ABAP Select data from SAP table CNV_21500_PCL2_B2_WSTOLD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNV_21500_PCL2_B2_WSTOLD 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 CNV_21500_PCL2_B2_WSTOLD. 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 CNV_21500_PCL2_B2_WSTOLD 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_CNV_21500_PCL2_B2_WSTOLD TYPE STANDARD TABLE OF CNV_21500_PCL2_B2_WSTOLD,
      WA_CNV_21500_PCL2_B2_WSTOLD TYPE CNV_21500_PCL2_B2_WSTOLD,
      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: <CNV_21500_PCL2_B2_WSTOLD> TYPE CNV_21500_PCL2_B2_WSTOLD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CNV_21500_PCL2_B2_WSTOLD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CNV_21500_PCL2_B2_WSTOLD
  INTO TABLE IT_CNV_21500_PCL2_B2_WSTOLD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNV_21500_PCL2_B2_WSTOLD
*  INTO TABLE @DATA(IT_CNV_21500_PCL2_B2_WSTOLD2).
*--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_CNV_21500_PCL2_B2_WSTOLD INDEX 1 INTO DATA(WA_CNV_21500_PCL2_B2_WSTOLD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CNV_21500_PCL2_B2_WSTOLD ASSIGNING <CNV_21500_PCL2_B2_WSTOLD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNV_21500_PCL2_B2_WSTOLD>-LDATE = 1.
<CNV_21500_PCL2_B2_WSTOLD>-RUECK = 1.
<CNV_21500_PCL2_B2_WSTOLD>-WSID1 = 1.
<CNV_21500_PCL2_B2_WSTOLD>-WSID2 = 1.
<CNV_21500_PCL2_B2_WSTOLD>-SRCSYS = 1.

ENDLOOP.

LOOP AT IT_CNV_21500_PCL2_B2_WSTOLD INTO WA_CNV_21500_PCL2_B2_WSTOLD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNV_21500_PCL2_B2_WSTOLD-BEGTM, sy-vline,
  WA_CNV_21500_PCL2_B2_WSTOLD-ENDTM, sy-vline,
  WA_CNV_21500_PCL2_B2_WSTOLD-PDSNR_AASS, sy-vline,
  WA_CNV_21500_PCL2_B2_WSTOLD-PDSNR_LAST, sy-vline,
  WA_CNV_21500_PCL2_B2_WSTOLD-DES1F, sy-vline,
  WA_CNV_21500_PCL2_B2_WSTOLD-DES2F, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNV_21500_PCL2_B2_WSTOLD 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_CNV_21500_PCL2_B2_WSTOLD 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_CNV_21500_PCL2_B2_WSTOLD INTO WA_CNV_21500_PCL2_B2_WSTOLD.


