ABAP Select data from SAP table TEMUS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TEMUS
*  INTO TABLE @DATA(IT_TEMUS2).
*--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_TEMUS INDEX 1 INTO DATA(WA_TEMUS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TEMUS>-MANDT = 1.
<TEMUS>-UNAME = 1.
<TEMUS>-FIRMA = 1.
<TEMUS>-JMP_FIRMA = 1.
<TEMUS>-OBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TEMUS-CHANGE_STATUS, sy-vline,
  WA_TEMUS-N_NAME, sy-vline,
  WA_TEMUS-INPSTRUCT, sy-vline,
  WA_TEMUS-FIELD, sy-vline,
  WA_TEMUS-VARNAME, sy-vline,
  WA_TEMUS-SERVER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TEMUS 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_TEMUS 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_TEMUS INTO WA_TEMUS.


*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_TEMUS_STR, 
MANDT TYPE STRING,
UNAME TYPE STRING,
FIRMA TYPE STRING,
JMP_FIRMA TYPE STRING,
OBJECT TYPE STRING,
CHANGE_STATUS TYPE STRING,
N_NAME TYPE STRING,
INPSTRUCT TYPE STRING,
FIELD TYPE STRING,
VARNAME TYPE STRING,
SERVER TYPE STRING,
PFAD TYPE STRING,
SERVER_BACK TYPE STRING,
PFAD_BACK TYPE STRING,
CPGFS TYPE STRING,
CPGIS TYPE STRING,
FILE_SUFFIX TYPE STRING,
ANZDS TYPE STRING,
WB_STATUS TYPE STRING,
EXCEL_PFAD TYPE STRING,
INSERT_TOOL TYPE STRING,
FULL_FIELDNAME TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
ANAME TYPE STRING,
STRUC_PFAD TYPE STRING,
PERFMON_ON TYPE STRING,
PERFMON_NR TYPE STRING,
MSG_TO_JOBLOG TYPE STRING,
SEL_IMP_MODE TYPE STRING,
MSG_OFF TYPE STRING,
CONVOBJECT TYPE STRING,
CHANGE_IMP_PATH TYPE STRING,
ACCESSIBLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TEMUS_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_TEMUS_STR-MANDT sy-vline 
WA_TEMUS_STR-UNAME sy-vline 
WA_TEMUS_STR-FIRMA sy-vline 
WA_TEMUS_STR-JMP_FIRMA sy-vline 
WA_TEMUS_STR-OBJECT sy-vline 
WA_TEMUS_STR-CHANGE_STATUS sy-vline 
WA_TEMUS_STR-N_NAME sy-vline 
WA_TEMUS_STR-INPSTRUCT sy-vline 
WA_TEMUS_STR-FIELD sy-vline 
WA_TEMUS_STR-VARNAME sy-vline 
WA_TEMUS_STR-SERVER sy-vline 
WA_TEMUS_STR-PFAD sy-vline 
WA_TEMUS_STR-SERVER_BACK sy-vline 
WA_TEMUS_STR-PFAD_BACK sy-vline 
WA_TEMUS_STR-CPGFS sy-vline 
WA_TEMUS_STR-CPGIS sy-vline 
WA_TEMUS_STR-FILE_SUFFIX sy-vline 
WA_TEMUS_STR-ANZDS sy-vline 
WA_TEMUS_STR-WB_STATUS sy-vline 
WA_TEMUS_STR-EXCEL_PFAD sy-vline 
WA_TEMUS_STR-INSERT_TOOL sy-vline 
WA_TEMUS_STR-FULL_FIELDNAME sy-vline 
WA_TEMUS_STR-DATUM sy-vline 
WA_TEMUS_STR-UZEIT sy-vline 
WA_TEMUS_STR-ANAME sy-vline 
WA_TEMUS_STR-STRUC_PFAD sy-vline 
WA_TEMUS_STR-PERFMON_ON sy-vline 
WA_TEMUS_STR-PERFMON_NR sy-vline 
WA_TEMUS_STR-MSG_TO_JOBLOG sy-vline 
WA_TEMUS_STR-SEL_IMP_MODE sy-vline 
WA_TEMUS_STR-MSG_OFF sy-vline 
WA_TEMUS_STR-CONVOBJECT sy-vline 
WA_TEMUS_STR-CHANGE_IMP_PATH sy-vline 
WA_TEMUS_STR-ACCESSIBLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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