ABAP Select data from SAP table P34_1721A2_PDF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P34_1721A2_PDF 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 P34_1721A2_PDF. 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 P34_1721A2_PDF 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_P34_1721A2_PDF TYPE STANDARD TABLE OF P34_1721A2_PDF,
      WA_P34_1721A2_PDF TYPE P34_1721A2_PDF,
      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: <P34_1721A2_PDF> TYPE P34_1721A2_PDF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P34_1721A2_PDF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P34_1721A2_PDF
  INTO TABLE IT_P34_1721A2_PDF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P34_1721A2_PDF
*  INTO TABLE @DATA(IT_P34_1721A2_PDF2).
*--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_P34_1721A2_PDF INDEX 1 INTO DATA(WA_P34_1721A2_PDF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P34_1721A2_PDF ASSIGNING <P34_1721A2_PDF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P34_1721A2_PDF>-PERNR = 1.
<P34_1721A2_PDF>-TAXMO = 1.
<P34_1721A2_PDF>-TAX_CODE = 1.
<P34_1721A2_PDF>-NUM_NN = 1.
<P34_1721A2_PDF>-NUM_YY = 1.

ENDLOOP.

LOOP AT IT_P34_1721A2_PDF INTO WA_P34_1721A2_PDF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P34_1721A2_PDF-SPECIAL_NUMBER, sy-vline,
  WA_P34_1721A2_PDF-TAX_PERIOD, sy-vline,
  WA_P34_1721A2_PDF-PERIOD_BEG, sy-vline,
  WA_P34_1721A2_PDF-PERIOD_END, sy-vline,
  WA_P34_1721A2_PDF-COMP_NAME, sy-vline,
  WA_P34_1721A2_PDF-TREA_NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P34_1721A2_PDF 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_P34_1721A2_PDF 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_P34_1721A2_PDF INTO WA_P34_1721A2_PDF.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P34_1721A2_PDF_STR, 
PERNR TYPE STRING,
TAXMO TYPE STRING,
TAX_CODE TYPE STRING,
NUM_NN TYPE STRING,
NUM_YY TYPE STRING,
SPECIAL_NUMBER TYPE STRING,
TAX_PERIOD TYPE STRING,
PERIOD_BEG TYPE STRING,
PERIOD_END TYPE STRING,
COMP_NAME TYPE STRING,
TREA_NAME TYPE STRING,
COMP_TAXID TYPE STRING,
COMP_TAXID1 TYPE STRING,
COMP_TAXID2 TYPE STRING,
COMP_TAXID3 TYPE STRING,
EMP_TAXID TYPE STRING,
EMP_TAXID1 TYPE STRING,
EMP_TAXID2 TYPE STRING,
EMP_TAXID3 TYPE STRING,
EMP_NIP_NRP TYPE STRING,
EMP_NAME TYPE STRING,
EMP_RANK TYPE STRING,
EMP_GROUP TYPE STRING,
EMP_ADDRESS TYPE STRING,
