ABAP Select data from SAP table SQADBCONV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SQADBCONV
*  INTO TABLE @DATA(IT_SQADBCONV2).
*--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_SQADBCONV INDEX 1 INTO DATA(WA_SQADBCONV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SQADBCONV>-QUEID = 1.
<SQADBCONV>-CONTEXT = 1.
<SQADBCONV>-VALIDITY = 1.
<SQADBCONV>-FSTUSER = 1.
<SQADBCONV>-FSTTSTAMP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SQADBCONV-FSTREL, sy-vline,
  WA_SQADBCONV-LSTUSER, sy-vline,
  WA_SQADBCONV-LSTTSTAMP, sy-vline,
  WA_SQADBCONV-LSTREL, sy-vline,
  WA_SQADBCONV-PRUEFTAB, sy-vline,
  WA_SQADBCONV-PRUEFFLD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SQADBCONV 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_SQADBCONV 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_SQADBCONV INTO WA_SQADBCONV.


*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_SQADBCONV-FSTREL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SQADBCONV-FSTREL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SQADBCONV-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SQADBCONV-LANGU.
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_SQADBCONV_STR, 
QUEID TYPE STRING,
CONTEXT TYPE STRING,
VALIDITY 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,
LANGU TYPE STRING,
CTEXT TYPE STRING,
VALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SQADBCONV_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_SQADBCONV_STR-QUEID sy-vline 
WA_SQADBCONV_STR-CONTEXT sy-vline 
WA_SQADBCONV_STR-VALIDITY sy-vline 
WA_SQADBCONV_STR-FSTUSER sy-vline 
WA_SQADBCONV_STR-FSTTSTAMP sy-vline 
WA_SQADBCONV_STR-FSTREL sy-vline 
WA_SQADBCONV_STR-LSTUSER sy-vline 
WA_SQADBCONV_STR-LSTTSTAMP sy-vline 
WA_SQADBCONV_STR-LSTREL sy-vline 
WA_SQADBCONV_STR-PRUEFTAB sy-vline 
WA_SQADBCONV_STR-PRUEFFLD sy-vline 
WA_SQADBCONV_STR-TEXTTAB sy-vline 
WA_SQADBCONV_STR-TEXTFLD sy-vline 
WA_SQADBCONV_STR-LANGU sy-vline 
WA_SQADBCONV_STR-CTEXT sy-vline 
WA_SQADBCONV_STR-VALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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