ABAP Select data from SAP table IPC_SEMINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPC_SEMINFO
*  INTO TABLE @DATA(IT_IPC_SEMINFO2).
*--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_IPC_SEMINFO INDEX 1 INTO DATA(WA_IPC_SEMINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPC_SEMINFO>-SEMKEY = 1.
<IPC_SEMINFO>-SLOTA = 1.
<IPC_SEMINFO>-SLOTB = 1.
<IPC_SEMINFO>-WRITEIDX = 1.
<IPC_SEMINFO>-RDIDX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPC_SEMINFO-STARTTIME, sy-vline,
  WA_IPC_SEMINFO-ACTIVITYCOUNT, sy-vline,
  WA_IPC_SEMINFO-ENTERTIME, sy-vline,
  WA_IPC_SEMINFO-ENTERCOUNT, sy-vline,
  WA_IPC_SEMINFO-ENTERDELAY1, sy-vline,
  WA_IPC_SEMINFO-ENTERDELAY2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPC_SEMINFO 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_IPC_SEMINFO 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_IPC_SEMINFO INTO WA_IPC_SEMINFO.


*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_IPC_SEMINFO_STR, 
SEMKEY TYPE STRING,
SLOTA TYPE STRING,
SLOTB TYPE STRING,
WRITEIDX TYPE STRING,
RDIDX TYPE STRING,
STARTTIME TYPE STRING,
ACTIVITYCOUNT TYPE STRING,
ENTERTIME TYPE STRING,
ENTERCOUNT TYPE STRING,
ENTERDELAY1 TYPE STRING,
ENTERDELAY2 TYPE STRING,
ENTERDELAY3 TYPE STRING,
ENTERDELAY4 TYPE STRING,
ENTERDELAY5 TYPE STRING,
ENTERDELAY6 TYPE STRING,
ENTERDELAY7 TYPE STRING,
ENTERTIMESUM TYPE STRING,
EXITTIME TYPE STRING,
EXITCOUNT TYPE STRING,
EXITDELAY1 TYPE STRING,
EXITDELAY2 TYPE STRING,
EXITDELAY3 TYPE STRING,
EXITDELAY4 TYPE STRING,
EXITDELAY5 TYPE STRING,
EXITDELAY6 TYPE STRING,
EXITDELAY7 TYPE STRING,
EXITTIMESUM TYPE STRING,
EXITCPUUMS TYPE STRING,
EXITCPUSMS TYPE STRING,
ENTERTIMEMAX TYPE STRING,
ENTERTIMEMAXPROC TYPE STRING,
EXITTIMEMAX TYPE STRING,
EXITTIMEMAXPROC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPC_SEMINFO_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_IPC_SEMINFO_STR-SEMKEY sy-vline 
WA_IPC_SEMINFO_STR-SLOTA sy-vline 
WA_IPC_SEMINFO_STR-SLOTB sy-vline 
WA_IPC_SEMINFO_STR-WRITEIDX sy-vline 
WA_IPC_SEMINFO_STR-RDIDX sy-vline 
WA_IPC_SEMINFO_STR-STARTTIME sy-vline 
WA_IPC_SEMINFO_STR-ACTIVITYCOUNT sy-vline 
WA_IPC_SEMINFO_STR-ENTERTIME sy-vline 
WA_IPC_SEMINFO_STR-ENTERCOUNT sy-vline 
WA_IPC_SEMINFO_STR-ENTERDELAY1 sy-vline 
WA_IPC_SEMINFO_STR-ENTERDELAY2 sy-vline 
WA_IPC_SEMINFO_STR-ENTERDELAY3 sy-vline 
WA_IPC_SEMINFO_STR-ENTERDELAY4 sy-vline 
WA_IPC_SEMINFO_STR-ENTERDELAY5 sy-vline 
WA_IPC_SEMINFO_STR-ENTERDELAY6 sy-vline 
WA_IPC_SEMINFO_STR-ENTERDELAY7 sy-vline 
WA_IPC_SEMINFO_STR-ENTERTIMESUM sy-vline 
WA_IPC_SEMINFO_STR-EXITTIME sy-vline 
WA_IPC_SEMINFO_STR-EXITCOUNT sy-vline 
WA_IPC_SEMINFO_STR-EXITDELAY1 sy-vline 
WA_IPC_SEMINFO_STR-EXITDELAY2 sy-vline 
WA_IPC_SEMINFO_STR-EXITDELAY3 sy-vline 
WA_IPC_SEMINFO_STR-EXITDELAY4 sy-vline 
WA_IPC_SEMINFO_STR-EXITDELAY5 sy-vline 
WA_IPC_SEMINFO_STR-EXITDELAY6 sy-vline 
WA_IPC_SEMINFO_STR-EXITDELAY7 sy-vline 
WA_IPC_SEMINFO_STR-EXITTIMESUM sy-vline 
WA_IPC_SEMINFO_STR-EXITCPUUMS sy-vline 
WA_IPC_SEMINFO_STR-EXITCPUSMS sy-vline 
WA_IPC_SEMINFO_STR-ENTERTIMEMAX sy-vline 
WA_IPC_SEMINFO_STR-ENTERTIMEMAXPROC sy-vline 
WA_IPC_SEMINFO_STR-EXITTIMEMAX sy-vline 
WA_IPC_SEMINFO_STR-EXITTIMEMAXPROC sy-vline      INTO ld_text SEPARATED BY SPACE.

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