ABAP Select data from SAP table /ISDFPS/LM_TST_TREE_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/LM_TST_TREE_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 /ISDFPS/LM_TST_TREE_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 /ISDFPS/LM_TST_TREE_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_/ISDFPS/LM_TST_TREE_ALV TYPE STANDARD TABLE OF /ISDFPS/LM_TST_TREE_ALV,
      WA_/ISDFPS/LM_TST_TREE_ALV TYPE /ISDFPS/LM_TST_TREE_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: </ISDFPS/LM_TST_TREE_ALV> TYPE /ISDFPS/LM_TST_TREE_ALV.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/LM_TST_TREE_ALV
  INTO TABLE IT_/ISDFPS/LM_TST_TREE_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/LM_TST_TREE_ALV
*  INTO TABLE @DATA(IT_/ISDFPS/LM_TST_TREE_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_/ISDFPS/LM_TST_TREE_ALV INDEX 1 INTO DATA(WA_/ISDFPS/LM_TST_TREE_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/LM_TST_TREE_ALV ASSIGNING </ISDFPS/LM_TST_TREE_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/LM_TST_TREE_ALV>-OBJ_TYP = 1.
</ISDFPS/LM_TST_TREE_ALV>-OBJ_PKEY = 1.
</ISDFPS/LM_TST_TREE_ALV>-OBJ_KEY = 1.
</ISDFPS/LM_TST_TREE_ALV>-OBJ_KEY_EXT = 1.
</ISDFPS/LM_TST_TREE_ALV>-OBJNR = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/LM_TST_TREE_ALV INTO WA_/ISDFPS/LM_TST_TREE_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/LM_TST_TREE_ALV-TST_ICON, sy-vline,
  WA_/ISDFPS/LM_TST_TREE_ALV-ATEXT, sy-vline,
  WA_/ISDFPS/LM_TST_TREE_ALV-KTEXT, sy-vline,
  WA_/ISDFPS/LM_TST_TREE_ALV-BLART, sy-vline,
  WA_/ISDFPS/LM_TST_TREE_ALV-ARBPL, sy-vline,
  WA_/ISDFPS/LM_TST_TREE_ALV-ARBPL_TXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/LM_TST_TREE_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_/ISDFPS/LM_TST_TREE_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_/ISDFPS/LM_TST_TREE_ALV INTO WA_/ISDFPS/LM_TST_TREE_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 ALPHA, internal->external for field MEQUI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/LM_TST_TREE_ALV-MEQUI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/LM_TST_TREE_ALV-MEQUI.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/LM_TST_TREE_ALV-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/LM_TST_TREE_ALV-TPLNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit NUMCV, internal->external for field AFVC_VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/LM_TST_TREE_ALV-AFVC_VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/LM_TST_TREE_ALV-AFVC_VORNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field QMEL_MEQUI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/LM_TST_TREE_ALV-QMEL_MEQUI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/LM_TST_TREE_ALV-QMEL_MEQUI.
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_/ISDFPS/LM_TST_TREE_ALV_STR, 
OBJ_TYP TYPE STRING,
OBJ_PKEY TYPE STRING,
OBJ_KEY TYPE STRING,
OBJ_KEY_EXT TYPE STRING,
OBJNR TYPE STRING,
TST_ICON TYPE STRING,
ATEXT TYPE STRING,
KTEXT TYPE STRING,
BLART TYPE STRING,
ARBPL TYPE STRING,
ARBPL_TXT TYPE STRING,
MEQUI TYPE STRING,
ERDAT TYPE STRING,
AEDAT TYPE STRING,
EQUNR TYPE STRING,
SHTXT TYPE STRING,
D_OBJNR TYPE STRING,
T_OBJNR TYPE STRING,
IDENT TYPE STRING,
REMARK TYPE STRING,
XAUFK TYPE STRING,
XQMEL TYPE STRING,
XCEQ_AVAILABLE TYPE STRING,
TECH_STOP_FLAG TYPE STRING,
TECH_STOP_FLAG_CBOX TYPE STRING,
EQUIPMENT_DESIGNATION TYPE STRING,
TPLNR TYPE STRING,
SELECTED_EQUNR TYPE STRING,
RANK TYPE STRING,
PARENTRANK TYPE STRING,
AFIH_AUFNR TYPE STRING,
AFIH_OBJNR TYPE STRING,
AFIH_MEQUI TYPE STRING,
AFIH_AUART TYPE STRING,
AFIH_KTEXT TYPE STRING,
AFIH_EQUNR TYPE STRING,
AFIH_ERDAT TYPE STRING,
AFIH_AEDAT TYPE STRING,
AFIH_AUFPL TYPE STRING,
AFVC_AUFPL TYPE STRING,
AFVC_OBJNR TYPE STRING,
AFVC_VORNR TYPE STRING,
AFVC_STEUS TYPE STRING,
AFVC_LTXA1 TYPE STRING,
AFVC_ARBID TYPE STRING,
AFVC_WERKS TYPE STRING,
AFVC_ARBPL TYPE STRING,
AFVC_ATEXT TYPE STRING,
AFVC_AUFNR TYPE STRING,
QMEL_QMNUM TYPE STRING,
QMEL_IWERK TYPE STRING,
QMEL_EQUNR TYPE STRING,
QMEL_QMTXT TYPE STRING,
QMEL_ARTPR TYPE STRING,
QMEL_PRIOK TYPE STRING,
QMEL_AUFNR TYPE STRING,
QMEL_OBJNR TYPE STRING,
QMEL_MEQUI TYPE STRING,
QMEL_QMART TYPE STRING,
QMEL_LGWID TYPE STRING,
QMEL_AWERK TYPE STRING,
QMEL_ERDAT TYPE STRING,
QMEL_AEDAT TYPE STRING,
QMEL_ARBPL TYPE STRING,
QMEL_ATEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/LM_TST_TREE_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_/ISDFPS/LM_TST_TREE_ALV_STR-OBJ_TYP sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-OBJ_PKEY sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-OBJ_KEY sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-OBJ_KEY_EXT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-OBJNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-TST_ICON sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-ATEXT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-KTEXT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-BLART sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-ARBPL sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-ARBPL_TXT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-MEQUI sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-ERDAT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AEDAT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-EQUNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-SHTXT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-D_OBJNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-T_OBJNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-IDENT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-REMARK sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-XAUFK sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-XQMEL sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-XCEQ_AVAILABLE sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-TECH_STOP_FLAG sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-TECH_STOP_FLAG_CBOX sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-EQUIPMENT_DESIGNATION sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-TPLNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-SELECTED_EQUNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-RANK sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-PARENTRANK sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFIH_AUFNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFIH_OBJNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFIH_MEQUI sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFIH_AUART sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFIH_KTEXT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFIH_EQUNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFIH_ERDAT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFIH_AEDAT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFIH_AUFPL sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFVC_AUFPL sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFVC_OBJNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFVC_VORNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFVC_STEUS sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFVC_LTXA1 sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFVC_ARBID sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFVC_WERKS sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFVC_ARBPL sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFVC_ATEXT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-AFVC_AUFNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_QMNUM sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_IWERK sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_EQUNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_QMTXT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_ARTPR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_PRIOK sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_AUFNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_OBJNR sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_MEQUI sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_QMART sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_LGWID sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_AWERK sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_ERDAT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_AEDAT sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_ARBPL sy-vline 
WA_/ISDFPS/LM_TST_TREE_ALV_STR-QMEL_ATEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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