ABAP Select data from SAP table RCJ_CUS_TBCL_40A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RCJ_CUS_TBCL_40A 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 RCJ_CUS_TBCL_40A. 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 RCJ_CUS_TBCL_40A 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_RCJ_CUS_TBCL_40A TYPE STANDARD TABLE OF RCJ_CUS_TBCL_40A,
      WA_RCJ_CUS_TBCL_40A TYPE RCJ_CUS_TBCL_40A,
      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: <RCJ_CUS_TBCL_40A> TYPE RCJ_CUS_TBCL_40A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RCJ_CUS_TBCL_40A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RCJ_CUS_TBCL_40A
  INTO TABLE IT_RCJ_CUS_TBCL_40A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCJ_CUS_TBCL_40A
*  INTO TABLE @DATA(IT_RCJ_CUS_TBCL_40A2).
*--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_RCJ_CUS_TBCL_40A INDEX 1 INTO DATA(WA_RCJ_CUS_TBCL_40A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RCJ_CUS_TBCL_40A ASSIGNING <RCJ_CUS_TBCL_40A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCJ_CUS_TBCL_40A>-MANDT = 1.
<RCJ_CUS_TBCL_40A>-PROFILE = 1.
<RCJ_CUS_TBCL_40A>-TYPE = 1.
<RCJ_CUS_TBCL_40A>-HLT = 1.
<RCJ_CUS_TBCL_40A>-LAYER_TYPE = 1.

ENDLOOP.

LOOP AT IT_RCJ_CUS_TBCL_40A INTO WA_RCJ_CUS_TBCL_40A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCJ_CUS_TBCL_40A-FIRSTDATE, sy-vline,
  WA_RCJ_CUS_TBCL_40A-SECONDDATE, sy-vline,
  WA_RCJ_CUS_TBCL_40A-HEIGHT, sy-vline,
  WA_RCJ_CUS_TBCL_40A-OFFSET, sy-vline,
  WA_RCJ_CUS_TBCL_40A-SYMBOLTYPE, sy-vline,
  WA_RCJ_CUS_TBCL_40A-FMT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCJ_CUS_TBCL_40A 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_RCJ_CUS_TBCL_40A 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_RCJ_CUS_TBCL_40A INTO WA_RCJ_CUS_TBCL_40A.


*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_RCJ_CUS_TBCL_40A_STR, 
MANDT TYPE STRING,
PROFILE TYPE STRING,
TYPE TYPE STRING,
HLT TYPE STRING,
LAYER_TYPE TYPE STRING,
FIRSTDATE TYPE STRING,
SECONDDATE TYPE STRING,
HEIGHT TYPE STRING,
OFFSET TYPE STRING,
SYMBOLTYPE TYPE STRING,
FMT TYPE STRING,
LAYPRIO TYPE STRING,
GAPTYPE TYPE STRING,
GAPHLT TYPE STRING,
BMP_FILE TYPE STRING,
NOT_MOVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCJ_CUS_TBCL_40A_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_RCJ_CUS_TBCL_40A_STR-MANDT sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-PROFILE sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-TYPE sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-HLT sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-LAYER_TYPE sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-FIRSTDATE sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-SECONDDATE sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-HEIGHT sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-OFFSET sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-SYMBOLTYPE sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-FMT sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-LAYPRIO sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-GAPTYPE sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-GAPHLT sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-BMP_FILE sy-vline 
WA_RCJ_CUS_TBCL_40A_STR-NOT_MOVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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