ABAP Select data from SAP table V_TF001 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TF001 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_TF001. 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_TF001 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_TF001 TYPE STANDARD TABLE OF V_TF001,
      WA_V_TF001 TYPE V_TF001,
      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_TF001> TYPE V_TF001.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TF001.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TF001
  INTO TABLE IT_V_TF001.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TF001
*  INTO TABLE @DATA(IT_V_TF0012).
*--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_TF001 INDEX 1 INTO DATA(WA_V_TF0012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TF001 ASSIGNING <V_TF001>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TF001>-MANDT = 1.
<V_TF001>-SEQNR = 1.
<V_TF001>-ALPHA = 1.
<V_TF001>-ALPHB = 1.
<V_TF001>-MONITOR = 1.

ENDLOOP.

LOOP AT IT_V_TF001 INTO WA_V_TF001.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TF001-PEROPEN, sy-vline,
  WA_V_TF001-CONSCHECK, sy-vline,
  WA_V_TF001-STLGH, sy-vline,
  WA_V_TF001-VALLGH, sy-vline,
  WA_V_TF001-CISTI, sy-vline,
  WA_V_TF001-PRGRPUSE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TF001 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_TF001 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_TF001 INTO WA_V_TF001.


*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 GJAHR, internal->external for field FRYEAR_S4H_W
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_TF001-FRYEAR_S4H_W
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TF001-FRYEAR_S4H_W.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FRYEAR_GROUP_REP_S4H
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_TF001-FRYEAR_GROUP_REP_S4H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TF001-FRYEAR_GROUP_REP_S4H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FRYEAR_FIN_ACC_INTEGR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_TF001-FRYEAR_FIN_ACC_INTEGR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TF001-FRYEAR_FIN_ACC_INTEGR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FRYEAR_MIG_ECCS_S4GR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_TF001-FRYEAR_MIG_ECCS_S4GR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TF001-FRYEAR_MIG_ECCS_S4GR.
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_TF001_STR, 
MANDT TYPE STRING,
SEQNR TYPE STRING,
ALPHA TYPE STRING,
ALPHB TYPE STRING,
MONITOR TYPE STRING,
PEROPEN TYPE STRING,
CONSCHECK TYPE STRING,
STLGH TYPE STRING,
VALLGH TYPE STRING,
CISTI TYPE STRING,
PRGRPUSE TYPE STRING,
SIITGRPIGN TYPE STRING,
MAXSET TYPE STRING,
REP_PERIV TYPE STRING,
DEFRM_LOCK TYPE STRING,
BCF_CORR1 TYPE STRING,
FRYEAR_S4H_W TYPE STRING,
FRYEAR_GROUP_REP_S4H TYPE STRING,
FRYEAR_FIN_ACC_INTEGR TYPE STRING,
FRYEAR_MIG_ECCS_S4GR TYPE STRING,
SELOBJ_RCL_TRIGGER TYPE STRING,
SELOBJ_CTR TYPE STRING,
SELOBJ_MAXSEL TYPE STRING,
ACDOCU_DE TYPE STRING,
VAL_S4H TYPE STRING,
ROLE_ATT TYPE STRING,
GROUP_REP_S4H TYPE STRING,
MIG_HYBRID_S4GR TYPE STRING,
GC_ENTRY_ALLOWED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TF001_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_TF001_STR-MANDT sy-vline 
WA_V_TF001_STR-SEQNR sy-vline 
WA_V_TF001_STR-ALPHA sy-vline 
WA_V_TF001_STR-ALPHB sy-vline 
WA_V_TF001_STR-MONITOR sy-vline 
WA_V_TF001_STR-PEROPEN sy-vline 
WA_V_TF001_STR-CONSCHECK sy-vline 
WA_V_TF001_STR-STLGH sy-vline 
WA_V_TF001_STR-VALLGH sy-vline 
WA_V_TF001_STR-CISTI sy-vline 
WA_V_TF001_STR-PRGRPUSE sy-vline 
WA_V_TF001_STR-SIITGRPIGN sy-vline 
WA_V_TF001_STR-MAXSET sy-vline 
WA_V_TF001_STR-REP_PERIV sy-vline 
WA_V_TF001_STR-DEFRM_LOCK sy-vline 
WA_V_TF001_STR-BCF_CORR1 sy-vline 
WA_V_TF001_STR-FRYEAR_S4H_W sy-vline 
WA_V_TF001_STR-FRYEAR_GROUP_REP_S4H sy-vline 
WA_V_TF001_STR-FRYEAR_FIN_ACC_INTEGR sy-vline 
WA_V_TF001_STR-FRYEAR_MIG_ECCS_S4GR sy-vline 
WA_V_TF001_STR-SELOBJ_RCL_TRIGGER sy-vline 
WA_V_TF001_STR-SELOBJ_CTR sy-vline 
WA_V_TF001_STR-SELOBJ_MAXSEL sy-vline 
WA_V_TF001_STR-ACDOCU_DE sy-vline 
WA_V_TF001_STR-VAL_S4H sy-vline 
WA_V_TF001_STR-ROLE_ATT sy-vline 
WA_V_TF001_STR-GROUP_REP_S4H sy-vline 
WA_V_TF001_STR-MIG_HYBRID_S4GR sy-vline 
WA_V_TF001_STR-GC_ENTRY_ALLOWED sy-vline      INTO ld_text SEPARATED BY SPACE.

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