ABAP Select data from SAP table SQADBCON into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SQADBCON
*  INTO TABLE @DATA(IT_SQADBCON2).
*--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_SQADBCON INDEX 1 INTO DATA(WA_SQADBCON2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SQADBCON>-CONTEXT = 1.
<SQADBCON>-FSTUSER = 1.
<SQADBCON>-FSTTSTAMP = 1.
<SQADBCON>-FSTREL = 1.
<SQADBCON>-LSTUSER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SQADBCON-LSTTSTAMP, sy-vline,
  WA_SQADBCON-LSTREL, sy-vline,
  WA_SQADBCON-PRUEFTAB, sy-vline,
  WA_SQADBCON-PRUEFFLD, sy-vline,
  WA_SQADBCON-TEXTTAB, sy-vline,
  WA_SQADBCON-TEXTFLD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SQADBCON 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_SQADBCON 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_SQADBCON INTO WA_SQADBCON.


*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 RELE, internal->external for field FSTREL
CALL FUNCTION 'CONVERSION_EXIT_RELE_OUTPUT'
  EXPORTING
    input =                      WA_SQADBCON-FSTREL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SQADBCON-FSTREL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit RELE, internal->external for field LSTREL
CALL FUNCTION 'CONVERSION_EXIT_RELE_OUTPUT'
  EXPORTING
    input =                      WA_SQADBCON-LSTREL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SQADBCON-LSTREL.
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_SQADBCON_STR, 
CONTEXT TYPE STRING,
FSTUSER TYPE STRING,
FSTTSTAMP TYPE STRING,
FSTREL TYPE STRING,
LSTUSER TYPE STRING,
LSTTSTAMP TYPE STRING,
LSTREL TYPE STRING,
PRUEFTAB TYPE STRING,
PRUEFFLD TYPE STRING,
TEXTTAB TYPE STRING,
TEXTFLD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SQADBCON_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_SQADBCON_STR-CONTEXT sy-vline 
WA_SQADBCON_STR-FSTUSER sy-vline 
WA_SQADBCON_STR-FSTTSTAMP sy-vline 
WA_SQADBCON_STR-FSTREL sy-vline 
WA_SQADBCON_STR-LSTUSER sy-vline 
WA_SQADBCON_STR-LSTTSTAMP sy-vline 
WA_SQADBCON_STR-LSTREL sy-vline 
WA_SQADBCON_STR-PRUEFTAB sy-vline 
WA_SQADBCON_STR-PRUEFFLD sy-vline 
WA_SQADBCON_STR-TEXTTAB sy-vline 
WA_SQADBCON_STR-TEXTFLD sy-vline      INTO ld_text SEPARATED BY SPACE.

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