDEXCHGPERFIRST TYPE STRING,
INDEXCHGPOIFIRST TYPE STRING,
UNITPRICEFIRST TYPE STRING,
RB_INDEXSERIES TYPE STRING,
RB_INDEXBASEYEAR TYPE STRING,
RB_CHGPOINTS TYPE STRING,
RB_CONSPERCENT TYPE STRING,
RB_CONSPOINTS TYPE STRING,
RB_PERCENT_DOWN TYPE STRING,
RB_PERCENT_UP TYPE STRING,
RB_POINTS_DOWN TYPE STRING,
RB_POINTS_UP TYPE STRING,
RB_POIORG_DOWN TYPE STRING,
RB_POIORG_UP TYPE STRING,
RB_CHG_BEFORE TYPE STRING,
RB_CHG_AFTER TYPE STRING,
RB_BORDER_DOWN TYPE STRING,
RB_BORDER_UP TYPE STRING,
RB_BORDER_CDOWN TYPE STRING,
RB_BORDER_CUP TYPE STRING,
XINDEXSERIES TYPE STRING,
XRB_INDEXSERIES TYPE STRING,
LASTADJMINDEXBASE TYPE STRING,
LASTADJMINDEXDATE TYPE STRING,
UNITPRICEDIFF TYPE STRING,
PERCENTAGEPASS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REXC_CH_AJR_RECINDX_C_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_REXC_CH_AJR_RECINDX_C_STR-CONDOBJ sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-MANDT sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RECINDXGUID sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-PROCESSGUID sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-INTRENO sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-ADJMINDEXBASE sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-ADJMINDEXDATE sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-INDEXSERIES sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-INDEXBASEYEAR sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-INDEXBASEACT sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-FIRSTINDEXBASE sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-FIRSTINDEXDATE sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-INDEXCHGPERLAST sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-INDEXCHGPOILAST sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-IGNOREFOLLOWADJM sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-INDEXCHGPERFIRST sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-INDEXCHGPOIFIRST sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-UNITPRICEFIRST sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_INDEXSERIES sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_INDEXBASEYEAR sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_CHGPOINTS sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_CONSPERCENT sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_CONSPOINTS sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_PERCENT_DOWN sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_PERCENT_UP sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_POINTS_DOWN sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_POINTS_UP sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_POIORG_DOWN sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_POIORG_UP sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_CHG_BEFORE sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_CHG_AFTER sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_BORDER_DOWN sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_BORDER_UP sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_BORDER_CDOWN sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-RB_BORDER_CUP sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-XINDEXSERIES sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-XRB_INDEXSERIES sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-LASTADJMINDEXBASE sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-LASTADJMINDEXDATE sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-UNITPRICEDIFF sy-vline 
WA_REXC_CH_AJR_RECINDX_C_STR-PERCENTAGEPASS sy-vline      INTO ld_text SEPARATED BY SPACE.

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