ABAP Select data from SAP table /BSNAGT/STR_TEMSE_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BSNAGT/STR_TEMSE_ALV
*  INTO TABLE @DATA(IT_/BSNAGT/STR_TEMSE_ALV2).
*--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_/BSNAGT/STR_TEMSE_ALV INDEX 1 INTO DATA(WA_/BSNAGT/STR_TEMSE_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BSNAGT/STR_TEMSE_ALV>-ZBUKR = 1.
</BSNAGT/STR_TEMSE_ALV>-BANKS = 1.
</BSNAGT/STR_TEMSE_ALV>-LAUFD = 1.
</BSNAGT/STR_TEMSE_ALV>-LAUFI = 1.
</BSNAGT/STR_TEMSE_ALV>-XVORL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BSNAGT/STR_TEMSE_ALV-DTKEY, sy-vline,
  WA_/BSNAGT/STR_TEMSE_ALV-LFDNR, sy-vline,
  WA_/BSNAGT/STR_TEMSE_ALV-WAERS, sy-vline,
  WA_/BSNAGT/STR_TEMSE_ALV-RBETR, sy-vline,
  WA_/BSNAGT/STR_TEMSE_ALV-RENUM, sy-vline,
  WA_/BSNAGT/STR_TEMSE_ALV-DTFOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BSNAGT/STR_TEMSE_ALV 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_/BSNAGT/STR_TEMSE_ALV 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_/BSNAGT/STR_TEMSE_ALV INTO WA_/BSNAGT/STR_TEMSE_ALV.


*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 AC132, internal->external for field RBETR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_/BSNAGT/STR_TEMSE_ALV-RBETR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BSNAGT/STR_TEMSE_ALV-RBETR.
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_/BSNAGT/STR_TEMSE_ALV_STR, 
ZBUKR TYPE STRING,
BANKS TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
XVORL TYPE STRING,
DTKEY TYPE STRING,
LFDNR TYPE STRING,
WAERS TYPE STRING,
RBETR TYPE STRING,
RENUM TYPE STRING,
DTFOR TYPE STRING,
TSNAM TYPE STRING,
TSDAT TYPE STRING,
TSTIM TYPE STRING,
TSUSR TYPE STRING,
DWNAM TYPE STRING,
DWDAT TYPE STRING,
DWTIM TYPE STRING,
DWUSR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BSNAGT/STR_TEMSE_ALV_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_/BSNAGT/STR_TEMSE_ALV_STR-ZBUKR sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-BANKS sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-LAUFD sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-LAUFI sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-XVORL sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-DTKEY sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-LFDNR sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-WAERS sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-RBETR sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-RENUM sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-DTFOR sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-TSNAM sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-TSDAT sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-TSTIM sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-TSUSR sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-DWNAM sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-DWDAT sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-DWTIM sy-vline 
WA_/BSNAGT/STR_TEMSE_ALV_STR-DWUSR sy-vline      INTO ld_text SEPARATED BY SPACE.

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