ABAP Select data from SAP table T5DBZ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T5DBZ 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 T5DBZ. 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 T5DBZ 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_T5DBZ TYPE STANDARD TABLE OF T5DBZ,
      WA_T5DBZ TYPE T5DBZ,
      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: <T5DBZ> TYPE T5DBZ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T5DBZ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T5DBZ
  INTO TABLE IT_T5DBZ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T5DBZ
*  INTO TABLE @DATA(IT_T5DBZ2).
*--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_T5DBZ INDEX 1 INTO DATA(WA_T5DBZ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T5DBZ ASSIGNING <T5DBZ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T5DBZ>-MANDT = 1.
<T5DBZ>-ZVKAS = 1.
<T5DBZ>-RZNUM = 1.
<T5DBZ>-RZDAT = 1.
<T5DBZ>-SEQN4 = 1.

ENDLOOP.

LOOP AT IT_T5DBZ INTO WA_T5DBZ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T5DBZ-PER01, sy-vline,
  WA_T5DBZ-FOR01, sy-vline,
  WA_T5DBZ-END01, sy-vline,
  WA_T5DBZ-SEQ01, sy-vline,
  WA_T5DBZ-PER02, sy-vline,
  WA_T5DBZ-FOR02, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T5DBZ 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_T5DBZ 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_T5DBZ INTO WA_T5DBZ.


*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_T5DBZ_STR, 
MANDT TYPE STRING,
ZVKAS TYPE STRING,
RZNUM TYPE STRING,
RZDAT TYPE STRING,
SEQN4 TYPE STRING,
PER01 TYPE STRING,
FOR01 TYPE STRING,
END01 TYPE STRING,
SEQ01 TYPE STRING,
PER02 TYPE STRING,
FOR02 TYPE STRING,
END02 TYPE STRING,
SEQ02 TYPE STRING,
PER03 TYPE STRING,
FOR03 TYPE STRING,
END03 TYPE STRING,
SEQ03 TYPE STRING,
PER04 TYPE STRING,
FOR04 TYPE STRING,
END04 TYPE STRING,
SEQ04 TYPE STRING,
PER05 TYPE STRING,
FOR05 TYPE STRING,
END05 TYPE STRING,
SEQ05 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T5DBZ_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_T5DBZ_STR-MANDT sy-vline 
WA_T5DBZ_STR-ZVKAS sy-vline 
WA_T5DBZ_STR-RZNUM sy-vline 
WA_T5DBZ_STR-RZDAT sy-vline 
WA_T5DBZ_STR-SEQN4 sy-vline 
WA_T5DBZ_STR-PER01 sy-vline 
WA_T5DBZ_STR-FOR01 sy-vline 
WA_T5DBZ_STR-END01 sy-vline 
WA_T5DBZ_STR-SEQ01 sy-vline 
WA_T5DBZ_STR-PER02 sy-vline 
WA_T5DBZ_STR-FOR02 sy-vline 
WA_T5DBZ_STR-END02 sy-vline 
WA_T5DBZ_STR-SEQ02 sy-vline 
WA_T5DBZ_STR-PER03 sy-vline 
WA_T5DBZ_STR-FOR03 sy-vline 
WA_T5DBZ_STR-END03 sy-vline 
WA_T5DBZ_STR-SEQ03 sy-vline 
WA_T5DBZ_STR-PER04 sy-vline 
WA_T5DBZ_STR-FOR04 sy-vline 
WA_T5DBZ_STR-END04 sy-vline 
WA_T5DBZ_STR-SEQ04 sy-vline 
WA_T5DBZ_STR-PER05 sy-vline 
WA_T5DBZ_STR-FOR05 sy-vline 
WA_T5DBZ_STR-END05 sy-vline 
WA_T5DBZ_STR-SEQ05 sy-vline      INTO ld_text SEPARATED BY SPACE.

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