ABAP Select data from SAP table T5KV1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T5KV1 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 T5KV1. 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 T5KV1 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_T5KV1 TYPE STANDARD TABLE OF T5KV1,
      WA_T5KV1 TYPE T5KV1,
      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: <T5KV1> TYPE T5KV1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T5KV1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T5KV1
  INTO TABLE IT_T5KV1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T5KV1
*  INTO TABLE @DATA(IT_T5KV12).
*--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_T5KV1 INDEX 1 INTO DATA(WA_T5KV12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T5KV1 ASSIGNING <T5KV1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T5KV1>-MANDT = 1.
<T5KV1>-GRPVP = 1.
<T5KV1>-ENDDA = 1.
<T5KV1>-BEGDA = 1.
<T5KV1>-PCNTC = 1.

ENDLOOP.

LOOP AT IT_T5KV1 INTO WA_T5KV1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T5KV1-PCNTP, sy-vline,
  WA_T5KV1-LVTYP, sy-vline,
  WA_T5KV1-LVTP1, sy-vline,
  WA_T5KV1-LVTP2, sy-vline,
  WA_T5KV1-LVTP3, sy-vline,
  WA_T5KV1-LVTP4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T5KV1 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_T5KV1 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_T5KV1 INTO WA_T5KV1.


*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_T5KV1_STR, 
MANDT TYPE STRING,
GRPVP TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
PCNTC TYPE STRING,
PCNTP TYPE STRING,
LVTYP TYPE STRING,
LVTP1 TYPE STRING,
LVTP2 TYPE STRING,
LVTP3 TYPE STRING,
LVTP4 TYPE STRING,
LVTP5 TYPE STRING,
LVTPA TYPE STRING,
LVTPB TYPE STRING,
LVTPC TYPE STRING,
PAYIV TYPE STRING,
PAYIT TYPE STRING,
GRPWT TYPE STRING,
GRPAY TYPE STRING,
CMPAI TYPE STRING,
VALBS TYPE STRING,
ABSTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T5KV1_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_T5KV1_STR-MANDT sy-vline 
WA_T5KV1_STR-GRPVP sy-vline 
WA_T5KV1_STR-ENDDA sy-vline 
WA_T5KV1_STR-BEGDA sy-vline 
WA_T5KV1_STR-PCNTC sy-vline 
WA_T5KV1_STR-PCNTP sy-vline 
WA_T5KV1_STR-LVTYP sy-vline 
WA_T5KV1_STR-LVTP1 sy-vline 
WA_T5KV1_STR-LVTP2 sy-vline 
WA_T5KV1_STR-LVTP3 sy-vline 
WA_T5KV1_STR-LVTP4 sy-vline 
WA_T5KV1_STR-LVTP5 sy-vline 
WA_T5KV1_STR-LVTPA sy-vline 
WA_T5KV1_STR-LVTPB sy-vline 
WA_T5KV1_STR-LVTPC sy-vline 
WA_T5KV1_STR-PAYIV sy-vline 
WA_T5KV1_STR-PAYIT sy-vline 
WA_T5KV1_STR-GRPWT sy-vline 
WA_T5KV1_STR-GRPAY sy-vline 
WA_T5KV1_STR-CMPAI sy-vline 
WA_T5KV1_STR-VALBS sy-vline 
WA_T5KV1_STR-ABSTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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