ABAP Select data from SAP table HRPAYBE_S_SDOG_ERKEY_DECL_HEAD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRPAYBE_S_SDOG_ERKEY_DECL_HEAD
*  INTO TABLE @DATA(IT_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD2).
*--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_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD INDEX 1 INTO DATA(WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRPAYBE_S_SDOG_ERKEY_DECL_HEAD>-ERYEA = 1.
<HRPAYBE_S_SDOG_ERKEY_DECL_HEAD>-ERID = 1.
<HRPAYBE_S_SDOG_ERKEY_DECL_HEAD>-ERMOD = 1.
<HRPAYBE_S_SDOG_ERKEY_DECL_HEAD>-ERTMN = 1.
<HRPAYBE_S_SDOG_ERKEY_DECL_HEAD>-ERTFN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD-ERPRO, sy-vline,
  WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD-ERTMN_SB, sy-vline,
  WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD-ERTFN_SB, sy-vline,
  WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD-EE_RELEVANCY_FEATURE, sy-vline,
  WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD-COMID, sy-vline,
  WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD-RSZNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD 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_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD 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_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD INTO WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD.


*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 SPKLG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD-SPKLG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD-SPKLG.
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_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR, 
ERYEA TYPE STRING,
ERID TYPE STRING,
ERMOD TYPE STRING,
ERTMN TYPE STRING,
ERTFN TYPE STRING,
ERPRO TYPE STRING,
ERTMN_SB TYPE STRING,
ERTFN_SB TYPE STRING,
EE_RELEVANCY_FEATURE TYPE STRING,
COMID TYPE STRING,
RSZNR TYPE STRING,
SPKLG TYPE STRING,
CCODE TYPE STRING,
VATNR TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
ADSTR TYPE STRING,
ADNM1 TYPE STRING,
ADCTY TYPE STRING,
ADPCD TYPE STRING,
CPNM1 TYPE STRING,
CPTEL TYPE STRING,
CPFAX TYPE STRING,
CPMAI TYPE STRING,
NAM1F TYPE STRING,
NAM2F TYPE STRING,
ADSTF TYPE STRING,
ADCTF TYPE STRING,
NAM1D TYPE STRING,
NAM2D TYPE STRING,
ADSTD TYPE STRING,
ADCTD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_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_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ERYEA sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ERID sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ERMOD sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ERTMN sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ERTFN sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ERPRO sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ERTMN_SB sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ERTFN_SB sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-EE_RELEVANCY_FEATURE sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-COMID sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-RSZNR sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-SPKLG sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-CCODE sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-VATNR sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-NAME1 sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-NAME2 sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ADSTR sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ADNM1 sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ADCTY sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ADPCD sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-CPNM1 sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-CPTEL sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-CPFAX sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-CPMAI sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-NAM1F sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-NAM2F sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ADSTF sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ADCTF sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-NAM1D sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-NAM2D sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ADSTD sy-vline 
WA_HRPAYBE_S_SDOG_ERKEY_DECL_HEAD_STR-ADCTD sy-vline      INTO ld_text SEPARATED BY SPACE.

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