ABAP Select data from SAP table PAR19 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PAR19 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 PAR19. 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 PAR19 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_PAR19 TYPE STANDARD TABLE OF PAR19,
      WA_PAR19 TYPE PAR19,
      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: <PAR19> TYPE PAR19.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PAR19.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PAR19
  INTO TABLE IT_PAR19.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAR19
*  INTO TABLE @DATA(IT_PAR192).
*--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_PAR19 INDEX 1 INTO DATA(WA_PAR192).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PAR19 ASSIGNING <PAR19>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAR19>-TOTAL = 1.
<PAR19>-BUKRS = 1.
<PAR19>-BUTXT = 1.
<PAR19>-REGIS = 1.
<PAR19>-PERNR = 1.

ENDLOOP.

LOOP AT IT_PAR19 INTO WA_PAR19.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAR19-RETOT, sy-vline,
  WA_PAR19-AMT_CURR_TOT, sy-vline,
  WA_PAR19-REISS, sy-vline,
  WA_PAR19-AMT_CURR_ISS, sy-vline,
  WA_PAR19-APJVO, sy-vline,
  WA_PAR19-BETPE_JVO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAR19 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_PAR19 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_PAR19 INTO WA_PAR19.


*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_PAR19_STR, 
TOTAL TYPE STRING,
BUKRS TYPE STRING,
BUTXT TYPE STRING,
REGIS TYPE STRING,
PERNR TYPE STRING,
RETOT TYPE STRING,
AMT_CURR_TOT TYPE STRING,
REISS TYPE STRING,
AMT_CURR_ISS TYPE STRING,
APJVO TYPE STRING,
BETPE_JVO TYPE STRING,
RTE_CURR_JVO TYPE STRING,
AMT_CURR_JVO TYPE STRING,
ASFAM TYPE STRING,
BETPE_ASF TYPE STRING,
RTE_CURR_ASF TYPE STRING,
AMT_CURR_ASF TYPE STRING,
REIOS TYPE STRING,
AMT_CURR_IOS TYPE STRING,
APAOS TYPE STRING,
BETPE_AOS TYPE STRING,
AMT_CURR_AOS TYPE STRING,
RTE_CURR_AOS TYPE STRING,
ZONDE TYPE STRING,
BETPE_ZON TYPE STRING,
AMT_CURR_ZON TYPE STRING,
RTE_CURR_ZON TYPE STRING,
REMPP TYPE STRING,
AMT_CURR_RPP TYPE STRING,
ASFPP TYPE STRING,
AMT_CURR_APP TYPE STRING,
CCUIL TYPE STRING,
OBRAS TYPE STRING,
CONYU TYPE STRING,
HIJOS TYPE STRING,
ADHER TYPE STRING,
ACTIV TYPE STRING,
PROMO TYPE STRING,
ZONDI TYPE STRING,
DISCO TYPE STRING,
AFZON TYPE STRING,
HIJOD TYPE STRING,
PRENA TYPE STRING,
CANAE TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAR19_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_PAR19_STR-TOTAL sy-vline 
WA_PAR19_STR-BUKRS sy-vline 
WA_PAR19_STR-BUTXT sy-vline 
WA_PAR19_STR-REGIS sy-vline 
WA_PAR19_STR-PERNR sy-vline 
WA_PAR19_STR-RETOT sy-vline 
WA_PAR19_STR-AMT_CURR_TOT sy-vline 
WA_PAR19_STR-REISS sy-vline 
WA_PAR19_STR-AMT_CURR_ISS sy-vline 
WA_PAR19_STR-APJVO sy-vline 
WA_PAR19_STR-BETPE_JVO sy-vline 
WA_PAR19_STR-RTE_CURR_JVO sy-vline 
WA_PAR19_STR-AMT_CURR_JVO sy-vline 
WA_PAR19_STR-ASFAM sy-vline 
WA_PAR19_STR-BETPE_ASF sy-vline 
WA_PAR19_STR-RTE_CURR_ASF sy-vline 
WA_PAR19_STR-AMT_CURR_ASF sy-vline 
WA_PAR19_STR-REIOS sy-vline 
WA_PAR19_STR-AMT_CURR_IOS sy-vline 
WA_PAR19_STR-APAOS sy-vline 
WA_PAR19_STR-BETPE_AOS sy-vline 
WA_PAR19_STR-AMT_CURR_AOS sy-vline 
WA_PAR19_STR-RTE_CURR_AOS sy-vline 
WA_PAR19_STR-ZONDE sy-vline 
WA_PAR19_STR-BETPE_ZON sy-vline 
WA_PAR19_STR-AMT_CURR_ZON sy-vline 
WA_PAR19_STR-RTE_CURR_ZON sy-vline 
WA_PAR19_STR-REMPP sy-vline 
WA_PAR19_STR-AMT_CURR_RPP sy-vline 
WA_PAR19_STR-ASFPP sy-vline 
WA_PAR19_STR-AMT_CURR_APP sy-vline 
WA_PAR19_STR-CCUIL sy-vline 
WA_PAR19_STR-OBRAS sy-vline 
WA_PAR19_STR-CONYU sy-vline 
WA_PAR19_STR-HIJOS sy-vline 
WA_PAR19_STR-ADHER sy-vline 
WA_PAR19_STR-ACTIV sy-vline 
WA_PAR19_STR-PROMO sy-vline 
WA_PAR19_STR-ZONDI sy-vline 
WA_PAR19_STR-DISCO sy-vline 
WA_PAR19_STR-AFZON sy-vline 
WA_PAR19_STR-HIJOD sy-vline 
WA_PAR19_STR-PRENA sy-vline 
WA_PAR19_STR-CANAE sy-vline 
WA_PAR19_STR-BEGDA sy-vline 
WA_PAR19_STR-ENDDA sy-vline      INTO ld_text SEPARATED BY SPACE.

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