ABAP Select data from SAP table PA0998 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PA0998 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 PA0998. 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 PA0998 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_PA0998 TYPE STANDARD TABLE OF PA0998,
      WA_PA0998 TYPE PA0998,
      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: <PA0998> TYPE PA0998.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PA0998.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PA0998
  INTO TABLE IT_PA0998.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PA0998
*  INTO TABLE @DATA(IT_PA09982).
*--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_PA0998 INDEX 1 INTO DATA(WA_PA09982).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PA0998 ASSIGNING <PA0998>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PA0998>-MANDT = 1.
<PA0998>-PERNR = 1.
<PA0998>-SUBTY = 1.
<PA0998>-OBJPS = 1.
<PA0998>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_PA0998 INTO WA_PA0998.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PA0998-ENDDA, sy-vline,
  WA_PA0998-BEGDA, sy-vline,
  WA_PA0998-SEQNR, sy-vline,
  WA_PA0998-AEDTM, sy-vline,
  WA_PA0998-UNAME, sy-vline,
  WA_PA0998-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PA0998 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_PA0998 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_PA0998 INTO WA_PA0998.


*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_PA0998_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
NATIS TYPE STRING,
NATIC TYPE STRING,
DTP01 TYPE STRING,
DDT01 TYPE STRING,
DLE01 TYPE STRING,
DTP02 TYPE STRING,
DDT02 TYPE STRING,
DLE02 TYPE STRING,
DTP03 TYPE STRING,
DDT03 TYPE STRING,
DLE03 TYPE STRING,
DTP04 TYPE STRING,
DDT04 TYPE STRING,
DLE04 TYPE STRING,
DTP05 TYPE STRING,
DDT05 TYPE STRING,
DLE05 TYPE STRING,
DTP06 TYPE STRING,
DDT06 TYPE STRING,
DLE06 TYPE STRING,
DTP07 TYPE STRING,
DDT07 TYPE STRING,
DLE07 TYPE STRING,
DTP08 TYPE STRING,
DDT08 TYPE STRING,
DLE08 TYPE STRING,
DTP09 TYPE STRING,
DDT09 TYPE STRING,
DLE09 TYPE STRING,
DTP10 TYPE STRING,
DDT10 TYPE STRING,
DLE10 TYPE STRING,
DTP11 TYPE STRING,
DDT11 TYPE STRING,
DLE11 TYPE STRING,
DTP12 TYPE STRING,
DDT12 TYPE STRING,
DLE12 TYPE STRING,
DTP13 TYPE STRING,
DDT13 TYPE STRING,
DLE13 TYPE STRING,
DTP14 TYPE STRING,
DDT14 TYPE STRING,
DLE14 TYPE STRING,
DTP15 TYPE STRING,
DDT15 TYPE STRING,
DLE15 TYPE STRING,
DTP16 TYPE STRING,
DDT16 TYPE STRING,
DLE16 TYPE STRING,
DTP17 TYPE STRING,
DDT17 TYPE STRING,
DLE17 TYPE STRING,
DTP18 TYPE STRING,
DDT18 TYPE STRING,
DLE18 TYPE STRING,
DTP19 TYPE STRING,
DDT19 TYPE STRING,
DLE19 TYPE STRING,
DTP20 TYPE STRING,
DDT20 TYPE STRING,
