ABAP Select data from SAP table CNT_V_005_B into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNT_V_005_B 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 CNT_V_005_B. 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 CNT_V_005_B 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_CNT_V_005_B TYPE STANDARD TABLE OF CNT_V_005_B,
      WA_CNT_V_005_B TYPE CNT_V_005_B,
      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: <CNT_V_005_B> TYPE CNT_V_005_B.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CNT_V_005_B.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CNT_V_005_B
  INTO TABLE IT_CNT_V_005_B.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNT_V_005_B
*  INTO TABLE @DATA(IT_CNT_V_005_B2).
*--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_CNT_V_005_B INDEX 1 INTO DATA(WA_CNT_V_005_B2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CNT_V_005_B ASSIGNING <CNT_V_005_B>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNT_V_005_B>-LAND1 = 1.
<CNT_V_005_B>-LNPLZ = 1.
<CNT_V_005_B>-PRPLZ = 1.
<CNT_V_005_B>-XREGS = 1.
<CNT_V_005_B>-XPLST = 1.

ENDLOOP.

LOOP AT IT_CNT_V_005_B INTO WA_CNT_V_005_B.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNT_V_005_B-LNBKN, sy-vline,
  WA_CNT_V_005_B-PRBKN, sy-vline,
  WA_CNT_V_005_B-LNBLZ, sy-vline,
  WA_CNT_V_005_B-PRBLZ, sy-vline,
  WA_CNT_V_005_B-LNPSK, sy-vline,
  WA_CNT_V_005_B-PRPSK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNT_V_005_B 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_CNT_V_005_B 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_CNT_V_005_B INTO WA_CNT_V_005_B.


*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_CNT_V_005_B_STR, 
LAND1 TYPE STRING,
LNPLZ TYPE STRING,
PRPLZ TYPE STRING,
XREGS TYPE STRING,
XPLST TYPE STRING,
LNBKN TYPE STRING,
PRBKN TYPE STRING,
LNBLZ TYPE STRING,
PRBLZ TYPE STRING,
LNPSK TYPE STRING,
PRPSK TYPE STRING,
LNST1 TYPE STRING,
PRST1 TYPE STRING,
LNST2 TYPE STRING,
PRST2 TYPE STRING,
UINLN TYPE STRING,
PRUIN TYPE STRING,
XPLZS TYPE STRING,
XPLPF TYPE STRING,
XPRBK TYPE STRING,
XPRSO TYPE STRING,
BNKEY TYPE STRING,
LNBKS TYPE STRING,
PRBKS TYPE STRING,
LNST3 TYPE STRING,
PRST3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNT_V_005_B_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_CNT_V_005_B_STR-LAND1 sy-vline 
WA_CNT_V_005_B_STR-LNPLZ sy-vline 
WA_CNT_V_005_B_STR-PRPLZ sy-vline 
WA_CNT_V_005_B_STR-XREGS sy-vline 
WA_CNT_V_005_B_STR-XPLST sy-vline 
WA_CNT_V_005_B_STR-LNBKN sy-vline 
WA_CNT_V_005_B_STR-PRBKN sy-vline 
WA_CNT_V_005_B_STR-LNBLZ sy-vline 
WA_CNT_V_005_B_STR-PRBLZ sy-vline 
WA_CNT_V_005_B_STR-LNPSK sy-vline 
WA_CNT_V_005_B_STR-PRPSK sy-vline 
WA_CNT_V_005_B_STR-LNST1 sy-vline 
WA_CNT_V_005_B_STR-PRST1 sy-vline 
WA_CNT_V_005_B_STR-LNST2 sy-vline 
WA_CNT_V_005_B_STR-PRST2 sy-vline 
WA_CNT_V_005_B_STR-UINLN sy-vline 
WA_CNT_V_005_B_STR-PRUIN sy-vline 
WA_CNT_V_005_B_STR-XPLZS sy-vline 
WA_CNT_V_005_B_STR-XPLPF sy-vline 
WA_CNT_V_005_B_STR-XPRBK sy-vline 
WA_CNT_V_005_B_STR-XPRSO sy-vline 
WA_CNT_V_005_B_STR-BNKEY sy-vline 
WA_CNT_V_005_B_STR-LNBKS sy-vline 
WA_CNT_V_005_B_STR-PRBKS sy-vline 
WA_CNT_V_005_B_STR-LNST3 sy-vline 
WA_CNT_V_005_B_STR-PRST3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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