ABAP Select data from SAP table PUAP1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PUAP1 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 PUAP1. 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 PUAP1 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_PUAP1 TYPE STANDARD TABLE OF PUAP1,
      WA_PUAP1 TYPE PUAP1,
      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: <PUAP1> TYPE PUAP1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PUAP1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PUAP1
  INTO TABLE IT_PUAP1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PUAP1
*  INTO TABLE @DATA(IT_PUAP12).
*--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_PUAP1 INDEX 1 INTO DATA(WA_PUAP12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PUAP1 ASSIGNING <PUAP1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PUAP1>-PERNR = 1.
<PUAP1>-BEGDA = 1.
<PUAP1>-ENDDA = 1.
<PUAP1>-GESCH = 1.
<PUAP1>-NBTGK = 1.

ENDLOOP.

LOOP AT IT_PUAP1 INTO WA_PUAP1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PUAP1-WTTKL, sy-vline,
  WA_PUAP1-LFZFR, sy-vline,
  WA_PUAP1-LFZZH, sy-vline,
  WA_PUAP1-LFZSO, sy-vline,
  WA_PUAP1-KGZFR, sy-vline,
  WA_PUAP1-KGZZH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PUAP1 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_PUAP1 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_PUAP1 INTO WA_PUAP1.


*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 ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PUAP1-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PUAP1-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PUAP1-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PUAP1-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SGMNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PUAP1-SGMNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PUAP1-SGMNT.
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_PUAP1_STR, 
PERNR TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
GESCH TYPE STRING,
NBTGK TYPE STRING,
WTTKL TYPE STRING,
LFZFR TYPE STRING,
LFZZH TYPE STRING,
LFZSO TYPE STRING,
KGZFR TYPE STRING,
KGZZH TYPE STRING,
PRBZT TYPE STRING,
PRBEH TYPE STRING,
KDGFR TYPE STRING,
KDGF2 TYPE STRING,
ARBER TYPE STRING,
EINDT TYPE STRING,
KONDT TYPE STRING,
KONSL TYPE STRING,
CTTYP TYPE STRING,
CTEDT TYPE STRING,
WRKPL TYPE STRING,
CTBEG TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
VDSK1 TYPE STRING,
GSBER TYPE STRING,
BTRTL TYPE STRING,
JUPER TYPE STRING,
ABKRS TYPE STRING,
ANSVH TYPE STRING,
KOSTL TYPE STRING,
ORGEH TYPE STRING,
PLANS TYPE STRING,
STELL TYPE STRING,
MSTBR TYPE STRING,
SACHA TYPE STRING,
SACHP TYPE STRING,
SACHZ TYPE STRING,
SNAME TYPE STRING,
ENAME TYPE STRING,
OTYPE TYPE STRING,
SBMOD TYPE STRING,
KOKRS TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
FKBER TYPE STRING,
GRANT_NBR TYPE STRING,
SGMNT TYPE STRING,
BUDGET_PD TYPE STRING,
SBGRU TYPE STRING,
SBPRO TYPE STRING,
SBART TYPE STRING,
SBFAK TYPE STRING,
SBDST TYPE STRING,
SBGSZ TYPE STRING,
SBADT TYPE STRING,
SBDS2 TYPE STRING,
SBGS2 TYPE STRING,
SBAD2 TYPE STRING,
SBAUD TYPE STRING,
SBPRF TYPE STRING,
WEGDT TYPE STRING,
DNSTL TYPE STRING,
DSITZ TYPE STRING,
NACHW TYPE STRING,
SCHKZ TYPE STRING,
ZTERF TYPE STRING,
EMPCT TYPE STRING,
MOSTD TYPE STRING,
WOSTD TYPE STRING,
ARBST TYPE STRING,
WKWDY TYPE STRING,
JRSTD TYPE STRING,
TEILK TYPE STRING,
MINTA TYPE STRING,
MAXTA TYPE STRING,
MINWO TYPE STRING,
MAXWO TYPE STRING,
MINMO TYPE STRING,
MAXMO TYPE STRING,
MINJA TYPE STRING,
MAXJA TYPE STRING,
