ABAP Select data from SAP table ALPFUTIL_REPDBAVLEXTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ALPFUTIL_REPDBAVLEXTR
*  INTO TABLE @DATA(IT_ALPFUTIL_REPDBAVLEXTR2).
*--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_ALPFUTIL_REPDBAVLEXTR INDEX 1 INTO DATA(WA_ALPFUTIL_REPDBAVLEXTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ALPFUTIL_REPDBAVLEXTR>-REPORTNAME = 1.
<ALPFUTIL_REPDBAVLEXTR>-GROUPID = 1.
<ALPFUTIL_REPDBAVLEXTR>-REPORTDATE = 1.
<ALPFUTIL_REPDBAVLEXTR>-REPORTTIME = 1.
<ALPFUTIL_REPDBAVLEXTR>-USERNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ALPFUTIL_REPDBAVLEXTR-GROUPNAME, sy-vline,
  WA_ALPFUTIL_REPDBAVLEXTR-OPERATION, sy-vline,
  WA_ALPFUTIL_REPDBAVLEXTR-OPERATION_TXT, sy-vline,
  WA_ALPFUTIL_REPDBAVLEXTR-START_DATE, sy-vline,
  WA_ALPFUTIL_REPDBAVLEXTR-START_TIME, sy-vline,
  WA_ALPFUTIL_REPDBAVLEXTR-END_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ALPFUTIL_REPDBAVLEXTR 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_ALPFUTIL_REPDBAVLEXTR 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_ALPFUTIL_REPDBAVLEXTR INTO WA_ALPFUTIL_REPDBAVLEXTR.


*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 ISOLA, internal->external for field SPRSL
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ALPFUTIL_REPDBAVLEXTR-SPRSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ALPFUTIL_REPDBAVLEXTR-SPRSL.
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_ALPFUTIL_REPDBAVLEXTR_STR, 
REPORTNAME TYPE STRING,
GROUPID TYPE STRING,
REPORTDATE TYPE STRING,
REPORTTIME TYPE STRING,
USERNAME TYPE STRING,
GROUPNAME TYPE STRING,
OPERATION TYPE STRING,
OPERATION_TXT TYPE STRING,
START_DATE TYPE STRING,
START_TIME TYPE STRING,
END_DATE TYPE STRING,
END_TIME TYPE STRING,
RECTYPE TYPE STRING,
AGGREGATTYPE TYPE STRING,
RESOLUTION TYPE STRING,
PF_TIMEZONE TYPE STRING,
SFTNAME TYPE STRING,
CALNAME TYPE STRING,
VALTYPE TYPE STRING,
VALTYPE_TXT TYPE STRING,
VALUNIT TYPE STRING,
DECIMALS TYPE STRING,
OUT_DIM TYPE STRING,
OUT_DIM_TXT TYPE STRING,
REPDEF TYPE STRING,
REPDESCR TYPE STRING,
SPRSL TYPE STRING,
OBJECT_CNT TYPE STRING,
MTSYSID TYPE STRING,
MTMCNAME TYPE STRING,
MTNUMRANGE TYPE STRING,
MTUID TYPE STRING,
MTCLASS TYPE STRING,
OBJNAME TYPE STRING,
ATTRNAME TYPE STRING,
MTECLASS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ALPFUTIL_REPDBAVLEXTR_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_ALPFUTIL_REPDBAVLEXTR_STR-REPORTNAME sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-GROUPID sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-REPORTDATE sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-REPORTTIME sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-USERNAME sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-GROUPNAME sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-OPERATION sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-OPERATION_TXT sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-START_DATE sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-START_TIME sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-END_DATE sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-END_TIME sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-RECTYPE sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-AGGREGATTYPE sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-RESOLUTION sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-PF_TIMEZONE sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-SFTNAME sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-CALNAME sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-VALTYPE sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-VALTYPE_TXT sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-VALUNIT sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-DECIMALS sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-OUT_DIM sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-OUT_DIM_TXT sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-REPDEF sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-REPDESCR sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-SPRSL sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-OBJECT_CNT sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-MTSYSID sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-MTMCNAME sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-MTNUMRANGE sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-MTUID sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-MTCLASS sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-OBJNAME sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-ATTRNAME sy-vline 
WA_ALPFUTIL_REPDBAVLEXTR_STR-MTECLASS sy-vline      INTO ld_text SEPARATED BY SPACE.

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