ABAP Select data from SAP table OIU_CM_SEVTGRP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIU_CM_SEVTGRP
*  INTO TABLE @DATA(IT_OIU_CM_SEVTGRP2).
*--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_OIU_CM_SEVTGRP INDEX 1 INTO DATA(WA_OIU_CM_SEVTGRP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIU_CM_SEVTGRP>-MANDT = 1.
<OIU_CM_SEVTGRP>-MAJPD_CD = 1.
<OIU_CM_SEVTGRP>-COUNTRY = 1.
<OIU_CM_SEVTGRP>-PRI_GEO_LOC = 1.
<OIU_CM_SEVTGRP>-SEVT_TAX_TY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIU_CM_SEVTGRP-PGL_MEAS_U, sy-vline,
  WA_OIU_CM_SEVTGRP-SEVT_TAX_POSTN, sy-vline,
  WA_OIU_CM_SEVTGRP-SUM_GS_NGL_VL_FL, sy-vline,
  WA_OIU_CM_SEVTGRP-PRC_INCL_TAX_FL, sy-vline,
  WA_OIU_CM_SEVTGRP-RPA_ALLW_FL, sy-vline,
  WA_OIU_CM_SEVTGRP-TT_BY_PROJ_FL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIU_CM_SEVTGRP 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_OIU_CM_SEVTGRP 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_OIU_CM_SEVTGRP INTO WA_OIU_CM_SEVTGRP.


*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 CUNIT, internal->external for field PGL_MEAS_U
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIU_CM_SEVTGRP-PGL_MEAS_U
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIU_CM_SEVTGRP-PGL_MEAS_U.
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_OIU_CM_SEVTGRP_STR, 
MANDT TYPE STRING,
MAJPD_CD TYPE STRING,
COUNTRY TYPE STRING,
PRI_GEO_LOC TYPE STRING,
SEVT_TAX_TY TYPE STRING,
PGL_MEAS_U TYPE STRING,
SEVT_TAX_POSTN TYPE STRING,
SUM_GS_NGL_VL_FL TYPE STRING,
PRC_INCL_TAX_FL TYPE STRING,
RPA_ALLW_FL TYPE STRING,
TT_BY_PROJ_FL TYPE STRING,
TT_BY_PRC_LIM_FL TYPE STRING,
TT_BY_WL_FL TYPE STRING,
PRCS_EXMP_FL TYPE STRING,
TAX_EXMP_ALLW_FL TYPE STRING,
MKRT_FREE_FL TYPE STRING,
TPA_ALLW_FL TYPE STRING,
SCHD_TAX_FL TYPE STRING,
COUNTY_FL TYPE STRING,
BYSLL_CT_PU_FL TYPE STRING,
TAKE_IN_KIND_FL TYPE STRING,
NGLS_AS_SUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIU_CM_SEVTGRP_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_OIU_CM_SEVTGRP_STR-MANDT sy-vline 
WA_OIU_CM_SEVTGRP_STR-MAJPD_CD sy-vline 
WA_OIU_CM_SEVTGRP_STR-COUNTRY sy-vline 
WA_OIU_CM_SEVTGRP_STR-PRI_GEO_LOC sy-vline 
WA_OIU_CM_SEVTGRP_STR-SEVT_TAX_TY sy-vline 
WA_OIU_CM_SEVTGRP_STR-PGL_MEAS_U sy-vline 
WA_OIU_CM_SEVTGRP_STR-SEVT_TAX_POSTN sy-vline 
WA_OIU_CM_SEVTGRP_STR-SUM_GS_NGL_VL_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-PRC_INCL_TAX_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-RPA_ALLW_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-TT_BY_PROJ_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-TT_BY_PRC_LIM_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-TT_BY_WL_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-PRCS_EXMP_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-TAX_EXMP_ALLW_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-MKRT_FREE_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-TPA_ALLW_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-SCHD_TAX_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-COUNTY_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-BYSLL_CT_PU_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-TAKE_IN_KIND_FL sy-vline 
WA_OIU_CM_SEVTGRP_STR-NGLS_AS_SUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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