EMP_ADDRESS1 TYPE STRING,
MALE TYPE STRING,
FEMALE TYPE STRING,
EMP_NIK TYPE STRING,
MARRIED TYPE STRING,
UNMARRIED TYPE STRING,
DEPENDENTS TYPE STRING,
DEP_MARRIED TYPE STRING,
DEP_UNMARRIED TYPE STRING,
DEP_HB TYPE STRING,
EMP_POSITION TYPE STRING,
TAX_CODE_01 TYPE STRING,
TAX_CODE_02 TYPE STRING,
BASE_SALARY TYPE STRING,
WIFE_SUPPORT TYPE STRING,
CHILD_SUPPORT TYPE STRING,
TOTAL_SALARY_FAMILY TYPE STRING,
CORRECTION_ALLOWANCE TYPE STRING,
FUNCTIONAL_ALLOWANCE TYPE STRING,
RICE_ALLOWANCE TYPE STRING,
SPECIAL_ALLOWANCE TYPE STRING,
OTHER_ALLOWANCE TYPE STRING,
FIXED_INCOME TYPE STRING,
TOTAL_GROSS TYPE STRING,
POSITION_PENSION TYPE STRING,
PRE_TAX_DED TYPE STRING,
TOTAL_DED TYPE STRING,
TOTAL_NET TYPE STRING,
PREV_NET TYPE STRING,
ANNUAL_NET TYPE STRING,
PTKP_INC TYPE STRING,
INC_ANN TYPE STRING,
INC_TAX TYPE STRING,
PREV_TAX TYPE STRING,
TAX_OWED TYPE STRING,
TAX_PAID TYPE STRING,
TAX_PAID_A TYPE STRING,
TAX_PAID_B TYPE STRING,
EMP_MOVED TYPE STRING,
EMP_TRANSFER TYPE STRING,
EMP_NEW TYPE STRING,
EMP_RETIRED TYPE STRING,
SIGN_TAXID TYPE STRING,
SIGN_TAXID1 TYPE STRING,
SIGN_TAXID2 TYPE STRING,
SIGN_TAXID3 TYPE STRING,
SIGN_NAME TYPE STRING,
SIGN_NIP_NRP TYPE STRING,
GDATE TYPE STRING,
GDATE_DD TYPE STRING,
GDATE_MM TYPE STRING,
GDATE_YY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P34_1721A2_PDF_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_P34_1721A2_PDF_STR-PERNR sy-vline 
WA_P34_1721A2_PDF_STR-TAXMO sy-vline 
WA_P34_1721A2_PDF_STR-TAX_CODE sy-vline 
WA_P34_1721A2_PDF_STR-NUM_NN sy-vline 
WA_P34_1721A2_PDF_STR-NUM_YY sy-vline 
WA_P34_1721A2_PDF_STR-SPECIAL_NUMBER sy-vline 
WA_P34_1721A2_PDF_STR-TAX_PERIOD sy-vline 
WA_P34_1721A2_PDF_STR-PERIOD_BEG sy-vline 
WA_P34_1721A2_PDF_STR-PERIOD_END sy-vline 
WA_P34_1721A2_PDF_STR-COMP_NAME sy-vline 
WA_P34_1721A2_PDF_STR-TREA_NAME sy-vline 
WA_P34_1721A2_PDF_STR-COMP_TAXID sy-vline 
WA_P34_1721A2_PDF_STR-COMP_TAXID1 sy-vline 
WA_P34_1721A2_PDF_STR-COMP_TAXID2 sy-vline 
WA_P34_1721A2_PDF_STR-COMP_TAXID3 sy-vline 
WA_P34_1721A2_PDF_STR-EMP_TAXID sy-vline 
WA_P34_1721A2_PDF_STR-EMP_TAXID1 sy-vline 
WA_P34_1721A2_PDF_STR-EMP_TAXID2 sy-vline 
WA_P34_1721A2_PDF_STR-EMP_TAXID3 sy-vline 
WA_P34_1721A2_PDF_STR-EMP_NIP_NRP sy-vline 
WA_P34_1721A2_PDF_STR-EMP_NAME sy-vline 
WA_P34_1721A2_PDF_STR-EMP_RANK sy-vline 
WA_P34_1721A2_PDF_STR-EMP_GROUP sy-vline 
