ABAP Select data from SAP table /SAPDII/INC_VLCDISPLALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPDII/INC_VLCDISPLALV
*  INTO TABLE @DATA(IT_/SAPDII/INC_VLCDISPLALV2).
*--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_/SAPDII/INC_VLCDISPLALV INDEX 1 INTO DATA(WA_/SAPDII/INC_VLCDISPLALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPDII/INC_VLCDISPLALV>-ACTLED = 1.
</SAPDII/INC_VLCDISPLALV>-VGUID = 1.
</SAPDII/INC_VLCDISPLALV>-VHCLE = 1.
</SAPDII/INC_VLCDISPLALV>-VHCEX = 1.
</SAPDII/INC_VLCDISPLALV>-VHVIN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPDII/INC_VLCDISPLALV-AVAIL, sy-vline,
  WA_/SAPDII/INC_VLCDISPLALV-AVAILTXT, sy-vline,
  WA_/SAPDII/INC_VLCDISPLALV-PSDATU, sy-vline,
  WA_/SAPDII/INC_VLCDISPLALV-PSTIME, sy-vline,
  WA_/SAPDII/INC_VLCDISPLALV-PDDATU, sy-vline,
  WA_/SAPDII/INC_VLCDISPLALV-PDTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPDII/INC_VLCDISPLALV 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_/SAPDII/INC_VLCDISPLALV 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_/SAPDII/INC_VLCDISPLALV INTO WA_/SAPDII/INC_VLCDISPLALV.


*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_/SAPDII/INC_VLCDISPLALV_STR, 
ACTLED TYPE STRING,
VGUID TYPE STRING,
VHCLE TYPE STRING,
VHCEX TYPE STRING,
VHVIN TYPE STRING,
AVAIL TYPE STRING,
AVAILTXT TYPE STRING,
PSDATU TYPE STRING,
PSTIME TYPE STRING,
PDDATU TYPE STRING,
PDTIME TYPE STRING,
CDDATE TYPE STRING,
CDTIME TYPE STRING,
LOCTN TYPE STRING,
LOCTNCITY TYPE STRING,
LOCTNTXT TYPE STRING,
CONVPRICE TYPE STRING,
CONVPRICECUKY TYPE STRING,
VHUSG TYPE STRING,
VHUSGTXT TYPE STRING,
CMPGN TYPE STRING,
CMPGNTXT TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
MATNR TYPE STRING,
MATNRTXT TYPE STRING,
LIFNR TYPE STRING,
SU_NAME1 TYPE STRING,
KUNNR TYPE STRING,
CU_NAME1 TYPE STRING,
ENDCU TYPE STRING,
ENDCUHANDLE TYPE STRING,
CUOBJ TYPE STRING,
MMCTR TYPE STRING,
MMCTRTXT TYPE STRING,
MMSTA TYPE STRING,
MMSTATXT TYPE STRING,
MMDATU TYPE STRING,
MMTIME TYPE STRING,
SDCTR TYPE STRING,
SDCTRTXT TYPE STRING,
SDSTA TYPE STRING,
SDSTATXT TYPE STRING,
SDDATU TYPE STRING,
SDTIME TYPE STRING,
CHARAC1 TYPE STRING,
CHARAC2 TYPE STRING,
CHARAC3 TYPE STRING,
CHARAC4 TYPE STRING,
CHARAC5 TYPE STRING,
CHARAC6 TYPE STRING,
VBLTY TYPE STRING,
VBLTYTXT TYPE STRING,
SHLVL TYPE STRING,
SHLVL_TXT TYPE STRING,
VHSAR TYPE STRING,
VHSARTXT TYPE STRING,
ERNAM TYPE STRING,
PCOUNT TYPE STRING,
PCOUNT_U TYPE STRING,
IMMATDATE TYPE STRING,
CSTRYEAR TYPE STRING,
CSTRMONTH TYPE STRING,
XERROR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPDII/INC_VLCDISPLALV_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_/SAPDII/INC_VLCDISPLALV_STR-ACTLED sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-VGUID sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-VHCLE sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-VHCEX sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-VHVIN sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-AVAIL sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-AVAILTXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-PSDATU sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-PSTIME sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-PDDATU sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-PDTIME sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CDDATE sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CDTIME sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-LOCTN sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-LOCTNCITY sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-LOCTNTXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CONVPRICE sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CONVPRICECUKY sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-VHUSG sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-VHUSGTXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CMPGN sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CMPGNTXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-WERKS sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-LGORT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-MATNR sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-MATNRTXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-LIFNR sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-SU_NAME1 sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-KUNNR sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CU_NAME1 sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-ENDCU sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-ENDCUHANDLE sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CUOBJ sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-MMCTR sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-MMCTRTXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-MMSTA sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-MMSTATXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-MMDATU sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-MMTIME sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-SDCTR sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-SDCTRTXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-SDSTA sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-SDSTATXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-SDDATU sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-SDTIME sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CHARAC1 sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CHARAC2 sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CHARAC3 sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CHARAC4 sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CHARAC5 sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CHARAC6 sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-VBLTY sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-VBLTYTXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-SHLVL sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-SHLVL_TXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-VHSAR sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-VHSARTXT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-ERNAM sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-PCOUNT sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-PCOUNT_U sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-IMMATDATE sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CSTRYEAR sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-CSTRMONTH sy-vline 
WA_/SAPDII/INC_VLCDISPLALV_STR-XERROR sy-vline      INTO ld_text SEPARATED BY SPACE.

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