ABAP Select data from SAP table P44_ATSLL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P44_ATSLL 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 P44_ATSLL. 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 P44_ATSLL 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_P44_ATSLL TYPE STANDARD TABLE OF P44_ATSLL,
      WA_P44_ATSLL TYPE P44_ATSLL,
      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: <P44_ATSLL> TYPE P44_ATSLL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P44_ATSLL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P44_ATSLL
  INTO TABLE IT_P44_ATSLL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P44_ATSLL
*  INTO TABLE @DATA(IT_P44_ATSLL2).
*--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_P44_ATSLL INDEX 1 INTO DATA(WA_P44_ATSLL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P44_ATSLL ASSIGNING <P44_ATSLL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P44_ATSLL>-ATSDC = 1.
<P44_ATSLL>-ATS0T = 1.
<P44_ATSLL>-TXRNO = 1.
<P44_ATSLL>-ATSYR = 1.
<P44_ATSLL>-EVENT = 1.

ENDLOOP.

LOOP AT IT_P44_ATSLL INTO WA_P44_ATSLL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P44_ATSLL-TCURR, sy-vline,
  WA_P44_ATSLL-PAYID, sy-vline,
  WA_P44_ATSLL-PERID, sy-vline,
  WA_P44_ATSLL-LNAME, sy-vline,
  WA_P44_ATSLL-FNAME, sy-vline,
  WA_P44_ATSLL-ADDRE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P44_ATSLL 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_P44_ATSLL 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_P44_ATSLL INTO WA_P44_ATSLL.


*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_P44_ATSLL_STR, 
ATSDC TYPE STRING,
ATS0T TYPE STRING,
TXRNO TYPE STRING,
ATSYR TYPE STRING,
EVENT TYPE STRING,
TCURR TYPE STRING,
PAYID TYPE STRING,
PERID TYPE STRING,
LNAME TYPE STRING,
FNAME TYPE STRING,
ADDRE TYPE STRING,
POSTC TYPE STRING,
CITYR TYPE STRING,
PIDHC TYPE STRING,
CCDHC TYPE STRING,
NAMHC TYPE STRING,
CCDCE TYPE STRING,
NAMCE TYPE STRING,
GROSS TYPE STRING,
TAXWH TYPE STRING,
SALAR TYPE STRING,
BENFR TYPE STRING,
EXEMP TYPE STRING,
OTHER TYPE STRING,
EXEUP TYPE STRING,
WHSSC TYPE STRING,
ACTNR TYPE STRING,
PENBE TYPE STRING,
WRKDY TYPE STRING,
IDAMC TYPE STRING,
BICCD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P44_ATSLL_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_P44_ATSLL_STR-ATSDC sy-vline 
WA_P44_ATSLL_STR-ATS0T sy-vline 
WA_P44_ATSLL_STR-TXRNO sy-vline 
WA_P44_ATSLL_STR-ATSYR sy-vline 
WA_P44_ATSLL_STR-EVENT sy-vline 
WA_P44_ATSLL_STR-TCURR sy-vline 
WA_P44_ATSLL_STR-PAYID sy-vline 
WA_P44_ATSLL_STR-PERID sy-vline 
WA_P44_ATSLL_STR-LNAME sy-vline 
WA_P44_ATSLL_STR-FNAME sy-vline 
WA_P44_ATSLL_STR-ADDRE sy-vline 
WA_P44_ATSLL_STR-POSTC sy-vline 
WA_P44_ATSLL_STR-CITYR sy-vline 
WA_P44_ATSLL_STR-PIDHC sy-vline 
WA_P44_ATSLL_STR-CCDHC sy-vline 
WA_P44_ATSLL_STR-NAMHC sy-vline 
WA_P44_ATSLL_STR-CCDCE sy-vline 
WA_P44_ATSLL_STR-NAMCE sy-vline 
WA_P44_ATSLL_STR-GROSS sy-vline 
WA_P44_ATSLL_STR-TAXWH sy-vline 
WA_P44_ATSLL_STR-SALAR sy-vline 
WA_P44_ATSLL_STR-BENFR sy-vline 
WA_P44_ATSLL_STR-EXEMP sy-vline 
WA_P44_ATSLL_STR-OTHER sy-vline 
WA_P44_ATSLL_STR-EXEUP sy-vline 
WA_P44_ATSLL_STR-WHSSC sy-vline 
WA_P44_ATSLL_STR-ACTNR sy-vline 
WA_P44_ATSLL_STR-PENBE sy-vline 
WA_P44_ATSLL_STR-WRKDY sy-vline 
WA_P44_ATSLL_STR-IDAMC sy-vline 
WA_P44_ATSLL_STR-BICCD sy-vline      INTO ld_text SEPARATED BY SPACE.

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