ABAP Select data from SAP table T5DCA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T5DCA 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 T5DCA. 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 T5DCA 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_T5DCA TYPE STANDARD TABLE OF T5DCA,
      WA_T5DCA TYPE T5DCA,
      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: <T5DCA> TYPE T5DCA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T5DCA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T5DCA
  INTO TABLE IT_T5DCA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T5DCA
*  INTO TABLE @DATA(IT_T5DCA2).
*--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_T5DCA INDEX 1 INTO DATA(WA_T5DCA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T5DCA ASSIGNING <T5DCA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T5DCA>-MANDT = 1.
<T5DCA>-ANTYP = 1.
<T5DCA>-ANSPR = 1.
<T5DCA>-BVANS = 1.
<T5DCA>-TABBV = 1.

ENDLOOP.

LOOP AT IT_T5DCA INTO WA_T5DCA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T5DCA-ITBLD, sy-vline,
  WA_T5DCA-ASTYP, sy-vline,
  WA_T5DCA-ZEITB, sy-vline,
  WA_T5DCA-KOKLA, sy-vline,
  WA_T5DCA-KREAK, sy-vline,
  WA_T5DCA-RELRE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T5DCA 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_T5DCA 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_T5DCA INTO WA_T5DCA.


*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_T5DCA_STR, 
MANDT TYPE STRING,
ANTYP TYPE STRING,
ANSPR TYPE STRING,
BVANS TYPE STRING,
TABBV TYPE STRING,
ITBLD TYPE STRING,
ASTYP TYPE STRING,
ZEITB TYPE STRING,
KOKLA TYPE STRING,
KREAK TYPE STRING,
RELRE TYPE STRING,
MORER TYPE STRING,
RELVU TYPE STRING,
RELBS TYPE STRING,
DTYBS TYPE STRING,
STABS TYPE STRING,
DATEI TYPE STRING,
P16EI TYPE STRING,
CSCRN TYPE STRING,
VLSTG TYPE STRING,
SLSTG TYPE STRING,
SONLS TYPE STRING,
LSTTR TYPE STRING,
VLTRG TYPE STRING,
VLTMA TYPE STRING,
LTFIX TYPE STRING,
VLTZF TYPE STRING,
VLUSP TYPE STRING,
VLUMA TYPE STRING,
LUFIX TYPE STRING,
ZEINH TYPE STRING,
ANZMI TYPE STRING,
ANZMA TYPE STRING,
REGRL TYPE STRING,
VSTAT TYPE STRING,
USEST TYPE STRING,
BABEI TYPE STRING,
IDBEP TYPE STRING,
IDBER TYPE STRING,
IDBE1 TYPE STRING,
IDBE2 TYPE STRING,
BAEIN TYPE STRING,
IDBAP TYPE STRING,
IDBA1 TYPE STRING,
IDBA2 TYPE STRING,
ANLND TYPE STRING,
CHKFR TYPE STRING,
BESGR TYPE STRING,
BLAGR TYPE STRING,
RDACV TYPE STRING,
RELAB TYPE STRING,
VRLAB TYPE STRING,
KZABL TYPE STRING,
KZUMW TYPE STRING,
BGRRB TYPE STRING,
ZANSP TYPE STRING,
KNZZF TYPE STRING,
ZERTF TYPE STRING,
BEWUZ TYPE STRING,
ENDGH TYPE STRING,
GLRSK TYPE STRING,
TLREL TYPE STRING,
VAKMT TYPE STRING,
RBZUS TYPE STRING,
ANPPF TYPE STRING,
FKTUA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T5DCA_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_T5DCA_STR-MANDT sy-vline 
WA_T5DCA_STR-ANTYP sy-vline 
WA_T5DCA_STR-ANSPR sy-vline 
WA_T5DCA_STR-BVANS sy-vline 
WA_T5DCA_STR-TABBV sy-vline 
WA_T5DCA_STR-ITBLD sy-vline 
WA_T5DCA_STR-ASTYP sy-vline 
WA_T5DCA_STR-ZEITB sy-vline 
WA_T5DCA_STR-KOKLA sy-vline 
WA_T5DCA_STR-KREAK sy-vline 
WA_T5DCA_STR-RELRE sy-vline 
WA_T5DCA_STR-MORER sy-vline 
WA_T5DCA_STR-RELVU sy-vline 
WA_T5DCA_STR-RELBS sy-vline 
WA_T5DCA_STR-DTYBS sy-vline 
WA_T5DCA_STR-STABS sy-vline 
WA_T5DCA_STR-DATEI sy-vline 
WA_T5DCA_STR-P16EI sy-vline 
WA_T5DCA_STR-CSCRN sy-vline 
WA_T5DCA_STR-VLSTG sy-vline 
WA_T5DCA_STR-SLSTG sy-vline 
WA_T5DCA_STR-SONLS sy-vline 
WA_T5DCA_STR-LSTTR sy-vline 
WA_T5DCA_STR-VLTRG sy-vline 
WA_T5DCA_STR-VLTMA sy-vline 
WA_T5DCA_STR-LTFIX sy-vline 
WA_T5DCA_STR-VLTZF sy-vline 
WA_T5DCA_STR-VLUSP sy-vline 
WA_T5DCA_STR-VLUMA sy-vline 
WA_T5DCA_STR-LUFIX sy-vline 
WA_T5DCA_STR-ZEINH sy-vline 
WA_T5DCA_STR-ANZMI sy-vline 
WA_T5DCA_STR-ANZMA sy-vline 
WA_T5DCA_STR-REGRL sy-vline 
WA_T5DCA_STR-VSTAT sy-vline 
WA_T5DCA_STR-USEST sy-vline 
WA_T5DCA_STR-BABEI sy-vline 
WA_T5DCA_STR-IDBEP sy-vline 
WA_T5DCA_STR-IDBER sy-vline 
WA_T5DCA_STR-IDBE1 sy-vline 
WA_T5DCA_STR-IDBE2 sy-vline 
WA_T5DCA_STR-BAEIN sy-vline 
WA_T5DCA_STR-IDBAP sy-vline 
WA_T5DCA_STR-IDBA1 sy-vline 
WA_T5DCA_STR-IDBA2 sy-vline 
WA_T5DCA_STR-ANLND sy-vline 
WA_T5DCA_STR-CHKFR sy-vline 
WA_T5DCA_STR-BESGR sy-vline 
WA_T5DCA_STR-BLAGR sy-vline 
WA_T5DCA_STR-RDACV sy-vline 
WA_T5DCA_STR-RELAB sy-vline 
WA_T5DCA_STR-VRLAB sy-vline 
WA_T5DCA_STR-KZABL sy-vline 
WA_T5DCA_STR-KZUMW sy-vline 
WA_T5DCA_STR-BGRRB sy-vline 
WA_T5DCA_STR-ZANSP sy-vline 
WA_T5DCA_STR-KNZZF sy-vline 
WA_T5DCA_STR-ZERTF sy-vline 
WA_T5DCA_STR-BEWUZ sy-vline 
WA_T5DCA_STR-ENDGH sy-vline 
WA_T5DCA_STR-GLRSK sy-vline 
WA_T5DCA_STR-TLREL sy-vline 
WA_T5DCA_STR-VAKMT sy-vline 
WA_T5DCA_STR-RBZUS sy-vline 
WA_T5DCA_STR-ANPPF sy-vline 
WA_T5DCA_STR-FKTUA sy-vline      INTO ld_text SEPARATED BY SPACE.

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