ABAP Select data from SAP table HRV5551A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRV5551A 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 HRV5551A. 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 HRV5551A 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_HRV5551A TYPE STANDARD TABLE OF HRV5551A,
      WA_HRV5551A TYPE HRV5551A,
      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: <HRV5551A> TYPE HRV5551A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRV5551A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRV5551A
  INTO TABLE IT_HRV5551A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRV5551A
*  INTO TABLE @DATA(IT_HRV5551A2).
*--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_HRV5551A INDEX 1 INTO DATA(WA_HRV5551A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRV5551A ASSIGNING <HRV5551A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRV5551A>-MANDT = 1.
<HRV5551A>-PLVAR = 1.
<HRV5551A>-OTYPE = 1.
<HRV5551A>-OBJID = 1.
<HRV5551A>-SUBTY = 1.

ENDLOOP.

LOOP AT IT_HRV5551A INTO WA_HRV5551A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRV5551A-ISTAT, sy-vline,
  WA_HRV5551A-BEGDA, sy-vline,
  WA_HRV5551A-ENDDA, sy-vline,
  WA_HRV5551A-FLAG, sy-vline,
  WA_HRV5551A-TABSEQNR, sy-vline,
  WA_HRV5551A-LOGSYS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRV5551A 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_HRV5551A 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_HRV5551A INTO WA_HRV5551A.


*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 ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRV5551A-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRV5551A-LOGSYS.
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_HRV5551A_STR, 
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
SUBTY TYPE STRING,
ISTAT TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
FLAG TYPE STRING,
TABSEQNR TYPE STRING,
LOGSYS TYPE STRING,
R3_SALES_ORG TYPE STRING,
R3_SALES_OFFICE TYPE STRING,
R3_SALES_GROUP TYPE STRING,
R3_DISTR_CHANNEL TYPE STRING,
R3_DIVISION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRV5551A_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_HRV5551A_STR-MANDT sy-vline 
WA_HRV5551A_STR-PLVAR sy-vline 
WA_HRV5551A_STR-OTYPE sy-vline 
WA_HRV5551A_STR-OBJID sy-vline 
WA_HRV5551A_STR-SUBTY sy-vline 
WA_HRV5551A_STR-ISTAT sy-vline 
WA_HRV5551A_STR-BEGDA sy-vline 
WA_HRV5551A_STR-ENDDA sy-vline 
WA_HRV5551A_STR-FLAG sy-vline 
WA_HRV5551A_STR-TABSEQNR sy-vline 
WA_HRV5551A_STR-LOGSYS sy-vline 
WA_HRV5551A_STR-R3_SALES_ORG sy-vline 
WA_HRV5551A_STR-R3_SALES_OFFICE sy-vline 
WA_HRV5551A_STR-R3_SALES_GROUP sy-vline 
WA_HRV5551A_STR-R3_DISTR_CHANNEL sy-vline 
WA_HRV5551A_STR-R3_DIVISION sy-vline      INTO ld_text SEPARATED BY SPACE.

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