ABAP Select data from SAP table HRPAYCA_S_T4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRPAYCA_S_T4 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 HRPAYCA_S_T4. 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 HRPAYCA_S_T4 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_HRPAYCA_S_T4 TYPE STANDARD TABLE OF HRPAYCA_S_T4,
      WA_HRPAYCA_S_T4 TYPE HRPAYCA_S_T4,
      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: <HRPAYCA_S_T4> TYPE HRPAYCA_S_T4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRPAYCA_S_T4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRPAYCA_S_T4
  INTO TABLE IT_HRPAYCA_S_T4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRPAYCA_S_T4
*  INTO TABLE @DATA(IT_HRPAYCA_S_T42).
*--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_HRPAYCA_S_T4 INDEX 1 INTO DATA(WA_HRPAYCA_S_T42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRPAYCA_S_T4 ASSIGNING <HRPAYCA_S_T4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRPAYCA_S_T4>-X_TAX_YEAR = 1.
<HRPAYCA_S_T4>-X_AMEND = 1.
<HRPAYCA_S_T4>-X_EMPLR_BUTXT = 1.
<HRPAYCA_S_T4>-X_EMPLR_NAME1 = 1.
<HRPAYCA_S_T4>-X_EMPLR_NAME2 = 1.

ENDLOOP.

LOOP AT IT_HRPAYCA_S_T4 INTO WA_HRPAYCA_S_T4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRPAYCA_S_T4-X_EMPLR_STRAS, sy-vline,
  WA_HRPAYCA_S_T4-X_EMPLR_ORT01, sy-vline,
  WA_HRPAYCA_S_T4-X_EMPLR_REGIO, sy-vline,
  WA_HRPAYCA_S_T4-X_EMPLR_PSTLZ, sy-vline,
  WA_HRPAYCA_S_T4-X_BUSNM, sy-vline,
  WA_HRPAYCA_S_T4-X_PERID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRPAYCA_S_T4 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_HRPAYCA_S_T4 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_HRPAYCA_S_T4 INTO WA_HRPAYCA_S_T4.


*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 GJAHR, internal->external for field X_TAX_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_HRPAYCA_S_T4-X_TAX_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRPAYCA_S_T4-X_TAX_YEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field Y_TAX_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_HRPAYCA_S_T4-Y_TAX_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRPAYCA_S_T4-Y_TAX_YEAR.
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_HRPAYCA_S_T4_STR, 
X_TAX_YEAR TYPE STRING,
X_AMEND TYPE STRING,
X_EMPLR_BUTXT TYPE STRING,
X_EMPLR_NAME1 TYPE STRING,
X_EMPLR_NAME2 TYPE STRING,
X_EMPLR_STRAS TYPE STRING,
X_EMPLR_ORT01 TYPE STRING,
X_EMPLR_REGIO TYPE STRING,
X_EMPLR_PSTLZ TYPE STRING,
X_BUSNM TYPE STRING,
X_PERID TYPE STRING,
X_WRKAR TYPE STRING,
X_BOX14 TYPE STRING,
X_BOX16 TYPE STRING,
X_BOX17 TYPE STRING,
X_BOX18 TYPE STRING,
X_BOX20 TYPE STRING,
X_BOX22 TYPE STRING,
X_BOX24 TYPE STRING,
X_BOX26 TYPE STRING,
X_BOX44 TYPE STRING,
X_BOX46 TYPE STRING,
X_BOX50 TYPE STRING,
X_BOX50T TYPE STRING,
X_BOX52 TYPE STRING,
X_BOX55 TYPE STRING,
X_BOX56 TYPE STRING,
X_CPP TYPE STRING,
X_EI TYPE STRING,
X_PPIP TYPE STRING,
X_BOX29 TYPE STRING,
X_NACHN TYPE STRING,
X_VORNA TYPE STRING,
X_INITS TYPE STRING,
X_CAREOF TYPE STRING,
X_STRAS TYPE STRING,
X_LOCAT TYPE STRING,
X_ORT01 TYPE STRING,
X_STATE TYPE STRING,
X_PSTLZ TYPE STRING,
X_LAND1 TYPE STRING,
X_O01_TEXT TYPE STRING,
X_O01 TYPE STRING,
X_O02_TEXT TYPE STRING,
X_O02 TYPE STRING,
X_O03_TEXT TYPE STRING,
X_O03 TYPE STRING,
X_O04_TEXT TYPE STRING,
X_O04 TYPE STRING,
X_O05_TEXT TYPE STRING,
X_O05 TYPE STRING,
X_O06_TEXT TYPE STRING,
