ABAP Select data from SAP table V_TBZ4_01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TBZ4_01 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_TBZ4_01. 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_TBZ4_01 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_TBZ4_01 TYPE STANDARD TABLE OF V_TBZ4_01,
      WA_V_TBZ4_01 TYPE V_TBZ4_01,
      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_TBZ4_01> TYPE V_TBZ4_01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TBZ4_01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TBZ4_01
  INTO TABLE IT_V_TBZ4_01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TBZ4_01
*  INTO TABLE @DATA(IT_V_TBZ4_012).
*--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_TBZ4_01 INDEX 1 INTO DATA(WA_V_TBZ4_012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TBZ4_01 ASSIGNING <V_TBZ4_01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TBZ4_01>-CLIENT = 1.
<V_TBZ4_01>-OBJAP = 1.
<V_TBZ4_01>-FCODE = 1.
<V_TBZ4_01>-XSTND = 1.
<V_TBZ4_01>-MNLID = 1.

ENDLOOP.

LOOP AT IT_V_TBZ4_01 INTO WA_V_TBZ4_01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TBZ4_01-FNKEY, sy-vline,
  WA_V_TBZ4_01-VARTP, sy-vline,
  WA_V_TBZ4_01-APPLI, sy-vline,
  WA_V_TBZ4_01-XNRM1, sy-vline,
  WA_V_TBZ4_01-XNRM2, sy-vline,
  WA_V_TBZ4_01-XNRM3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TBZ4_01 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_TBZ4_01 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_TBZ4_01 INTO WA_V_TBZ4_01.


*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_V_TBZ4_01_STR, 
CLIENT TYPE STRING,
OBJAP TYPE STRING,
FCODE TYPE STRING,
XSTND TYPE STRING,
MNLID TYPE STRING,
FNKEY TYPE STRING,
VARTP TYPE STRING,
APPLI TYPE STRING,
XNRM1 TYPE STRING,
XNRM2 TYPE STRING,
XNRM3 TYPE STRING,
XCLL1 TYPE STRING,
XCLL2 TYPE STRING,
XCLL3 TYPE STRING,
FCTXT TYPE STRING,
TXT50 TYPE STRING,
BEZ30 TYPE STRING,
FLDGR TYPE STRING,
ACTIV_SPP TYPE STRING,
ACTIV_DSP TYPE STRING,
ACTIV_OPT TYPE STRING,
ACTIV_OBL TYPE STRING,
BEZ50 TYPE STRING,
ICON_NAME TYPE STRING,
QUICKINFO TYPE STRING,
ICON_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TBZ4_01_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_TBZ4_01_STR-CLIENT sy-vline 
WA_V_TBZ4_01_STR-OBJAP sy-vline 
WA_V_TBZ4_01_STR-FCODE sy-vline 
WA_V_TBZ4_01_STR-XSTND sy-vline 
WA_V_TBZ4_01_STR-MNLID sy-vline 
WA_V_TBZ4_01_STR-FNKEY sy-vline 
WA_V_TBZ4_01_STR-VARTP sy-vline 
WA_V_TBZ4_01_STR-APPLI sy-vline 
WA_V_TBZ4_01_STR-XNRM1 sy-vline 
WA_V_TBZ4_01_STR-XNRM2 sy-vline 
WA_V_TBZ4_01_STR-XNRM3 sy-vline 
WA_V_TBZ4_01_STR-XCLL1 sy-vline 
WA_V_TBZ4_01_STR-XCLL2 sy-vline 
WA_V_TBZ4_01_STR-XCLL3 sy-vline 
WA_V_TBZ4_01_STR-FCTXT sy-vline 
WA_V_TBZ4_01_STR-TXT50 sy-vline 
WA_V_TBZ4_01_STR-BEZ30 sy-vline 
WA_V_TBZ4_01_STR-FLDGR sy-vline 
WA_V_TBZ4_01_STR-ACTIV_SPP sy-vline 
WA_V_TBZ4_01_STR-ACTIV_DSP sy-vline 
WA_V_TBZ4_01_STR-ACTIV_OPT sy-vline 
WA_V_TBZ4_01_STR-ACTIV_OBL sy-vline 
WA_V_TBZ4_01_STR-BEZ50 sy-vline 
WA_V_TBZ4_01_STR-ICON_NAME sy-vline 
WA_V_TBZ4_01_STR-QUICKINFO sy-vline 
WA_V_TBZ4_01_STR-ICON_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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