ABAP Select data from SAP table /SAPAPO/OM_TB_IO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/OM_TB_IO
*  INTO TABLE @DATA(IT_/SAPAPO/OM_TB_IO2).
*--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_/SAPAPO/OM_TB_IO INDEX 1 INTO DATA(WA_/SAPAPO/OM_TB_IO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/OM_TB_IO>-INCLUDE = 1.
</SAPAPO/OM_TB_IO>-ACTID = 1.
</SAPAPO/OM_TB_IO>-PEGID = 1.
</SAPAPO/OM_TB_IO>-SUBLOC = 1.
</SAPAPO/OM_TB_IO>-VERSION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/OM_TB_IO-CATEGORY, sy-vline,
  WA_/SAPAPO/OM_TB_IO-CATEGORY_TYPE, sy-vline,
  WA_/SAPAPO/OM_TB_IO-CHARID, sy-vline,
  WA_/SAPAPO/OM_TB_IO-POSITION_NO, sy-vline,
  WA_/SAPAPO/OM_TB_IO-LINE_NO, sy-vline,
  WA_/SAPAPO/OM_TB_IO-IS_INPUT_NODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/OM_TB_IO 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_/SAPAPO/OM_TB_IO 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_/SAPAPO/OM_TB_IO INTO WA_/SAPAPO/OM_TB_IO.


*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 TSTPS, internal->external for field IO_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OM_TB_IO-IO_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OM_TB_IO-IO_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field IO_END_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OM_TB_IO-IO_END_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OM_TB_IO-IO_END_TIME.
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_/SAPAPO/OM_TB_IO_STR, 
INCLUDE TYPE STRING,
ACTID TYPE STRING,
PEGID TYPE STRING,
SUBLOC TYPE STRING,
VERSION TYPE STRING,
CATEGORY TYPE STRING,
CATEGORY_TYPE TYPE STRING,
CHARID TYPE STRING,
POSITION_NO TYPE STRING,
LINE_NO TYPE STRING,
IS_INPUT_NODE TYPE STRING,
PARENT_POS TYPE STRING,
QUANTITY TYPE STRING,
REAL_QUANTITY TYPE STRING,
ORIGINAL_QUANTITY TYPE STRING,
CONF_QUANTITY TYPE STRING,
IS_MASTER TYPE STRING,
IGNORE_PEGGING TYPE STRING,
PENALTY_GROUP TYPE STRING,
EXT_FIXED TYPE STRING,
BOMID TYPE STRING,
BOMID_TYPE TYPE STRING,
INC_FLAG TYPE STRING,
ADVCODE TYPE STRING,
PRIO_REQ TYPE STRING,
CUOBJ TYPE STRING,
CONTI_SCHEDULING TYPE STRING,
OFFSET_VALUE TYPE STRING,
UNPLAN_OFFSET_VALUE TYPE STRING,
HAS_UNPLAN_OFFSET TYPE STRING,
OFFSET_RELATION TYPE STRING,
OFFSET_IN_PERCENT TYPE STRING,
SCHEDULE_OFFSET TYPE STRING,
HAS_CHARACTS TYPE STRING,
SHLF_MIN TYPE STRING,
SHLF_MAX TYPE STRING,
USE_SHLF TYPE STRING,
ATP_MERGE_FLAG TYPE STRING,
IONODE_TYPE TYPE STRING,
ORDERID TYPE STRING,
IO_TIME TYPE STRING,
IO_END_TIME TYPE STRING,
NETCHG_FLAG TYPE STRING,
CHANGE_FLAG TYPE STRING,
HAS_DESC_CHARACTS TYPE STRING,
ATPCMPSTAT TYPE STRING,
RESERVED_INT4_1 TYPE STRING,
RESERVED_INT4_2 TYPE STRING,
RESERVED_BOOL_1 TYPE STRING,
RESERVED_BOOL_2 TYPE STRING,
AFS_CAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/OM_TB_IO_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_/SAPAPO/OM_TB_IO_STR-INCLUDE sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-ACTID sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-PEGID sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-SUBLOC sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-VERSION sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-CATEGORY sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-CATEGORY_TYPE sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-CHARID sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-POSITION_NO sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-LINE_NO sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-IS_INPUT_NODE sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-PARENT_POS sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-QUANTITY sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-REAL_QUANTITY sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-ORIGINAL_QUANTITY sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-CONF_QUANTITY sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-IS_MASTER sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-IGNORE_PEGGING sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-PENALTY_GROUP sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-EXT_FIXED sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-BOMID sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-BOMID_TYPE sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-INC_FLAG sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-ADVCODE sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-PRIO_REQ sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-CUOBJ sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-CONTI_SCHEDULING sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-OFFSET_VALUE sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-UNPLAN_OFFSET_VALUE sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-HAS_UNPLAN_OFFSET sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-OFFSET_RELATION sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-OFFSET_IN_PERCENT sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-SCHEDULE_OFFSET sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-HAS_CHARACTS sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-SHLF_MIN sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-SHLF_MAX sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-USE_SHLF sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-ATP_MERGE_FLAG sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-IONODE_TYPE sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-ORDERID sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-IO_TIME sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-IO_END_TIME sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-NETCHG_FLAG sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-CHANGE_FLAG sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-HAS_DESC_CHARACTS sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-ATPCMPSTAT sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-RESERVED_INT4_1 sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-RESERVED_INT4_2 sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-RESERVED_BOOL_1 sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-RESERVED_BOOL_2 sy-vline 
WA_/SAPAPO/OM_TB_IO_STR-AFS_CAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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