X_O06 TYPE STRING,
X_CUSTOM TYPE STRING,
Y_TAX_YEAR TYPE STRING,
Y_AMEND TYPE STRING,
Y_EMPLR_BUTXT TYPE STRING,
Y_EMPLR_NAME1 TYPE STRING,
Y_EMPLR_NAME2 TYPE STRING,
Y_EMPLR_STRAS TYPE STRING,
Y_EMPLR_ORT01 TYPE STRING,
Y_EMPLR_REGIO TYPE STRING,
Y_EMPLR_PSTLZ TYPE STRING,
Y_BUSNM TYPE STRING,
Y_PERID TYPE STRING,
Y_WRKAR TYPE STRING,
Y_BOX14 TYPE STRING,
Y_BOX16 TYPE STRING,
Y_BOX17 TYPE STRING,
Y_BOX18 TYPE STRING,
Y_BOX20 TYPE STRING,
Y_BOX22 TYPE STRING,
Y_BOX24 TYPE STRING,
Y_BOX26 TYPE STRING,
Y_BOX44 TYPE STRING,
Y_BOX46 TYPE STRING,
Y_BOX50 TYPE STRING,
Y_BOX50T TYPE STRING,
Y_BOX52 TYPE STRING,
Y_BOX55 TYPE STRING,
Y_BOX56 TYPE STRING,
Y_CPP TYPE STRING,
Y_EI TYPE STRING,
Y_PPIP TYPE STRING,
Y_BOX29 TYPE STRING,
Y_NACHN TYPE STRING,
Y_VORNA TYPE STRING,
Y_INITS TYPE STRING,
Y_CAREOF TYPE STRING,
Y_STRAS TYPE STRING,
Y_LOCAT TYPE STRING,
Y_ORT01 TYPE STRING,
Y_STATE TYPE STRING,
Y_PSTLZ TYPE STRING,
Y_LAND1 TYPE STRING,
Y_O01_TEXT TYPE STRING,
Y_O01 TYPE STRING,
Y_O02_TEXT TYPE STRING,
Y_O02 TYPE STRING,
Y_O03_TEXT TYPE STRING,
Y_O03 TYPE STRING,
Y_O04_TEXT TYPE STRING,
Y_O04 TYPE STRING,
Y_O05_TEXT TYPE STRING,
Y_O05 TYPE STRING,
Y_O06_TEXT TYPE STRING,
Y_O06 TYPE STRING,
Y_CUSTOM TYPE STRING,
PRINT_INSTRUCTIONS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRPAYCA_S_T4_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_HRPAYCA_S_T4_STR-X_TAX_YEAR sy-vline 
WA_HRPAYCA_S_T4_STR-X_AMEND sy-vline 
WA_HRPAYCA_S_T4_STR-X_EMPLR_BUTXT sy-vline 
WA_HRPAYCA_S_T4_STR-X_EMPLR_NAME1 sy-vline 
WA_HRPAYCA_S_T4_STR-X_EMPLR_NAME2 sy-vline 
WA_HRPAYCA_S_T4_STR-X_EMPLR_STRAS sy-vline 
WA_HRPAYCA_S_T4_STR-X_EMPLR_ORT01 sy-vline 
WA_HRPAYCA_S_T4_STR-X_EMPLR_REGIO sy-vline 
WA_HRPAYCA_S_T4_STR-X_EMPLR_PSTLZ sy-vline 
WA_HRPAYCA_S_T4_STR-X_BUSNM sy-vline 
WA_HRPAYCA_S_T4_STR-X_PERID sy-vline 
WA_HRPAYCA_S_T4_STR-X_WRKAR sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX14 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX16 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX17 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX18 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX20 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX22 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX24 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX26 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX44 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX46 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX50 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX50T sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX52 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX55 sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX56 sy-vline 
WA_HRPAYCA_S_T4_STR-X_CPP sy-vline 
WA_HRPAYCA_S_T4_STR-X_EI sy-vline 
WA_HRPAYCA_S_T4_STR-X_PPIP sy-vline 
WA_HRPAYCA_S_T4_STR-X_BOX29 sy-vline 
WA_HRPAYCA_S_T4_STR-X_NACHN sy-vline 
WA_HRPAYCA_S_T4_STR-X_VORNA sy-vline 
WA_HRPAYCA_S_T4_STR-X_INITS sy-vline 
WA_HRPAYCA_S_T4_STR-X_CAREOF sy-vline 
WA_HRPAYCA_S_T4_STR-X_STRAS sy-vline 
WA_HRPAYCA_S_T4_STR-X_LOCAT sy-vline 
WA_HRPAYCA_S_T4_STR-X_ORT01 sy-vline 
WA_HRPAYCA_S_T4_STR-X_STATE sy-vline 
WA_HRPAYCA_S_T4_STR-X_PSTLZ sy-vline 
WA_HRPAYCA_S_T4_STR-X_LAND1 sy-vline 
WA_HRPAYCA_S_T4_STR-X_O01_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-X_O01 sy-vline 
