ABAP Select data from SAP table PAR38 into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PAR38 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 PAR38. 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 PAR38 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_PAR38 TYPE STANDARD TABLE OF PAR38,
      WA_PAR38 TYPE PAR38,
      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: <PAR38> TYPE PAR38.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PAR38.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PAR38
  INTO TABLE IT_PAR38.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAR38
*  INTO TABLE @DATA(IT_PAR382).
*--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_PAR38 INDEX 1 INTO DATA(WA_PAR382).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PAR38 ASSIGNING <PAR38>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAR38>-TOTAL = 1.
<PAR38>-BUKRS = 1.
<PAR38>-BUTXT = 1.
<PAR38>-REGIS = 1.
<PAR38>-PERNR = 1.

ENDLOOP.

LOOP AT IT_PAR38 INTO WA_PAR38.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAR38-RETOT, sy-vline,
  WA_PAR38-AMT_CURR_TOT, sy-vline,
  WA_PAR38-REAOS, sy-vline,
  WA_PAR38-AMT_CURR_REA, sy-vline,
  WA_PAR38-REICO, sy-vline,
  WA_PAR38-AMT_CURR_REI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAR38 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_PAR38 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_PAR38 INTO WA_PAR38.


*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_PAR38_STR, 
TOTAL TYPE STRING,
BUKRS TYPE STRING,
BUTXT TYPE STRING,
REGIS TYPE STRING,
PERNR TYPE STRING,
RETOT TYPE STRING,
AMT_CURR_TOT TYPE STRING,
REAOS TYPE STRING,
AMT_CURR_REA TYPE STRING,
REICO TYPE STRING,
AMT_CURR_REI TYPE STRING,
REIM3 TYPE STRING,
AMT_CURR_RE3 TYPE STRING,
REIOS TYPE STRING,
AMT_CURR_REO 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,
IADOS TYPE STRING,
AMT_CURR_IAD TYPE STRING,
EXASS TYPE STRING,
AMT_CURR_EXA TYPE STRING,
EXAOS TYPE STRING,
AMT_CURR_EXO TYPE STRING,
TIKET TYPE STRING,
AMT_CURR_TIK TYPE STRING,
CAPRE TYPE STRING,
AMT_CURR_CAP TYPE STRING,
CCUIL TYPE STRING,
NOMAP TYPE STRING,
CONTF TYPE STRING,
HIJOS TYPE STRING,
SITUA TYPE STRING,
CONDI TYPE STRING,
ACTSI TYPE STRING,
ZONDI TYPE STRING,
AADSS TYPE STRING,
TCSIJ TYPE STRING,
OBRAS TYPE STRING,
ADHER TYPE STRING,
LOCTX TYPE STRING,
SINSI TYPE STRING,
CORSI TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
TIPEM TYPE STRING,
APAOS TYPE STRING,
AMT_CURR_APS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAR38_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_PAR38_STR-TOTAL sy-vline 
WA_PAR38_STR-BUKRS sy-vline 
WA_PAR38_STR-BUTXT sy-vline 
WA_PAR38_STR-REGIS sy-vline 
WA_PAR38_STR-PERNR sy-vline 
WA_PAR38_STR-RETOT sy-vline 
WA_PAR38_STR-AMT_CURR_TOT sy-vline 
WA_PAR38_STR-REAOS sy-vline 
WA_PAR38_STR-AMT_CURR_REA sy-vline 
WA_PAR38_STR-REICO sy-vline 
WA_PAR38_STR-AMT_CURR_REI sy-vline 
WA_PAR38_STR-REIM3 sy-vline 
WA_PAR38_STR-AMT_CURR_RE3 sy-vline 
WA_PAR38_STR-REIOS sy-vline 
WA_PAR38_STR-AMT_CURR_REO sy-vline 
WA_PAR38_STR-APJVO sy-vline 
WA_PAR38_STR-BETPE_JVO sy-vline 
WA_PAR38_STR-RTE_CURR_JVO sy-vline 
WA_PAR38_STR-AMT_CURR_JVO sy-vline 
WA_PAR38_STR-ASFAM sy-vline 
WA_PAR38_STR-BETPE_ASF sy-vline 
WA_PAR38_STR-RTE_CURR_ASF sy-vline 
WA_PAR38_STR-AMT_CURR_ASF sy-vline 
WA_PAR38_STR-IADOS sy-vline 
WA_PAR38_STR-AMT_CURR_IAD sy-vline 
WA_PAR38_STR-EXASS sy-vline 
WA_PAR38_STR-AMT_CURR_EXA sy-vline 
WA_PAR38_STR-EXAOS sy-vline 
WA_PAR38_STR-AMT_CURR_EXO sy-vline 
WA_PAR38_STR-TIKET sy-vline 
WA_PAR38_STR-AMT_CURR_TIK sy-vline 
WA_PAR38_STR-CAPRE sy-vline 
WA_PAR38_STR-AMT_CURR_CAP sy-vline 
WA_PAR38_STR-CCUIL sy-vline 
WA_PAR38_STR-NOMAP sy-vline 
WA_PAR38_STR-CONTF sy-vline 
WA_PAR38_STR-HIJOS sy-vline 
WA_PAR38_STR-SITUA sy-vline 
WA_PAR38_STR-CONDI sy-vline 
WA_PAR38_STR-ACTSI sy-vline 
WA_PAR38_STR-ZONDI sy-vline 
WA_PAR38_STR-AADSS sy-vline 
WA_PAR38_STR-TCSIJ sy-vline 
WA_PAR38_STR-OBRAS sy-vline 
WA_PAR38_STR-ADHER sy-vline 
WA_PAR38_STR-LOCTX sy-vline 
WA_PAR38_STR-SINSI sy-vline 
WA_PAR38_STR-CORSI sy-vline 
WA_PAR38_STR-BEGDA sy-vline 
WA_PAR38_STR-ENDDA sy-vline 
WA_PAR38_STR-TIPEM sy-vline 
WA_PAR38_STR-APAOS sy-vline 
WA_PAR38_STR-AMT_CURR_APS sy-vline      INTO ld_text SEPARATED BY SPACE.

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