ABAP Select data from SAP table AMSUR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AMSUR
*  INTO TABLE @DATA(IT_AMSUR2).
*--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_AMSUR INDEX 1 INTO DATA(WA_AMSUR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AMSUR>-PROCGUID = 1.
<AMSUR>-DESTIN = 1.
<AMSUR>-LFNUM = 1.
<AMSUR>-ASCHEMA = 1.
<AMSUR>-AOBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AMSUR-TOTALEXEC, sy-vline,
  WA_AMSUR-EXECTIME, sy-vline,
  WA_AMSUR-RECPROCNUM, sy-vline,
  WA_AMSUR-WPROCTIME, sy-vline,
  WA_AMSUR-KBYTETRANS, sy-vline,
  WA_AMSUR-RESPTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AMSUR 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_AMSUR 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_AMSUR INTO WA_AMSUR.


*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_AMSUR_STR, 
PROCGUID TYPE STRING,
DESTIN TYPE STRING,
LFNUM TYPE STRING,
ASCHEMA TYPE STRING,
AOBJECT TYPE STRING,
TOTALEXEC TYPE STRING,
EXECTIME TYPE STRING,
RECPROCNUM TYPE STRING,
WPROCTIME TYPE STRING,
KBYTETRANS TYPE STRING,
RESPTIME TYPE STRING,
WAITTIME TYPE STRING,
CPUTIME TYPE STRING,
LDGENTIME TYPE STRING,
MEMORYUSED TYPE STRING,
DBTIME TYPE STRING,
DBCHANGES TYPE STRING,
ROUNDTRIPS TYPE STRING,
INOUTDATA TYPE STRING,
INDATA TYPE STRING,
OUTDATA TYPE STRING,
TOTALEX_ST TYPE STRING,
RECPROCNUM_ST TYPE STRING,
TOTALEXEC_SAW TYPE STRING,
EXECTIME_SAW TYPE STRING,
RECPROCNUM_SAW TYPE STRING,
WPROCTIME_SAW TYPE STRING,
KBYTETRANS_SAW TYPE STRING,
RESPTIME_SAW TYPE STRING,
WAITTIME_SAW TYPE STRING,
CPUTIME_SAW TYPE STRING,
LDGENTIME_SAW TYPE STRING,
MEMORYUSED_SAW TYPE STRING,
DBTIME_SAW TYPE STRING,
DBCHANGES_SAW TYPE STRING,
ROUNDTRIPS_SAW TYPE STRING,
INDATA_SAW TYPE STRING,
OUTDATA_SAW TYPE STRING,
TOTALEX_ST_SAW TYPE STRING,
RECPROCNUM_STSAW TYPE STRING,
STEXTKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AMSUR_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_AMSUR_STR-PROCGUID sy-vline 
WA_AMSUR_STR-DESTIN sy-vline 
WA_AMSUR_STR-LFNUM sy-vline 
WA_AMSUR_STR-ASCHEMA sy-vline 
WA_AMSUR_STR-AOBJECT sy-vline 
WA_AMSUR_STR-TOTALEXEC sy-vline 
WA_AMSUR_STR-EXECTIME sy-vline 
WA_AMSUR_STR-RECPROCNUM sy-vline 
WA_AMSUR_STR-WPROCTIME sy-vline 
WA_AMSUR_STR-KBYTETRANS sy-vline 
WA_AMSUR_STR-RESPTIME sy-vline 
WA_AMSUR_STR-WAITTIME sy-vline 
WA_AMSUR_STR-CPUTIME sy-vline 
WA_AMSUR_STR-LDGENTIME sy-vline 
WA_AMSUR_STR-MEMORYUSED sy-vline 
WA_AMSUR_STR-DBTIME sy-vline 
WA_AMSUR_STR-DBCHANGES sy-vline 
WA_AMSUR_STR-ROUNDTRIPS sy-vline 
WA_AMSUR_STR-INOUTDATA sy-vline 
WA_AMSUR_STR-INDATA sy-vline 
WA_AMSUR_STR-OUTDATA sy-vline 
WA_AMSUR_STR-TOTALEX_ST sy-vline 
WA_AMSUR_STR-RECPROCNUM_ST sy-vline 
WA_AMSUR_STR-TOTALEXEC_SAW sy-vline 
WA_AMSUR_STR-EXECTIME_SAW sy-vline 
WA_AMSUR_STR-RECPROCNUM_SAW sy-vline 
WA_AMSUR_STR-WPROCTIME_SAW sy-vline 
WA_AMSUR_STR-KBYTETRANS_SAW sy-vline 
WA_AMSUR_STR-RESPTIME_SAW sy-vline 
WA_AMSUR_STR-WAITTIME_SAW sy-vline 
WA_AMSUR_STR-CPUTIME_SAW sy-vline 
WA_AMSUR_STR-LDGENTIME_SAW sy-vline 
WA_AMSUR_STR-MEMORYUSED_SAW sy-vline 
WA_AMSUR_STR-DBTIME_SAW sy-vline 
WA_AMSUR_STR-DBCHANGES_SAW sy-vline 
WA_AMSUR_STR-ROUNDTRIPS_SAW sy-vline 
WA_AMSUR_STR-INDATA_SAW sy-vline 
WA_AMSUR_STR-OUTDATA_SAW sy-vline 
WA_AMSUR_STR-TOTALEX_ST_SAW sy-vline 
WA_AMSUR_STR-RECPROCNUM_STSAW sy-vline 
WA_AMSUR_STR-STEXTKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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