ABAP Select data from SAP table SQADBREV_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SQADBREV_S
*  INTO TABLE @DATA(IT_SQADBREV_S2).
*--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_SQADBREV_S INDEX 1 INTO DATA(WA_SQADBREV_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SQADBREV_S>-QUEID = 1.
<SQADBREV_S>-ANSWERTYPE = 1.
<SQADBREV_S>-ANSGLOBAL = 1.
<SQADBREV_S>-FSTUSER = 1.
<SQADBREV_S>-FSTTSTAMP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SQADBREV_S-FSTREL, sy-vline,
  WA_SQADBREV_S-LSTUSER, sy-vline,
  WA_SQADBREV_S-LSTTSTAMP, sy-vline,
  WA_SQADBREV_S-LSTREL, sy-vline,
  WA_SQADBREV_S-CHTAB, sy-vline,
  WA_SQADBREV_S-CHFIELD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SQADBREV_S 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_SQADBREV_S 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_SQADBREV_S INTO WA_SQADBREV_S.


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

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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SQADBREV_S-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SQADBREV_S-LANGU.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field SUBJECT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SQADBREV_S-SUBJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SQADBREV_S-SUBJECT.
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_SQADBREV_S_STR, 
QUEID TYPE STRING,
ANSWERTYPE TYPE STRING,
ANSGLOBAL TYPE STRING,
FSTUSER TYPE STRING,
FSTTSTAMP TYPE STRING,
FSTREL TYPE STRING,
LSTUSER TYPE STRING,
LSTTSTAMP TYPE STRING,
LSTREL TYPE STRING,
CHTAB TYPE STRING,
CHFIELD TYPE STRING,
STATUS TYPE STRING,
LANGU TYPE STRING,
ADDON TYPE STRING,
QTEXT TYPE STRING,
PROB TYPE STRING,
PRIO TYPE STRING,
USAG TYPE STRING,
AGENDA TYPE STRING,
SUBJAREA TYPE STRING,
SUBJECT TYPE STRING,
MEMO TYPE STRING,
FSTDATE TYPE STRING,
FSTTIME TYPE STRING,
LSTDATE TYPE STRING,
LSTTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SQADBREV_S_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_SQADBREV_S_STR-QUEID sy-vline 
WA_SQADBREV_S_STR-ANSWERTYPE sy-vline 
WA_SQADBREV_S_STR-ANSGLOBAL sy-vline 
WA_SQADBREV_S_STR-FSTUSER sy-vline 
WA_SQADBREV_S_STR-FSTTSTAMP sy-vline 
WA_SQADBREV_S_STR-FSTREL sy-vline 
WA_SQADBREV_S_STR-LSTUSER sy-vline 
WA_SQADBREV_S_STR-LSTTSTAMP sy-vline 
WA_SQADBREV_S_STR-LSTREL sy-vline 
WA_SQADBREV_S_STR-CHTAB sy-vline 
WA_SQADBREV_S_STR-CHFIELD sy-vline 
WA_SQADBREV_S_STR-STATUS sy-vline 
WA_SQADBREV_S_STR-LANGU sy-vline 
WA_SQADBREV_S_STR-ADDON sy-vline 
WA_SQADBREV_S_STR-QTEXT sy-vline 
WA_SQADBREV_S_STR-PROB sy-vline 
WA_SQADBREV_S_STR-PRIO sy-vline 
WA_SQADBREV_S_STR-USAG sy-vline 
WA_SQADBREV_S_STR-AGENDA sy-vline 
WA_SQADBREV_S_STR-SUBJAREA sy-vline 
WA_SQADBREV_S_STR-SUBJECT sy-vline 
WA_SQADBREV_S_STR-MEMO sy-vline 
WA_SQADBREV_S_STR-FSTDATE sy-vline 
WA_SQADBREV_S_STR-FSTTIME sy-vline 
WA_SQADBREV_S_STR-LSTDATE sy-vline 
WA_SQADBREV_S_STR-LSTTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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