ABAP Select data from SAP table P05T_JLO_OVERVIEW_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P05T_JLO_OVERVIEW_ALV 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 P05T_JLO_OVERVIEW_ALV. 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 P05T_JLO_OVERVIEW_ALV 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_P05T_JLO_OVERVIEW_ALV TYPE STANDARD TABLE OF P05T_JLO_OVERVIEW_ALV,
      WA_P05T_JLO_OVERVIEW_ALV TYPE P05T_JLO_OVERVIEW_ALV,
      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: <P05T_JLO_OVERVIEW_ALV> TYPE P05T_JLO_OVERVIEW_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P05T_JLO_OVERVIEW_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P05T_JLO_OVERVIEW_ALV
  INTO TABLE IT_P05T_JLO_OVERVIEW_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P05T_JLO_OVERVIEW_ALV
*  INTO TABLE @DATA(IT_P05T_JLO_OVERVIEW_ALV2).
*--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_P05T_JLO_OVERVIEW_ALV INDEX 1 INTO DATA(WA_P05T_JLO_OVERVIEW_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P05T_JLO_OVERVIEW_ALV ASSIGNING <P05T_JLO_OVERVIEW_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P05T_JLO_OVERVIEW_ALV>-LHNR = 1.
<P05T_JLO_OVERVIEW_ALV>-JAAR = 1.
<P05T_JLO_OVERVIEW_ALV>-DATAANVTV = 1.
<P05T_JLO_OVERVIEW_ALV>-DATEINDTV = 1.
<P05T_JLO_OVERVIEW_ALV>-SEQNO = 1.

ENDLOOP.

LOOP AT IT_P05T_JLO_OVERVIEW_ALV INTO WA_P05T_JLO_OVERVIEW_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P05T_JLO_OVERVIEW_ALV-AANTIV, sy-vline,
  WA_P05T_JLO_OVERVIEW_ALV-LNLBPH, sy-vline,
  WA_P05T_JLO_OVERVIEW_ALV-LNSV, sy-vline,
  WA_P05T_JLO_OVERVIEW_ALV-LNTABBB, sy-vline,
  WA_P05T_JLO_OVERVIEW_ALV-INGLBPH, sy-vline,
  WA_P05T_JLO_OVERVIEW_ALV-PRWAOAOF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P05T_JLO_OVERVIEW_ALV 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_P05T_JLO_OVERVIEW_ALV 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_P05T_JLO_OVERVIEW_ALV INTO WA_P05T_JLO_OVERVIEW_ALV.


*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 GJAHR, internal->external for field JAAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_P05T_JLO_OVERVIEW_ALV-JAAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P05T_JLO_OVERVIEW_ALV-JAAR.
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_P05T_JLO_OVERVIEW_ALV_STR, 
LHNR TYPE STRING,
JAAR TYPE STRING,
DATAANVTV TYPE STRING,
DATEINDTV TYPE STRING,
SEQNO TYPE STRING,
AANTIV TYPE STRING,
LNLBPH TYPE STRING,
LNSV TYPE STRING,
LNTABBB TYPE STRING,
INGLBPH TYPE STRING,
PRWAOAOF TYPE STRING,
PRWAOAOK TYPE STRING,
PRAWF TYPE STRING,
PRWGF TYPE STRING,
PRUFO TYPE STRING,
BIJDRZVW TYPE STRING,
VERGZVW TYPE STRING,
WRDPRGEBRAUT TYPE STRING,
WRKNBIJDRAUT TYPE STRING,
LVLPREG TYPE STRING,
LVLPREGTOEG TYPE STRING,
REISK TYPE STRING,
VERRARBKRT TYPE STRING,
BEDRZDAFTR TYPE STRING,
BEDRALINWWB TYPE STRING,
BEDRRCHTAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P05T_JLO_OVERVIEW_ALV_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_P05T_JLO_OVERVIEW_ALV_STR-LHNR sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-JAAR sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-DATAANVTV sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-DATEINDTV sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-SEQNO sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-AANTIV sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-LNLBPH sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-LNSV sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-LNTABBB sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-INGLBPH sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-PRWAOAOF sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-PRWAOAOK sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-PRAWF sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-PRWGF sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-PRUFO sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-BIJDRZVW sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-VERGZVW sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-WRDPRGEBRAUT sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-WRKNBIJDRAUT sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-LVLPREG sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-LVLPREGTOEG sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-REISK sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-VERRARBKRT sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-BEDRZDAFTR sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-BEDRALINWWB sy-vline 
WA_P05T_JLO_OVERVIEW_ALV_STR-BEDRRCHTAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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