ABAP Select data from SAP table HRV1018 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRV1018 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 HRV1018. 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 HRV1018 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_HRV1018 TYPE STANDARD TABLE OF HRV1018,
      WA_HRV1018 TYPE HRV1018,
      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: <HRV1018> TYPE HRV1018.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRV1018.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRV1018
  INTO TABLE IT_HRV1018.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRV1018
*  INTO TABLE @DATA(IT_HRV10182).
*--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_HRV1018 INDEX 1 INTO DATA(WA_HRV10182).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRV1018 ASSIGNING <HRV1018>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRV1018>-MANDT = 1.
<HRV1018>-PLVAR = 1.
<HRV1018>-OTYPE = 1.
<HRV1018>-OBJID = 1.
<HRV1018>-SUBTY = 1.

ENDLOOP.

LOOP AT IT_HRV1018 INTO WA_HRV1018.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRV1018-ISTAT, sy-vline,
  WA_HRV1018-BEGDA, sy-vline,
  WA_HRV1018-ENDDA, sy-vline,
  WA_HRV1018-VARYF, sy-vline,
  WA_HRV1018-SEQNR, sy-vline,
  WA_HRV1018-INFTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRV1018 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_HRV1018 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_HRV1018 INTO WA_HRV1018.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRV1018-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRV1018-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRV1018-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRV1018-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_HRV1018-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRV1018-POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRV1018-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRV1018-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SGMNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRV1018-SGMNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRV1018-SGMNT.
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_HRV1018_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,
VARYF TYPE STRING,
SEQNR TYPE STRING,
INFTY TYPE STRING,
OTJID TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
REASN TYPE STRING,
HISTO TYPE STRING,
ITXNR TYPE STRING,
TABNR TYPE STRING,
TABSEQNR TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
KOKRS TYPE STRING,
ROTYPE TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
FIKRS TYPE STRING,
FINCODE TYPE STRING,
FKBER TYPE STRING,
GRANT_NBR TYPE STRING,
FISTL TYPE STRING,
DART TYPE STRING,
UDART TYPE STRING,
SGMNT TYPE STRING,
BUDGET_PD TYPE STRING,
PROZT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRV1018_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_HRV1018_STR-MANDT sy-vline 
WA_HRV1018_STR-PLVAR sy-vline 
WA_HRV1018_STR-OTYPE sy-vline 
WA_HRV1018_STR-OBJID sy-vline 
WA_HRV1018_STR-SUBTY sy-vline 
WA_HRV1018_STR-ISTAT sy-vline 
WA_HRV1018_STR-BEGDA sy-vline 
WA_HRV1018_STR-ENDDA sy-vline 
WA_HRV1018_STR-VARYF sy-vline 
WA_HRV1018_STR-SEQNR sy-vline 
WA_HRV1018_STR-INFTY sy-vline 
WA_HRV1018_STR-OTJID sy-vline 
WA_HRV1018_STR-AEDTM sy-vline 
WA_HRV1018_STR-UNAME sy-vline 
WA_HRV1018_STR-REASN sy-vline 
WA_HRV1018_STR-HISTO sy-vline 
WA_HRV1018_STR-ITXNR sy-vline 
WA_HRV1018_STR-TABNR sy-vline 
WA_HRV1018_STR-TABSEQNR sy-vline 
WA_HRV1018_STR-BUKRS sy-vline 
WA_HRV1018_STR-GSBER sy-vline 
WA_HRV1018_STR-KOKRS sy-vline 
WA_HRV1018_STR-ROTYPE sy-vline 
WA_HRV1018_STR-KOSTL sy-vline 
WA_HRV1018_STR-AUFNR sy-vline 
WA_HRV1018_STR-POSNR sy-vline 
WA_HRV1018_STR-FIKRS sy-vline 
WA_HRV1018_STR-FINCODE sy-vline 
WA_HRV1018_STR-FKBER sy-vline 
WA_HRV1018_STR-GRANT_NBR sy-vline 
WA_HRV1018_STR-FISTL sy-vline 
WA_HRV1018_STR-DART sy-vline 
WA_HRV1018_STR-UDART sy-vline 
WA_HRV1018_STR-SGMNT sy-vline 
WA_HRV1018_STR-BUDGET_PD sy-vline 
WA_HRV1018_STR-PROZT sy-vline      INTO ld_text SEPARATED BY SPACE.

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