ABAP Select data from SAP table V_FLQ_FEB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_FLQ_FEB 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_FLQ_FEB. 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_FLQ_FEB 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_FLQ_FEB TYPE STANDARD TABLE OF V_FLQ_FEB,
      WA_V_FLQ_FEB TYPE V_FLQ_FEB,
      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_FLQ_FEB> TYPE V_FLQ_FEB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_FLQ_FEB
*  INTO TABLE @DATA(IT_V_FLQ_FEB2).
*--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_FLQ_FEB INDEX 1 INTO DATA(WA_V_FLQ_FEB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_FLQ_FEB>-MANDT = 1.
<V_FLQ_FEB>-ZBUKR = 1.
<V_FLQ_FEB>-BELNR = 1.
<V_FLQ_FEB>-GJAHR = 1.
<V_FLQ_FEB>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_FLQ_FEB-LQPOS, sy-vline,
  WA_V_FLQ_FEB-LQORIG, sy-vline,
  WA_V_FLQ_FEB-HKONT, sy-vline,
  WA_V_FLQ_FEB-LQDAY, sy-vline,
  WA_V_FLQ_FEB-KUKEY, sy-vline,
  WA_V_FLQ_FEB-XDELETE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_FLQ_FEB 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_FLQ_FEB 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_FLQ_FEB INTO WA_V_FLQ_FEB.


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

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

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

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_FLQ_FEB-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_FLQ_FEB-HKONT.
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_FLQ_FEB_STR, 
MANDT TYPE STRING,
ZBUKR TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUKRS TYPE STRING,
LQPOS TYPE STRING,
LQORIG TYPE STRING,
HKONT TYPE STRING,
LQDAY TYPE STRING,
KUKEY TYPE STRING,
XDELETE TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
KTONR TYPE STRING,
AZDAT TYPE STRING,
AZNUM TYPE STRING,
BUZEI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_FLQ_FEB_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_FLQ_FEB_STR-MANDT sy-vline 
WA_V_FLQ_FEB_STR-ZBUKR sy-vline 
WA_V_FLQ_FEB_STR-BELNR sy-vline 
WA_V_FLQ_FEB_STR-GJAHR sy-vline 
WA_V_FLQ_FEB_STR-BUKRS sy-vline 
WA_V_FLQ_FEB_STR-LQPOS sy-vline 
WA_V_FLQ_FEB_STR-LQORIG sy-vline 
WA_V_FLQ_FEB_STR-HKONT sy-vline 
WA_V_FLQ_FEB_STR-LQDAY sy-vline 
WA_V_FLQ_FEB_STR-KUKEY sy-vline 
WA_V_FLQ_FEB_STR-XDELETE sy-vline 
WA_V_FLQ_FEB_STR-HBKID sy-vline 
WA_V_FLQ_FEB_STR-HKTID sy-vline 
WA_V_FLQ_FEB_STR-KTONR sy-vline 
WA_V_FLQ_FEB_STR-AZDAT sy-vline 
WA_V_FLQ_FEB_STR-AZNUM sy-vline 
WA_V_FLQ_FEB_STR-BUZEI sy-vline      INTO ld_text SEPARATED BY SPACE.

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