ABAP Select data from SAP table /AIFX/S_LV_DETAILS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /AIFX/S_LV_DETAILS
*  INTO TABLE @DATA(IT_/AIFX/S_LV_DETAILS2).
*--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_/AIFX/S_LV_DETAILS INDEX 1 INTO DATA(WA_/AIFX/S_LV_DETAILS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</AIFX/S_LV_DETAILS>-MSGTY_ICON = 1.
</AIFX/S_LV_DETAILS>-MSGTEXT = 1.
</AIFX/S_LV_DETAILS>-LONGTEXT = 1.
</AIFX/S_LV_DETAILS>-LONGTEXT_ICON_VISIBLE = 1.
</AIFX/S_LV_DETAILS>-LINE_NR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/AIFX/S_LV_DETAILS-ACTIONNR, sy-vline,
  WA_/AIFX/S_LV_DETAILS-NSACTION, sy-vline,
  WA_/AIFX/S_LV_DETAILS-IFACTION, sy-vline,
  WA_/AIFX/S_LV_DETAILS-FUNCNR, sy-vline,
  WA_/AIFX/S_LV_DETAILS-FUNCTION, sy-vline,
  WA_/AIFX/S_LV_DETAILS-SUCCESSFLAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/AIFX/S_LV_DETAILS 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_/AIFX/S_LV_DETAILS 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_/AIFX/S_LV_DETAILS INTO WA_/AIFX/S_LV_DETAILS.


*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 ALPHA, internal->external for field ACTIONNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/AIFX/S_LV_DETAILS-ACTIONNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/AIFX/S_LV_DETAILS-ACTIONNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FUNCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/AIFX/S_LV_DETAILS-FUNCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/AIFX/S_LV_DETAILS-FUNCNR.
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_/AIFX/S_LV_DETAILS_STR, 
MSGTY_ICON TYPE STRING,
MSGTEXT TYPE STRING,
LONGTEXT TYPE STRING,
LONGTEXT_ICON_VISIBLE TYPE STRING,
LINE_NR TYPE STRING,
ACTIONNR TYPE STRING,
NSACTION TYPE STRING,
IFACTION TYPE STRING,
FUNCNR TYPE STRING,
FUNCTION TYPE STRING,
SUCCESSFLAG TYPE STRING,
MAINCOMPONENT TYPE STRING,
SYDATE TYPE STRING,
SYTIME TYPE STRING,
MSG_CATEGORY TYPE STRING,
VMAPNS TYPE STRING,
VMAPNAME TYPE STRING,
NSCHECK TYPE STRING,
AIFCHECK TYPE STRING,
SMAPNR TYPE STRING,
CHECKNR TYPE STRING,
CONDNR TYPE STRING,
RECTYPENR TYPE STRING,
GLOBALROWNR TYPE STRING,
FIELDNAME TYPE STRING,
BAL_S_MSG TYPE STRING,
MSGTY TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
MSGV1_SRC TYPE STRING,
MSGV2_SRC TYPE STRING,
MSGV3_SRC TYPE STRING,
MSGV4_SRC TYPE STRING,
DETLEVEL TYPE STRING,
PROBCLASS TYPE STRING,
ALSORT TYPE STRING,
TIME_STMP TYPE STRING,
MSG_COUNT TYPE STRING,
CONTEXT TYPE STRING,
TABNAME TYPE STRING,
VALUE TYPE STRING,
PARAMS TYPE STRING,
T_PAR TYPE STRING,
CALLBACK TYPE STRING,
USEREXITP TYPE STRING,
USEREXITF TYPE STRING,
USEREXITT TYPE STRING,
ALTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/AIFX/S_LV_DETAILS_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_/AIFX/S_LV_DETAILS_STR-MSGTY_ICON sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGTEXT sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-LONGTEXT sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-LONGTEXT_ICON_VISIBLE sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-LINE_NR sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-ACTIONNR sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-NSACTION sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-IFACTION sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-FUNCNR sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-FUNCTION sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-SUCCESSFLAG sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MAINCOMPONENT sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-SYDATE sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-SYTIME sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSG_CATEGORY sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-VMAPNS sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-VMAPNAME sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-NSCHECK sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-AIFCHECK sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-SMAPNR sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-CHECKNR sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-CONDNR sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-RECTYPENR sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-GLOBALROWNR sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-FIELDNAME sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-BAL_S_MSG sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGTY sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGID sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGNO sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGV1 sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGV2 sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGV3 sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGV4 sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGV1_SRC sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGV2_SRC sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGV3_SRC sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSGV4_SRC sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-DETLEVEL sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-PROBCLASS sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-ALSORT sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-TIME_STMP sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-MSG_COUNT sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-CONTEXT sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-TABNAME sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-VALUE sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-PARAMS sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-T_PAR sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-CALLBACK sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-USEREXITP sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-USEREXITF sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-USEREXITT sy-vline 
WA_/AIFX/S_LV_DETAILS_STR-ALTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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