ABAP Select data from SAP table V_ANEP_CHK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_ANEP_CHK
*  INTO TABLE @DATA(IT_V_ANEP_CHK2).
*--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_V_ANEP_CHK INDEX 1 INTO DATA(WA_V_ANEP_CHK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_ANEP_CHK>-MANDT = 1.
<V_ANEP_CHK>-BUKRS = 1.
<V_ANEP_CHK>-ANLN1 = 1.
<V_ANEP_CHK>-ANLN2 = 1.
<V_ANEP_CHK>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_ANEP_CHK-LNRAN, sy-vline,
  WA_V_ANEP_CHK-AFABE, sy-vline,
  WA_V_ANEP_CHK-ZUJHR, sy-vline,
  WA_V_ANEP_CHK-ZUCOD, sy-vline,
  WA_V_ANEP_CHK-ANBTR, sy-vline,
  WA_V_ANEP_CHK-KTOGR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_ANEP_CHK 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_V_ANEP_CHK 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_V_ANEP_CHK INTO WA_V_ANEP_CHK.


*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 ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_ANEP_CHK-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_ANEP_CHK-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_ANEP_CHK-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_ANEP_CHK-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_ANEP_CHK-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_ANEP_CHK-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field ZUJHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_ANEP_CHK-ZUJHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_ANEP_CHK-ZUJHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ANBTR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_V_ANEP_CHK-ANBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_ANEP_CHK-ANBTR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field AWSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_ANEP_CHK-AWSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_ANEP_CHK-AWSYS.
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_V_ANEP_CHK_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
GJAHR TYPE STRING,
LNRAN TYPE STRING,
AFABE TYPE STRING,
ZUJHR TYPE STRING,
ZUCOD TYPE STRING,
ANBTR TYPE STRING,
KTOGR TYPE STRING,
XANTW TYPE STRING,
BWASL TYPE STRING,
BELNR TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
AWSYS TYPE STRING,
TCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_ANEP_CHK_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_V_ANEP_CHK_STR-MANDT sy-vline 
WA_V_ANEP_CHK_STR-BUKRS sy-vline 
WA_V_ANEP_CHK_STR-ANLN1 sy-vline 
WA_V_ANEP_CHK_STR-ANLN2 sy-vline 
WA_V_ANEP_CHK_STR-GJAHR sy-vline 
WA_V_ANEP_CHK_STR-LNRAN sy-vline 
WA_V_ANEP_CHK_STR-AFABE sy-vline 
WA_V_ANEP_CHK_STR-ZUJHR sy-vline 
WA_V_ANEP_CHK_STR-ZUCOD sy-vline 
WA_V_ANEP_CHK_STR-ANBTR sy-vline 
WA_V_ANEP_CHK_STR-KTOGR sy-vline 
WA_V_ANEP_CHK_STR-XANTW sy-vline 
WA_V_ANEP_CHK_STR-BWASL sy-vline 
WA_V_ANEP_CHK_STR-BELNR sy-vline 
WA_V_ANEP_CHK_STR-AWTYP sy-vline 
WA_V_ANEP_CHK_STR-AWORG sy-vline 
WA_V_ANEP_CHK_STR-AWSYS sy-vline 
WA_V_ANEP_CHK_STR-TCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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