ABAP Select data from SAP table SM04DIC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SM04DIC 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 SM04DIC. 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 SM04DIC 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_SM04DIC TYPE STANDARD TABLE OF SM04DIC,
      WA_SM04DIC TYPE SM04DIC,
      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: <SM04DIC> TYPE SM04DIC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SM04DIC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SM04DIC
  INTO TABLE IT_SM04DIC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SM04DIC
*  INTO TABLE @DATA(IT_SM04DIC2).
*--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_SM04DIC INDEX 1 INTO DATA(WA_SM04DIC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SM04DIC ASSIGNING <SM04DIC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SM04DIC>-MANDT1 = 1.
<SM04DIC>-MANDT2 = 1.
<SM04DIC>-BNAME1 = 1.
<SM04DIC>-BNAME2 = 1.
<SM04DIC>-TCODE1 = 1.

ENDLOOP.

LOOP AT IT_SM04DIC INTO WA_SM04DIC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SM04DIC-TCODE2, sy-vline,
  WA_SM04DIC-USER_KEY, sy-vline,
  WA_SM04DIC-CONVID, sy-vline,
  WA_SM04DIC-SECUID, sy-vline,
  WA_SM04DIC-SECPWD, sy-vline,
  WA_SM04DIC-SECTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SM04DIC 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_SM04DIC 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_SM04DIC INTO WA_SM04DIC.


*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_SM04DIC_STR, 
MANDT1 TYPE STRING,
MANDT2 TYPE STRING,
BNAME1 TYPE STRING,
BNAME2 TYPE STRING,
TCODE1 TYPE STRING,
TCODE2 TYPE STRING,
USER_KEY TYPE STRING,
CONVID TYPE STRING,
SECUID TYPE STRING,
SECPWD TYPE STRING,
SECTYPE TYPE STRING,
VBSINFO TYPE STRING,
VBGETINFO TYPE STRING,
VBDELINFO TYPE STRING,
VBV2INFO TYPE STRING,
COUNTER TYPE STRING,
TRACECOMPS TYPE STRING,
POPUPMSG TYPE STRING,
WP_TYPE TYPE STRING,
FLAG TYPE STRING,
CLIENT TYPE STRING,
USER TYPE STRING,
POOLED TYPE STRING,
GLOBAL TYPE STRING,
WEBSOCKET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SM04DIC_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_SM04DIC_STR-MANDT1 sy-vline 
WA_SM04DIC_STR-MANDT2 sy-vline 
WA_SM04DIC_STR-BNAME1 sy-vline 
WA_SM04DIC_STR-BNAME2 sy-vline 
WA_SM04DIC_STR-TCODE1 sy-vline 
WA_SM04DIC_STR-TCODE2 sy-vline 
WA_SM04DIC_STR-USER_KEY sy-vline 
WA_SM04DIC_STR-CONVID sy-vline 
WA_SM04DIC_STR-SECUID sy-vline 
WA_SM04DIC_STR-SECPWD sy-vline 
WA_SM04DIC_STR-SECTYPE sy-vline 
WA_SM04DIC_STR-VBSINFO sy-vline 
WA_SM04DIC_STR-VBGETINFO sy-vline 
WA_SM04DIC_STR-VBDELINFO sy-vline 
WA_SM04DIC_STR-VBV2INFO sy-vline 
WA_SM04DIC_STR-COUNTER sy-vline 
WA_SM04DIC_STR-TRACECOMPS sy-vline 
WA_SM04DIC_STR-POPUPMSG sy-vline 
WA_SM04DIC_STR-WP_TYPE sy-vline 
WA_SM04DIC_STR-FLAG sy-vline 
WA_SM04DIC_STR-CLIENT sy-vline 
WA_SM04DIC_STR-USER sy-vline 
WA_SM04DIC_STR-POOLED sy-vline 
WA_SM04DIC_STR-GLOBAL sy-vline 
WA_SM04DIC_STR-WEBSOCKET sy-vline      INTO ld_text SEPARATED BY SPACE.

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