ABAP Select data from SAP table /AIF/ADMIN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /AIF/ADMIN 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 /AIF/ADMIN. 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 /AIF/ADMIN 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_/AIF/ADMIN TYPE STANDARD TABLE OF /AIF/ADMIN,
      WA_/AIF/ADMIN TYPE /AIF/ADMIN,
      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: </AIF/ADMIN> TYPE /AIF/ADMIN.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /AIF/ADMIN
  INTO TABLE IT_/AIF/ADMIN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /AIF/ADMIN
*  INTO TABLE @DATA(IT_/AIF/ADMIN2).
*--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_/AIF/ADMIN INDEX 1 INTO DATA(WA_/AIF/ADMIN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/AIF/ADMIN ASSIGNING </AIF/ADMIN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</AIF/ADMIN>-NUMBEROFABORTS = 1.
</AIF/ADMIN>-NUMBEROFERRORS = 1.
</AIF/ADMIN>-NUMBEROFWARNINGS = 1.
</AIF/ADMIN>-NUMBEROFSUCCESS = 1.
</AIF/ADMIN>-NUMBEROFINFOS = 1.

ENDLOOP.

LOOP AT IT_/AIF/ADMIN INTO WA_/AIF/ADMIN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/AIF/ADMIN-NSRECIP, sy-vline,
  WA_/AIF/ADMIN-RECIPIENT, sy-vline,
  WA_/AIF/ADMIN-STATUS, sy-vline,
  WA_/AIF/ADMIN-SUB_STATUS, sy-vline,
  WA_/AIF/ADMIN-AIF_LOCATION, sy-vline,
  WA_/AIF/ADMIN-LOGNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/AIF/ADMIN 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_/AIF/ADMIN 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_/AIF/ADMIN INTO WA_/AIF/ADMIN.


*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_/AIF/ADMIN_STR, 
NUMBEROFABORTS TYPE STRING,
NUMBEROFERRORS TYPE STRING,
NUMBEROFWARNINGS TYPE STRING,
NUMBEROFSUCCESS TYPE STRING,
NUMBEROFINFOS TYPE STRING,
NSRECIP TYPE STRING,
RECIPIENT TYPE STRING,
STATUS TYPE STRING,
SUB_STATUS TYPE STRING,
AIF_LOCATION TYPE STRING,
LOGNUMBER TYPE STRING,
TRACE_LEVEL TYPE STRING,
TL_EXP_DATE TYPE STRING,
TL_EXP_TIME TYPE STRING,
CREATE_USER TYPE STRING,
CREATE_DATE TYPE STRING,
CREATE_TIME TYPE STRING,
LAST_USER TYPE STRING,
LAST_DATE TYPE STRING,
LAST_TIME TYPE STRING,
END_USER TYPE STRING,
END_DATE TYPE STRING,
END_TIME TYPE STRING,
AIF_ALERT_ID TYPE STRING,
AIF_VARIANT_NS TYPE STRING,
AIF_VARIANT_NAME TYPE STRING,
EXTERNAL_MESSAGE TYPE STRING,
TIME_ZONE TYPE STRING,
PROCESSING_END_TSTMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/AIF/ADMIN_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_/AIF/ADMIN_STR-NUMBEROFABORTS sy-vline 
WA_/AIF/ADMIN_STR-NUMBEROFERRORS sy-vline 
WA_/AIF/ADMIN_STR-NUMBEROFWARNINGS sy-vline 
WA_/AIF/ADMIN_STR-NUMBEROFSUCCESS sy-vline 
WA_/AIF/ADMIN_STR-NUMBEROFINFOS sy-vline 
WA_/AIF/ADMIN_STR-NSRECIP sy-vline 
WA_/AIF/ADMIN_STR-RECIPIENT sy-vline 
WA_/AIF/ADMIN_STR-STATUS sy-vline 
WA_/AIF/ADMIN_STR-SUB_STATUS sy-vline 
WA_/AIF/ADMIN_STR-AIF_LOCATION sy-vline 
WA_/AIF/ADMIN_STR-LOGNUMBER sy-vline 
WA_/AIF/ADMIN_STR-TRACE_LEVEL sy-vline 
WA_/AIF/ADMIN_STR-TL_EXP_DATE sy-vline 
WA_/AIF/ADMIN_STR-TL_EXP_TIME sy-vline 
WA_/AIF/ADMIN_STR-CREATE_USER sy-vline 
WA_/AIF/ADMIN_STR-CREATE_DATE sy-vline 
WA_/AIF/ADMIN_STR-CREATE_TIME sy-vline 
WA_/AIF/ADMIN_STR-LAST_USER sy-vline 
WA_/AIF/ADMIN_STR-LAST_DATE sy-vline 
WA_/AIF/ADMIN_STR-LAST_TIME sy-vline 
WA_/AIF/ADMIN_STR-END_USER sy-vline 
WA_/AIF/ADMIN_STR-END_DATE sy-vline 
WA_/AIF/ADMIN_STR-END_TIME sy-vline 
WA_/AIF/ADMIN_STR-AIF_ALERT_ID sy-vline 
WA_/AIF/ADMIN_STR-AIF_VARIANT_NS sy-vline 
WA_/AIF/ADMIN_STR-AIF_VARIANT_NAME sy-vline 
WA_/AIF/ADMIN_STR-EXTERNAL_MESSAGE sy-vline 
WA_/AIF/ADMIN_STR-TIME_ZONE sy-vline 
WA_/AIF/ADMIN_STR-PROCESSING_END_TSTMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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