WA_HRPAYCA_S_T4_STR-X_O02_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-X_O02 sy-vline 
WA_HRPAYCA_S_T4_STR-X_O03_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-X_O03 sy-vline 
WA_HRPAYCA_S_T4_STR-X_O04_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-X_O04 sy-vline 
WA_HRPAYCA_S_T4_STR-X_O05_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-X_O05 sy-vline 
WA_HRPAYCA_S_T4_STR-X_O06_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-X_O06 sy-vline 
WA_HRPAYCA_S_T4_STR-X_CUSTOM sy-vline 
WA_HRPAYCA_S_T4_STR-Y_TAX_YEAR sy-vline 
WA_HRPAYCA_S_T4_STR-Y_AMEND sy-vline 
WA_HRPAYCA_S_T4_STR-Y_EMPLR_BUTXT sy-vline 
WA_HRPAYCA_S_T4_STR-Y_EMPLR_NAME1 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_EMPLR_NAME2 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_EMPLR_STRAS sy-vline 
WA_HRPAYCA_S_T4_STR-Y_EMPLR_ORT01 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_EMPLR_REGIO sy-vline 
WA_HRPAYCA_S_T4_STR-Y_EMPLR_PSTLZ sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BUSNM sy-vline 
WA_HRPAYCA_S_T4_STR-Y_PERID sy-vline 
WA_HRPAYCA_S_T4_STR-Y_WRKAR sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX14 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX16 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX17 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX18 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX20 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX22 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX24 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX26 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX44 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX46 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX50 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX50T sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX52 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX55 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX56 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_CPP sy-vline 
WA_HRPAYCA_S_T4_STR-Y_EI sy-vline 
WA_HRPAYCA_S_T4_STR-Y_PPIP sy-vline 
WA_HRPAYCA_S_T4_STR-Y_BOX29 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_NACHN sy-vline 
WA_HRPAYCA_S_T4_STR-Y_VORNA sy-vline 
WA_HRPAYCA_S_T4_STR-Y_INITS sy-vline 
WA_HRPAYCA_S_T4_STR-Y_CAREOF sy-vline 
WA_HRPAYCA_S_T4_STR-Y_STRAS sy-vline 
WA_HRPAYCA_S_T4_STR-Y_LOCAT sy-vline 
WA_HRPAYCA_S_T4_STR-Y_ORT01 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_STATE sy-vline 
WA_HRPAYCA_S_T4_STR-Y_PSTLZ sy-vline 
WA_HRPAYCA_S_T4_STR-Y_LAND1 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O01_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O01 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O02_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O02 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O03_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O03 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O04_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O04 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O05_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O05 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O06_TEXT sy-vline 
WA_HRPAYCA_S_T4_STR-Y_O06 sy-vline 
WA_HRPAYCA_S_T4_STR-Y_CUSTOM sy-vline 
WA_HRPAYCA_S_T4_STR-PRINT_INSTRUCTIONS sy-vline      INTO ld_text SEPARATED BY SPACE.

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