DYSCH TYPE STRING,
KZTIM TYPE STRING,
WWEEK TYPE STRING,
AWTYP TYPE STRING,
MASSN TYPE STRING,
MASSG TYPE STRING,
MASSS TYPE STRING,
ORDNU TYPE STRING,
ORDDT TYPE STRING,
LOCAT TYPE STRING,
REMAR TYPE STRING,
GRPOR TYPE STRING,
ORDST TYPE STRING,
ACQDT TYPE STRING,
CHPER TYPE STRING,
DOCID TYPE STRING,
LGTXT TYPE STRING,
REINR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PUAP1_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_PUAP1_STR-PERNR sy-vline 
WA_PUAP1_STR-BEGDA sy-vline 
WA_PUAP1_STR-ENDDA sy-vline 
WA_PUAP1_STR-GESCH sy-vline 
WA_PUAP1_STR-NBTGK sy-vline 
WA_PUAP1_STR-WTTKL sy-vline 
WA_PUAP1_STR-LFZFR sy-vline 
WA_PUAP1_STR-LFZZH sy-vline 
WA_PUAP1_STR-LFZSO sy-vline 
WA_PUAP1_STR-KGZFR sy-vline 
WA_PUAP1_STR-KGZZH sy-vline 
WA_PUAP1_STR-PRBZT sy-vline 
WA_PUAP1_STR-PRBEH sy-vline 
WA_PUAP1_STR-KDGFR sy-vline 
WA_PUAP1_STR-KDGF2 sy-vline 
WA_PUAP1_STR-ARBER sy-vline 
WA_PUAP1_STR-EINDT sy-vline 
WA_PUAP1_STR-KONDT sy-vline 
WA_PUAP1_STR-KONSL sy-vline 
WA_PUAP1_STR-CTTYP sy-vline 
WA_PUAP1_STR-CTEDT sy-vline 
WA_PUAP1_STR-WRKPL sy-vline 
WA_PUAP1_STR-CTBEG sy-vline 
WA_PUAP1_STR-BUKRS sy-vline 
WA_PUAP1_STR-WERKS sy-vline 
WA_PUAP1_STR-PERSG sy-vline 
WA_PUAP1_STR-PERSK sy-vline 
WA_PUAP1_STR-VDSK1 sy-vline 
WA_PUAP1_STR-GSBER sy-vline 
WA_PUAP1_STR-BTRTL sy-vline 
WA_PUAP1_STR-JUPER sy-vline 
WA_PUAP1_STR-ABKRS sy-vline 
WA_PUAP1_STR-ANSVH sy-vline 
WA_PUAP1_STR-KOSTL sy-vline 
WA_PUAP1_STR-ORGEH sy-vline 
WA_PUAP1_STR-PLANS sy-vline 
WA_PUAP1_STR-STELL sy-vline 
WA_PUAP1_STR-MSTBR sy-vline 
WA_PUAP1_STR-SACHA sy-vline 
WA_PUAP1_STR-SACHP sy-vline 
WA_PUAP1_STR-SACHZ sy-vline 
WA_PUAP1_STR-SNAME sy-vline 
WA_PUAP1_STR-ENAME sy-vline 
WA_PUAP1_STR-OTYPE sy-vline 
WA_PUAP1_STR-SBMOD sy-vline 
WA_PUAP1_STR-KOKRS sy-vline 
WA_PUAP1_STR-FISTL sy-vline 
WA_PUAP1_STR-GEBER sy-vline 
WA_PUAP1_STR-FKBER sy-vline 
WA_PUAP1_STR-GRANT_NBR sy-vline 
WA_PUAP1_STR-SGMNT sy-vline 
WA_PUAP1_STR-BUDGET_PD sy-vline 
WA_PUAP1_STR-SBGRU sy-vline 
WA_PUAP1_STR-SBPRO sy-vline 
WA_PUAP1_STR-SBART sy-vline 
WA_PUAP1_STR-SBFAK sy-vline 
WA_PUAP1_STR-SBDST sy-vline 
WA_PUAP1_STR-SBGSZ sy-vline 
WA_PUAP1_STR-SBADT sy-vline 
WA_PUAP1_STR-SBDS2 sy-vline 
WA_PUAP1_STR-SBGS2 sy-vline 
WA_PUAP1_STR-SBAD2 sy-vline 
WA_PUAP1_STR-SBAUD sy-vline 
WA_PUAP1_STR-SBPRF sy-vline 
WA_PUAP1_STR-WEGDT sy-vline 
WA_PUAP1_STR-DNSTL sy-vline 
WA_PUAP1_STR-DSITZ sy-vline 
WA_PUAP1_STR-NACHW sy-vline 
WA_PUAP1_STR-SCHKZ sy-vline 
WA_PUAP1_STR-ZTERF sy-vline 
WA_PUAP1_STR-EMPCT sy-vline 
WA_PUAP1_STR-MOSTD sy-vline 
WA_PUAP1_STR-WOSTD sy-vline 
WA_PUAP1_STR-ARBST sy-vline 
WA_PUAP1_STR-WKWDY sy-vline 
WA_PUAP1_STR-JRSTD sy-vline 
WA_PUAP1_STR-TEILK sy-vline 
WA_PUAP1_STR-MINTA sy-vline 
WA_PUAP1_STR-MAXTA sy-vline 
WA_PUAP1_STR-MINWO sy-vline 
WA_PUAP1_STR-MAXWO sy-vline 
WA_PUAP1_STR-MINMO sy-vline 
WA_PUAP1_STR-MAXMO sy-vline 
WA_PUAP1_STR-MINJA sy-vline 
WA_PUAP1_STR-MAXJA sy-vline 
WA_PUAP1_STR-DYSCH sy-vline 
WA_PUAP1_STR-KZTIM sy-vline 
WA_PUAP1_STR-WWEEK sy-vline 
WA_PUAP1_STR-AWTYP sy-vline 
WA_PUAP1_STR-MASSN sy-vline 
WA_PUAP1_STR-MASSG sy-vline 
WA_PUAP1_STR-MASSS sy-vline 
WA_PUAP1_STR-ORDNU sy-vline 
WA_PUAP1_STR-ORDDT sy-vline 
WA_PUAP1_STR-LOCAT sy-vline 
WA_PUAP1_STR-REMAR sy-vline 
WA_PUAP1_STR-GRPOR sy-vline 
WA_PUAP1_STR-ORDST sy-vline 
WA_PUAP1_STR-ACQDT sy-vline 
WA_PUAP1_STR-CHPER sy-vline 
WA_PUAP1_STR-DOCID sy-vline 
WA_PUAP1_STR-LGTXT sy-vline 
WA_PUAP1_STR-REINR sy-vline      INTO ld_text SEPARATED BY SPACE.

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