DLE20 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PA0998_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_PA0998_STR-MANDT sy-vline 
WA_PA0998_STR-PERNR sy-vline 
WA_PA0998_STR-SUBTY sy-vline 
WA_PA0998_STR-OBJPS sy-vline 
WA_PA0998_STR-SPRPS sy-vline 
WA_PA0998_STR-ENDDA sy-vline 
WA_PA0998_STR-BEGDA sy-vline 
WA_PA0998_STR-SEQNR sy-vline 
WA_PA0998_STR-AEDTM sy-vline 
WA_PA0998_STR-UNAME sy-vline 
WA_PA0998_STR-HISTO sy-vline 
WA_PA0998_STR-ITXEX sy-vline 
WA_PA0998_STR-REFEX sy-vline 
WA_PA0998_STR-ORDEX sy-vline 
WA_PA0998_STR-ITBLD sy-vline 
WA_PA0998_STR-PREAS sy-vline 
WA_PA0998_STR-FLAG1 sy-vline 
WA_PA0998_STR-FLAG2 sy-vline 
WA_PA0998_STR-FLAG3 sy-vline 
WA_PA0998_STR-FLAG4 sy-vline 
WA_PA0998_STR-RESE1 sy-vline 
WA_PA0998_STR-RESE2 sy-vline 
WA_PA0998_STR-GRPVL sy-vline 
WA_PA0998_STR-NATIS sy-vline 
WA_PA0998_STR-NATIC sy-vline 
WA_PA0998_STR-DTP01 sy-vline 
WA_PA0998_STR-DDT01 sy-vline 
WA_PA0998_STR-DLE01 sy-vline 
WA_PA0998_STR-DTP02 sy-vline 
WA_PA0998_STR-DDT02 sy-vline 
WA_PA0998_STR-DLE02 sy-vline 
WA_PA0998_STR-DTP03 sy-vline 
WA_PA0998_STR-DDT03 sy-vline 
WA_PA0998_STR-DLE03 sy-vline 
WA_PA0998_STR-DTP04 sy-vline 
WA_PA0998_STR-DDT04 sy-vline 
WA_PA0998_STR-DLE04 sy-vline 
WA_PA0998_STR-DTP05 sy-vline 
WA_PA0998_STR-DDT05 sy-vline 
WA_PA0998_STR-DLE05 sy-vline 
WA_PA0998_STR-DTP06 sy-vline 
WA_PA0998_STR-DDT06 sy-vline 
WA_PA0998_STR-DLE06 sy-vline 
WA_PA0998_STR-DTP07 sy-vline 
WA_PA0998_STR-DDT07 sy-vline 
WA_PA0998_STR-DLE07 sy-vline 
WA_PA0998_STR-DTP08 sy-vline 
WA_PA0998_STR-DDT08 sy-vline 
WA_PA0998_STR-DLE08 sy-vline 
WA_PA0998_STR-DTP09 sy-vline 
WA_PA0998_STR-DDT09 sy-vline 
WA_PA0998_STR-DLE09 sy-vline 
WA_PA0998_STR-DTP10 sy-vline 
WA_PA0998_STR-DDT10 sy-vline 
WA_PA0998_STR-DLE10 sy-vline 
WA_PA0998_STR-DTP11 sy-vline 
WA_PA0998_STR-DDT11 sy-vline 
WA_PA0998_STR-DLE11 sy-vline 
WA_PA0998_STR-DTP12 sy-vline 
WA_PA0998_STR-DDT12 sy-vline 
WA_PA0998_STR-DLE12 sy-vline 
WA_PA0998_STR-DTP13 sy-vline 
WA_PA0998_STR-DDT13 sy-vline 
WA_PA0998_STR-DLE13 sy-vline 
WA_PA0998_STR-DTP14 sy-vline 
WA_PA0998_STR-DDT14 sy-vline 
WA_PA0998_STR-DLE14 sy-vline 
WA_PA0998_STR-DTP15 sy-vline 
WA_PA0998_STR-DDT15 sy-vline 
WA_PA0998_STR-DLE15 sy-vline 
WA_PA0998_STR-DTP16 sy-vline 
WA_PA0998_STR-DDT16 sy-vline 
WA_PA0998_STR-DLE16 sy-vline 
WA_PA0998_STR-DTP17 sy-vline 
WA_PA0998_STR-DDT17 sy-vline 
WA_PA0998_STR-DLE17 sy-vline 
WA_PA0998_STR-DTP18 sy-vline 
WA_PA0998_STR-DDT18 sy-vline 
WA_PA0998_STR-DLE18 sy-vline 
WA_PA0998_STR-DTP19 sy-vline 
WA_PA0998_STR-DDT19 sy-vline 
WA_PA0998_STR-DLE19 sy-vline 
WA_PA0998_STR-DTP20 sy-vline 
WA_PA0998_STR-DDT20 sy-vline 
WA_PA0998_STR-DLE20 sy-vline      INTO ld_text SEPARATED BY SPACE.

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