WA_P34_1721A2_PDF_STR-EMP_ADDRESS sy-vline 
WA_P34_1721A2_PDF_STR-EMP_ADDRESS1 sy-vline 
WA_P34_1721A2_PDF_STR-MALE sy-vline 
WA_P34_1721A2_PDF_STR-FEMALE sy-vline 
WA_P34_1721A2_PDF_STR-EMP_NIK sy-vline 
WA_P34_1721A2_PDF_STR-MARRIED sy-vline 
WA_P34_1721A2_PDF_STR-UNMARRIED sy-vline 
WA_P34_1721A2_PDF_STR-DEPENDENTS sy-vline 
WA_P34_1721A2_PDF_STR-DEP_MARRIED sy-vline 
WA_P34_1721A2_PDF_STR-DEP_UNMARRIED sy-vline 
WA_P34_1721A2_PDF_STR-DEP_HB sy-vline 
WA_P34_1721A2_PDF_STR-EMP_POSITION sy-vline 
WA_P34_1721A2_PDF_STR-TAX_CODE_01 sy-vline 
WA_P34_1721A2_PDF_STR-TAX_CODE_02 sy-vline 
WA_P34_1721A2_PDF_STR-BASE_SALARY sy-vline 
WA_P34_1721A2_PDF_STR-WIFE_SUPPORT sy-vline 
WA_P34_1721A2_PDF_STR-CHILD_SUPPORT sy-vline 
WA_P34_1721A2_PDF_STR-TOTAL_SALARY_FAMILY sy-vline 
WA_P34_1721A2_PDF_STR-CORRECTION_ALLOWANCE sy-vline 
WA_P34_1721A2_PDF_STR-FUNCTIONAL_ALLOWANCE sy-vline 
WA_P34_1721A2_PDF_STR-RICE_ALLOWANCE sy-vline 
WA_P34_1721A2_PDF_STR-SPECIAL_ALLOWANCE sy-vline 
WA_P34_1721A2_PDF_STR-OTHER_ALLOWANCE sy-vline 
WA_P34_1721A2_PDF_STR-FIXED_INCOME sy-vline 
WA_P34_1721A2_PDF_STR-TOTAL_GROSS sy-vline 
WA_P34_1721A2_PDF_STR-POSITION_PENSION sy-vline 
WA_P34_1721A2_PDF_STR-PRE_TAX_DED sy-vline 
WA_P34_1721A2_PDF_STR-TOTAL_DED sy-vline 
WA_P34_1721A2_PDF_STR-TOTAL_NET sy-vline 
WA_P34_1721A2_PDF_STR-PREV_NET sy-vline 
WA_P34_1721A2_PDF_STR-ANNUAL_NET sy-vline 
WA_P34_1721A2_PDF_STR-PTKP_INC sy-vline 
WA_P34_1721A2_PDF_STR-INC_ANN sy-vline 
WA_P34_1721A2_PDF_STR-INC_TAX sy-vline 
WA_P34_1721A2_PDF_STR-PREV_TAX sy-vline 
WA_P34_1721A2_PDF_STR-TAX_OWED sy-vline 
WA_P34_1721A2_PDF_STR-TAX_PAID sy-vline 
WA_P34_1721A2_PDF_STR-TAX_PAID_A sy-vline 
WA_P34_1721A2_PDF_STR-TAX_PAID_B sy-vline 
WA_P34_1721A2_PDF_STR-EMP_MOVED sy-vline 
WA_P34_1721A2_PDF_STR-EMP_TRANSFER sy-vline 
WA_P34_1721A2_PDF_STR-EMP_NEW sy-vline 
WA_P34_1721A2_PDF_STR-EMP_RETIRED sy-vline 
WA_P34_1721A2_PDF_STR-SIGN_TAXID sy-vline 
WA_P34_1721A2_PDF_STR-SIGN_TAXID1 sy-vline 
WA_P34_1721A2_PDF_STR-SIGN_TAXID2 sy-vline 
WA_P34_1721A2_PDF_STR-SIGN_TAXID3 sy-vline 
WA_P34_1721A2_PDF_STR-SIGN_NAME sy-vline 
WA_P34_1721A2_PDF_STR-SIGN_NIP_NRP sy-vline 
WA_P34_1721A2_PDF_STR-GDATE sy-vline 
WA_P34_1721A2_PDF_STR-GDATE_DD sy-vline 
WA_P34_1721A2_PDF_STR-GDATE_MM sy-vline 
WA_P34_1721A2_PDF_STR-GDATE_YY sy-vline      INTO ld_text SEPARATED BY SPACE.

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