ABAP Select data from SAP table PIE_SP_PAYRUN_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIE_SP_PAYRUN_ALV
*  INTO TABLE @DATA(IT_PIE_SP_PAYRUN_ALV2).
*--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_PIE_SP_PAYRUN_ALV INDEX 1 INTO DATA(WA_PIE_SP_PAYRUN_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIE_SP_PAYRUN_ALV>-ERNIE = 1.
<PIE_SP_PAYRUN_ALV>-TAXYR = 1.
<PIE_SP_PAYRUN_ALV>-PAYREF = 1.
<PIE_SP_PAYRUN_ALV>-DLDTE = 1.
<PIE_SP_PAYRUN_ALV>-DLKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIE_SP_PAYRUN_ALV-LINEID, sy-vline,
  WA_PIE_SP_PAYRUN_ALV-PPSN, sy-vline,
  WA_PIE_SP_PAYRUN_ALV-EMPID, sy-vline,
  WA_PIE_SP_PAYRUN_ALV-EMPRF, sy-vline,
  WA_PIE_SP_PAYRUN_ALV-PRR_TX, sy-vline,
  WA_PIE_SP_PAYRUN_ALV-PRR_PR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIE_SP_PAYRUN_ALV 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_PIE_SP_PAYRUN_ALV 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_PIE_SP_PAYRUN_ALV INTO WA_PIE_SP_PAYRUN_ALV.


*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 TAXYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PIE_SP_PAYRUN_ALV-TAXYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIE_SP_PAYRUN_ALV-TAXYR.
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_PIE_SP_PAYRUN_ALV_STR, 
ERNIE TYPE STRING,
TAXYR TYPE STRING,
PAYREF TYPE STRING,
DLDTE TYPE STRING,
DLKEY TYPE STRING,
LINEID TYPE STRING,
PPSN TYPE STRING,
EMPID TYPE STRING,
EMPRF TYPE STRING,
PRR_TX TYPE STRING,
PRR_PR TYPE STRING,
PRR_US TYPE STRING,
PRR_LP TYPE STRING,
S_PERNR TYPE STRING,
S_SEQNR TYPE STRING,
S_FPPER TYPE STRING,
S_ABKRS TYPE STRING,
S_PAYDT TYPE STRING,
S_FPBEG TYPE STRING,
S_FPEND TYPE STRING,
S_STATE TYPE STRING,
S_PAYREF TYPE STRING,
S_RUNDT TYPE STRING,
S_RUNTM TYPE STRING,
S_SUBID TYPE STRING,
S_TXPD TYPE STRING,
S_PRSI TYPE STRING,
S_USPD TYPE STRING,
S_LPPD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIE_SP_PAYRUN_ALV_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_PIE_SP_PAYRUN_ALV_STR-ERNIE sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-TAXYR sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-PAYREF sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-DLDTE sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-DLKEY sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-LINEID sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-PPSN sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-EMPID sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-EMPRF sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-PRR_TX sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-PRR_PR sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-PRR_US sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-PRR_LP sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_PERNR sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_SEQNR sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_FPPER sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_ABKRS sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_PAYDT sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_FPBEG sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_FPEND sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_STATE sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_PAYREF sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_RUNDT sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_RUNTM sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_SUBID sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_TXPD sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_PRSI sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_USPD sy-vline 
WA_PIE_SP_PAYRUN_ALV_STR-S_LPPD sy-vline      INTO ld_text SEPARATED BY SPACE.

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