ABAP Select data from SAP table T169P into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T169P 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 T169P. 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 T169P 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_T169P TYPE STANDARD TABLE OF T169P,
      WA_T169P TYPE T169P,
      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: <T169P> TYPE T169P.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T169P.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T169P
  INTO TABLE IT_T169P.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T169P
*  INTO TABLE @DATA(IT_T169P2).
*--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_T169P INDEX 1 INTO DATA(WA_T169P2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T169P ASSIGNING <T169P>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T169P>-MANDT = 1.
<T169P>-BUKRS = 1.
<T169P>-XEKAN = 1.
<T169P>-XMAIL = 1.
<T169P>-XSPST = 1.

ENDLOOP.

LOOP AT IT_T169P INTO WA_T169P.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T169P-XSPSO, sy-vline,
  WA_T169P-BTSTO, sy-vline,
  WA_T169P-PRSTO, sy-vline,
  WA_T169P-TAX_DYNNR, sy-vline,
  WA_T169P-AB_DYNNR, sy-vline,
  WA_T169P-PRAVT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T169P 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_T169P 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_T169P INTO WA_T169P.


*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_T169P_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
XEKAN TYPE STRING,
XMAIL TYPE STRING,
XSPST TYPE STRING,
XSPSO TYPE STRING,
BTSTO TYPE STRING,
PRSTO TYPE STRING,
TAX_DYNNR TYPE STRING,
AB_DYNNR TYPE STRING,
PRAVT TYPE STRING,
XKOERL TYPE STRING,
BNK TYPE STRING,
XPLCU TYPE STRING,
KURST TYPE STRING,
XLOGO TYPE STRING,
URL TYPE STRING,
XBUKRS TYPE STRING,
XBLDAT TYPE STRING,
XXBLNR TYPE STRING,
IRTAX TYPE STRING,
CTHW TYPE STRING,
KDHW TYPE STRING,
CTML1 TYPE STRING,
KDML1 TYPE STRING,
CTML2 TYPE STRING,
KDML2 TYPE STRING,
RETDUEDATE TYPE STRING,
RETUMSKZ TYPE STRING,
RETWHTAX TYPE STRING,
INV_CHANGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T169P_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_T169P_STR-MANDT sy-vline 
WA_T169P_STR-BUKRS sy-vline 
WA_T169P_STR-XEKAN sy-vline 
WA_T169P_STR-XMAIL sy-vline 
WA_T169P_STR-XSPST sy-vline 
WA_T169P_STR-XSPSO sy-vline 
WA_T169P_STR-BTSTO sy-vline 
WA_T169P_STR-PRSTO sy-vline 
WA_T169P_STR-TAX_DYNNR sy-vline 
WA_T169P_STR-AB_DYNNR sy-vline 
WA_T169P_STR-PRAVT sy-vline 
WA_T169P_STR-XKOERL sy-vline 
WA_T169P_STR-BNK sy-vline 
WA_T169P_STR-XPLCU sy-vline 
WA_T169P_STR-KURST sy-vline 
WA_T169P_STR-XLOGO sy-vline 
WA_T169P_STR-URL sy-vline 
WA_T169P_STR-XBUKRS sy-vline 
WA_T169P_STR-XBLDAT sy-vline 
WA_T169P_STR-XXBLNR sy-vline 
WA_T169P_STR-IRTAX sy-vline 
WA_T169P_STR-CTHW sy-vline 
WA_T169P_STR-KDHW sy-vline 
WA_T169P_STR-CTML1 sy-vline 
WA_T169P_STR-KDML1 sy-vline 
WA_T169P_STR-CTML2 sy-vline 
WA_T169P_STR-KDML2 sy-vline 
WA_T169P_STR-RETDUEDATE sy-vline 
WA_T169P_STR-RETUMSKZ sy-vline 
WA_T169P_STR-RETWHTAX sy-vline 
WA_T169P_STR-INV_CHANGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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