*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_CNV_21500_PCL2_B2_WSTOLD_STR, 
LDATE TYPE STRING,
RUECK TYPE STRING,
WSID1 TYPE STRING,
WSID2 TYPE STRING,
SRCSYS TYPE STRING,
BEGTM TYPE STRING,
ENDTM TYPE STRING,
PDSNR_AASS TYPE STRING,
PDSNR_LAST TYPE STRING,
DES1F TYPE STRING,
DES2F TYPE STRING,
SMJRF TYPE STRING,
EXUPD TYPE STRING,
VGW01 TYPE STRING,
VGE01 TYPE STRING,
SOW01 TYPE STRING,
SOE01 TYPE STRING,
RUW01 TYPE STRING,
RUE01 TYPE STRING,
BEG01 TYPE STRING,
END01 TYPE STRING,
VGW02 TYPE STRING,
VGE02 TYPE STRING,
SOW02 TYPE STRING,
SOE02 TYPE STRING,
RUW02 TYPE STRING,
RUE02 TYPE STRING,
BEG02 TYPE STRING,
END02 TYPE STRING,
VGW03 TYPE STRING,
VGE03 TYPE STRING,
SOW03 TYPE STRING,
SOE03 TYPE STRING,
RUW03 TYPE STRING,
RUE03 TYPE STRING,
BEG03 TYPE STRING,
END03 TYPE STRING,
VGW04 TYPE STRING,
VGE04 TYPE STRING,
SOW04 TYPE STRING,
SOE04 TYPE STRING,
RUW04 TYPE STRING,
RUE04 TYPE STRING,
BEG04 TYPE STRING,
END04 TYPE STRING,
VGW05 TYPE STRING,
VGE05 TYPE STRING,
SOW05 TYPE STRING,
SOE05 TYPE STRING,
RUW05 TYPE STRING,
RUE05 TYPE STRING,
BEG05 TYPE STRING,
END05 TYPE STRING,
VGW06 TYPE STRING,
VGE06 TYPE STRING,
SOW06 TYPE STRING,
SOE06 TYPE STRING,
RUW06 TYPE STRING,
RUE06 TYPE STRING,
BEG06 TYPE STRING,
END06 TYPE STRING,
MEINH TYPE STRING,
LMNGA TYPE STRING,
XMNGA TYPE STRING,
GRUND TYPE STRING,
BMSCH TYPE STRING,
PP_RUW01 TYPE STRING,
PP_RUE01 TYPE STRING,
PP_RUW02 TYPE STRING,
PP_RUE02 TYPE STRING,
PP_RUW03 TYPE STRING,
PP_RUE03 TYPE STRING,
PP_RUW04 TYPE STRING,
PP_RUE04 TYPE STRING,
PP_RUW05 TYPE STRING,
PP_RUE05 TYPE STRING,
PP_RUW06 TYPE STRING,
PP_RUE06 TYPE STRING,
SCRPR TYPE STRING,
KUM01 TYPE STRING,
LOARR TYPE STRING,
LOGRR TYPE STRING,
TRFST TYPE STRING,
LSTYP TYPE STRING,
OPCLS TYPE STRING,
GRUNR TYPE STRING,
GRUNA TYPE STRING,
PDC_USRUP TYPE STRING,
USER2 TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
LTLST TYPE STRING,
AUFNR TYPE STRING,
KSTRG TYPE STRING,
POSID TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PRZNR TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
SKOST TYPE STRING,
SBUKR TYPE STRING,
SGSBR TYPE STRING,
SGTXT TYPE STRING,
DART TYPE STRING,
UDART TYPE STRING,
PRAKN TYPE STRING,
PRAKZ TYPE STRING,
OTYPE TYPE STRING,
PLANS TYPE STRING,
AUFKZ TYPE STRING,
BWGRL TYPE STRING,
WAERS TYPE STRING,
LOGOS TYPE STRING,
ENDDA TYPE STRING,
COMCH TYPE STRING,
FKBER TYPE STRING,
GRANT_NBR TYPE STRING,
FIPOS TYPE STRING,
FIPEX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNV_21500_PCL2_B2_WSTOLD_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_CNV_21500_PCL2_B2_WSTOLD_STR-LDATE sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUECK sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-WSID1 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-WSID2 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SRCSYS sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-BEGTM sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-ENDTM sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PDSNR_AASS sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PDSNR_LAST sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-DES1F sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-DES2F sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SMJRF sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-EXUPD sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGW01 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGE01 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOW01 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOE01 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUW01 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUE01 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-BEG01 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-END01 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGW02 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGE02 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOW02 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOE02 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUW02 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUE02 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-BEG02 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-END02 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGW03 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGE03 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOW03 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOE03 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUW03 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUE03 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-BEG03 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-END03 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGW04 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGE04 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOW04 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOE04 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUW04 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUE04 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-BEG04 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-END04 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGW05 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGE05 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOW05 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOE05 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUW05 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUE05 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-BEG05 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-END05 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGW06 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VGE06 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOW06 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SOE06 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUW06 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-RUE06 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-BEG06 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-END06 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-MEINH sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-LMNGA sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-XMNGA sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-GRUND sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-BMSCH sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUW01 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUE01 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUW02 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUE02 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUW03 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUE03 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUW04 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUE04 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUW05 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUE05 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUW06 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PP_RUE06 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SCRPR sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-KUM01 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-LOARR sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-LOGRR sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-TRFST sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-LSTYP sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-OPCLS sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-GRUNR sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-GRUNA sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PDC_USRUP sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-USER2 sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-BUKRS sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-GSBER sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-KOSTL sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-LTLST sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-AUFNR sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-KSTRG sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-POSID sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-NPLNR sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-VORNR sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-KDAUF sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-KDPOS sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PRZNR sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-FISTL sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-GEBER sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SKOST sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SBUKR sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SGSBR sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-SGTXT sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-DART sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-UDART sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PRAKN sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PRAKZ sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-OTYPE sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-PLANS sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-AUFKZ sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-BWGRL sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-WAERS sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-LOGOS sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-ENDDA sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-COMCH sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-FKBER sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-GRANT_NBR sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-FIPOS sy-vline 
WA_CNV_21500_PCL2_B2_WSTOLD_STR-FIPEX sy-vline      INTO ld_text SEPARATED BY SPACE.

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