ABAP Select data from SAP table RJHFPAVB1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJHFPAVB1 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 RJHFPAVB1. 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 RJHFPAVB1 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_RJHFPAVB1 TYPE STANDARD TABLE OF RJHFPAVB1,
      WA_RJHFPAVB1 TYPE RJHFPAVB1,
      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: <RJHFPAVB1> TYPE RJHFPAVB1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJHFPAVB1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJHFPAVB1
  INTO TABLE IT_RJHFPAVB1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJHFPAVB1
*  INTO TABLE @DATA(IT_RJHFPAVB12).
*--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_RJHFPAVB1 INDEX 1 INTO DATA(WA_RJHFPAVB12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJHFPAVB1 ASSIGNING <RJHFPAVB1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJHFPAVB1>-NAME1 = 1.
<RJHFPAVB1>-NRART = 1.
<RJHFPAVB1>-FEHGR = 1.
<RJHFPAVB1>-SPRAS = 1.
<RJHFPAVB1>-TELFX = 1.

ENDLOOP.

LOOP AT IT_RJHFPAVB1 INTO WA_RJHFPAVB1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJHFPAVB1-TELTX, sy-vline,
  WA_RJHFPAVB1-TELX1, sy-vline,
  WA_RJHFPAVB1-CNTPA, sy-vline,
  WA_RJHFPAVB1-REFOBJTYPE, sy-vline,
  WA_RJHFPAVB1-REFOBJKEY, sy-vline,
  WA_RJHFPAVB1-REFLOGSYS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJHFPAVB1 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_RJHFPAVB1 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_RJHFPAVB1 INTO WA_RJHFPAVB1.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RJHFPAVB1-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHFPAVB1-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFLOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHFPAVB1-REFLOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHFPAVB1-REFLOGSYS.
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_RJHFPAVB1_STR, 
NAME1 TYPE STRING,
NRART TYPE STRING,
FEHGR TYPE STRING,
SPRAS TYPE STRING,
TELFX TYPE STRING,
TELTX TYPE STRING,
TELX1 TYPE STRING,
CNTPA TYPE STRING,
REFOBJTYPE TYPE STRING,
REFOBJKEY TYPE STRING,
REFLOGSYS TYPE STRING,
STCD1 TYPE STRING,
STCD2 TYPE STRING,
STCD3 TYPE STRING,
STCD4 TYPE STRING,
STKZN TYPE STRING,
STCDT TYPE STRING,
J_1KFREPRE TYPE STRING,
J_1KFTBUS TYPE STRING,
J_1KFTIND TYPE STRING,
DRSTS TYPE STRING,
UPDKZ TYPE STRING,
SELKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJHFPAVB1_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_RJHFPAVB1_STR-NAME1 sy-vline 
WA_RJHFPAVB1_STR-NRART sy-vline 
WA_RJHFPAVB1_STR-FEHGR sy-vline 
WA_RJHFPAVB1_STR-SPRAS sy-vline 
WA_RJHFPAVB1_STR-TELFX sy-vline 
WA_RJHFPAVB1_STR-TELTX sy-vline 
WA_RJHFPAVB1_STR-TELX1 sy-vline 
WA_RJHFPAVB1_STR-CNTPA sy-vline 
WA_RJHFPAVB1_STR-REFOBJTYPE sy-vline 
WA_RJHFPAVB1_STR-REFOBJKEY sy-vline 
WA_RJHFPAVB1_STR-REFLOGSYS sy-vline 
WA_RJHFPAVB1_STR-STCD1 sy-vline 
WA_RJHFPAVB1_STR-STCD2 sy-vline 
WA_RJHFPAVB1_STR-STCD3 sy-vline 
WA_RJHFPAVB1_STR-STCD4 sy-vline 
WA_RJHFPAVB1_STR-STKZN sy-vline 
WA_RJHFPAVB1_STR-STCDT sy-vline 
WA_RJHFPAVB1_STR-J_1KFREPRE sy-vline 
WA_RJHFPAVB1_STR-J_1KFTBUS sy-vline 
WA_RJHFPAVB1_STR-J_1KFTIND sy-vline 
WA_RJHFPAVB1_STR-DRSTS sy-vline 
WA_RJHFPAVB1_STR-UPDKZ sy-vline 
WA_RJHFPAVB1_STR-SELKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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