ABAP Select data from SAP table T5DB4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T5DB4 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 T5DB4. 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 T5DB4 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_T5DB4 TYPE STANDARD TABLE OF T5DB4,
      WA_T5DB4 TYPE T5DB4,
      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: <T5DB4> TYPE T5DB4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T5DB4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T5DB4
  INTO TABLE IT_T5DB4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T5DB4
*  INTO TABLE @DATA(IT_T5DB42).
*--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_T5DB4 INDEX 1 INTO DATA(WA_T5DB42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T5DB4 ASSIGNING <T5DB4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T5DB4>-MANDT = 1.
<T5DB4>-BAUID = 1.
<T5DB4>-POSNR = 1.
<T5DB4>-AUFNR = 1.
<T5DB4>-KOKRS = 1.

ENDLOOP.

LOOP AT IT_T5DB4 INTO WA_T5DB4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T5DB4-KOSTL, sy-vline,
  WA_T5DB4-NPLNR, sy-vline,
  WA_T5DB4-VORNR, sy-vline,
  WA_T5DB4-KDAUF, sy-vline,
  WA_T5DB4-KDPOS, sy-vline,
  WA_T5DB4-KSTRG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T5DB4 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_T5DB4 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_T5DB4 INTO WA_T5DB4.


*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.

*Conversion exit ABPSP, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_T5DB4-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T5DB4-POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T5DB4-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T5DB4-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T5DB4-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T5DB4-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T5DB4-NPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T5DB4-NPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_T5DB4-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T5DB4-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T5DB4-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T5DB4-KDAUF.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_T5DB4_STR, 
MANDT TYPE STRING,
BAUID TYPE STRING,
POSNR TYPE STRING,
AUFNR TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KSTRG TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
AEDTM TYPE STRING,
AENAM TYPE STRING,
BENDD TYPE STRING,
BBEGD TYPE STRING,
BALEI TYPE STRING,
PERNR TYPE STRING,
GMDN1 TYPE STRING,
GMDP1 TYPE STRING,
GMDN2 TYPE STRING,
GMDP2 TYPE STRING,
GMDN3 TYPE STRING,
GMDP3 TYPE STRING,
BULND TYPE STRING,
STSPA TYPE STRING,
BRFGN TYPE STRING,
GFTGE TYPE STRING,
GFTAN TYPE STRING,
BRFGP TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
ORT02 TYPE STRING,
PSTLZ TYPE STRING,
LAND1 TYPE STRING,
TELNR TYPE STRING,
MOFID TYPE STRING,
BASCH TYPE STRING,
MEHKN TYPE STRING,
RUEST TYPE STRING,
BSA01 TYPE STRING,
BSA02 TYPE STRING,
BSA03 TYPE STRING,
BSA04 TYPE STRING,
BSA05 TYPE STRING,
BSA06 TYPE STRING,
BSA07 TYPE STRING,
BSA08 TYPE STRING,
ARGEN TYPE STRING,
BGKAG TYPE STRING,
BGKGW TYPE STRING,
REIZI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T5DB4_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_T5DB4_STR-MANDT sy-vline 
WA_T5DB4_STR-BAUID sy-vline 
WA_T5DB4_STR-POSNR sy-vline 
WA_T5DB4_STR-AUFNR sy-vline 
WA_T5DB4_STR-KOKRS sy-vline 
WA_T5DB4_STR-KOSTL sy-vline 
WA_T5DB4_STR-NPLNR sy-vline 
WA_T5DB4_STR-VORNR sy-vline 
WA_T5DB4_STR-KDAUF sy-vline 
WA_T5DB4_STR-KDPOS sy-vline 
WA_T5DB4_STR-KSTRG sy-vline 
WA_T5DB4_STR-ENDDA sy-vline 
WA_T5DB4_STR-BEGDA sy-vline 
WA_T5DB4_STR-AEDTM sy-vline 
WA_T5DB4_STR-AENAM sy-vline 
WA_T5DB4_STR-BENDD sy-vline 
WA_T5DB4_STR-BBEGD sy-vline 
WA_T5DB4_STR-BALEI sy-vline 
WA_T5DB4_STR-PERNR sy-vline 
WA_T5DB4_STR-GMDN1 sy-vline 
WA_T5DB4_STR-GMDP1 sy-vline 
WA_T5DB4_STR-GMDN2 sy-vline 
WA_T5DB4_STR-GMDP2 sy-vline 
WA_T5DB4_STR-GMDN3 sy-vline 
WA_T5DB4_STR-GMDP3 sy-vline 
WA_T5DB4_STR-BULND sy-vline 
WA_T5DB4_STR-STSPA sy-vline 
WA_T5DB4_STR-BRFGN sy-vline 
WA_T5DB4_STR-GFTGE sy-vline 
WA_T5DB4_STR-GFTAN sy-vline 
WA_T5DB4_STR-BRFGP sy-vline 
WA_T5DB4_STR-STRAS sy-vline 
WA_T5DB4_STR-ORT01 sy-vline 
WA_T5DB4_STR-ORT02 sy-vline 
WA_T5DB4_STR-PSTLZ sy-vline 
WA_T5DB4_STR-LAND1 sy-vline 
WA_T5DB4_STR-TELNR sy-vline 
WA_T5DB4_STR-MOFID sy-vline 
WA_T5DB4_STR-BASCH sy-vline 
WA_T5DB4_STR-MEHKN sy-vline 
WA_T5DB4_STR-RUEST sy-vline 
WA_T5DB4_STR-BSA01 sy-vline 
WA_T5DB4_STR-BSA02 sy-vline 
WA_T5DB4_STR-BSA03 sy-vline 
WA_T5DB4_STR-BSA04 sy-vline 
WA_T5DB4_STR-BSA05 sy-vline 
WA_T5DB4_STR-BSA06 sy-vline 
WA_T5DB4_STR-BSA07 sy-vline 
WA_T5DB4_STR-BSA08 sy-vline 
WA_T5DB4_STR-ARGEN sy-vline 
WA_T5DB4_STR-BGKAG sy-vline 
WA_T5DB4_STR-BGKGW sy-vline 
WA_T5DB4_STR-REIZI sy-vline      INTO ld_text SEPARATED BY SPACE.

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