ABAP Select data from SAP table IOOPER_PRESUC into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IOOPER_PRESUC
*  INTO TABLE @DATA(IT_IOOPER_PRESUC2).
*--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_IOOPER_PRESUC INDEX 1 INTO DATA(WA_IOOPER_PRESUC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IOOPER_PRESUC>-PRE_ORDNUM = 1.
<IOOPER_PRESUC>-PRE_OPERNUM = 1.
<IOOPER_PRESUC>-PRE_OPRTEXT = 1.
<IOOPER_PRESUC>-PRE_SEQUENCE = 1.
<IOOPER_PRESUC>-PRE_WKC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IOOPER_PRESUC-PRE_WKCTEXT, sy-vline,
  WA_IOOPER_PRESUC-PRE_SYSTATUS, sy-vline,
  WA_IOOPER_PRESUC-PRE_USER_STATUS, sy-vline,
  WA_IOOPER_PRESUC-PRE_QUANTITY, sy-vline,
  WA_IOOPER_PRESUC-PRE_UOM, sy-vline,
  WA_IOOPER_PRESUC-PRE_QUANTDEV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IOOPER_PRESUC 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_IOOPER_PRESUC 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_IOOPER_PRESUC INTO WA_IOOPER_PRESUC.


*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 ALPHA, internal->external for field PRE_ORDNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IOOPER_PRESUC-PRE_ORDNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOOPER_PRESUC-PRE_ORDNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field PRE_OPERNUM
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_IOOPER_PRESUC-PRE_OPERNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOOPER_PRESUC-PRE_OPERNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRE_SEQUENCE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IOOPER_PRESUC-PRE_SEQUENCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOOPER_PRESUC-PRE_SEQUENCE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PRE_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IOOPER_PRESUC-PRE_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOOPER_PRESUC-PRE_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUC_ORDNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IOOPER_PRESUC-SUC_ORDNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOOPER_PRESUC-SUC_ORDNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field SUC_OPERNUM
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_IOOPER_PRESUC-SUC_OPERNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOOPER_PRESUC-SUC_OPERNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUC_SEQUENCE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IOOPER_PRESUC-SUC_SEQUENCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOOPER_PRESUC-SUC_SEQUENCE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field SUC_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IOOPER_PRESUC-SUC_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOOPER_PRESUC-SUC_UOM.
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_IOOPER_PRESUC_STR, 
PRE_ORDNUM TYPE STRING,
PRE_OPERNUM TYPE STRING,
PRE_OPRTEXT TYPE STRING,
PRE_SEQUENCE TYPE STRING,
PRE_WKC TYPE STRING,
PRE_WKCTEXT TYPE STRING,
PRE_SYSTATUS TYPE STRING,
PRE_USER_STATUS TYPE STRING,
PRE_QUANTITY TYPE STRING,
PRE_UOM TYPE STRING,
PRE_QUANTDEV TYPE STRING,
PRE_YIELD TYPE STRING,
PRE_ISDD TYPE STRING,
PRE_ISDZ TYPE STRING,
PRE_IEDD TYPE STRING,
PRE_IEDZ TYPE STRING,
PRE_FSEDD TYPE STRING,
PRE_FSEDZ TYPE STRING,
PRE_SSEDD TYPE STRING,
PRE_SSEDZ TYPE STRING,
SUC_ORDNUM TYPE STRING,
SUC_OPERNUM TYPE STRING,
SUC_OPRTEXT TYPE STRING,
SUC_SEQUENCE TYPE STRING,
SUC_WKC TYPE STRING,
SUC_WKCTEXT TYPE STRING,
SUC_SYSTATUS TYPE STRING,
SUC_USER_STATUS TYPE STRING,
SUC_QUANTITY TYPE STRING,
SUC_UOM TYPE STRING,
SUC_FSAVD TYPE STRING,
SUC_FSAVZ TYPE STRING,
SUC_SSAVD TYPE STRING,
SUC_SSAVZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IOOPER_PRESUC_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_IOOPER_PRESUC_STR-PRE_ORDNUM sy-vline 
WA_IOOPER_PRESUC_STR-PRE_OPERNUM sy-vline 
WA_IOOPER_PRESUC_STR-PRE_OPRTEXT sy-vline 
WA_IOOPER_PRESUC_STR-PRE_SEQUENCE sy-vline 
WA_IOOPER_PRESUC_STR-PRE_WKC sy-vline 
WA_IOOPER_PRESUC_STR-PRE_WKCTEXT sy-vline 
WA_IOOPER_PRESUC_STR-PRE_SYSTATUS sy-vline 
WA_IOOPER_PRESUC_STR-PRE_USER_STATUS sy-vline 
WA_IOOPER_PRESUC_STR-PRE_QUANTITY sy-vline 
WA_IOOPER_PRESUC_STR-PRE_UOM sy-vline 
WA_IOOPER_PRESUC_STR-PRE_QUANTDEV sy-vline 
WA_IOOPER_PRESUC_STR-PRE_YIELD sy-vline 
WA_IOOPER_PRESUC_STR-PRE_ISDD sy-vline 
WA_IOOPER_PRESUC_STR-PRE_ISDZ sy-vline 
WA_IOOPER_PRESUC_STR-PRE_IEDD sy-vline 
WA_IOOPER_PRESUC_STR-PRE_IEDZ sy-vline 
WA_IOOPER_PRESUC_STR-PRE_FSEDD sy-vline 
WA_IOOPER_PRESUC_STR-PRE_FSEDZ sy-vline 
WA_IOOPER_PRESUC_STR-PRE_SSEDD sy-vline 
WA_IOOPER_PRESUC_STR-PRE_SSEDZ sy-vline 
WA_IOOPER_PRESUC_STR-SUC_ORDNUM sy-vline 
WA_IOOPER_PRESUC_STR-SUC_OPERNUM sy-vline 
WA_IOOPER_PRESUC_STR-SUC_OPRTEXT sy-vline 
WA_IOOPER_PRESUC_STR-SUC_SEQUENCE sy-vline 
WA_IOOPER_PRESUC_STR-SUC_WKC sy-vline 
WA_IOOPER_PRESUC_STR-SUC_WKCTEXT sy-vline 
WA_IOOPER_PRESUC_STR-SUC_SYSTATUS sy-vline 
WA_IOOPER_PRESUC_STR-SUC_USER_STATUS sy-vline 
WA_IOOPER_PRESUC_STR-SUC_QUANTITY sy-vline 
WA_IOOPER_PRESUC_STR-SUC_UOM sy-vline 
WA_IOOPER_PRESUC_STR-SUC_FSAVD sy-vline 
WA_IOOPER_PRESUC_STR-SUC_FSAVZ sy-vline 
WA_IOOPER_PRESUC_STR-SUC_SSAVD sy-vline 
WA_IOOPER_PRESUC_STR-SUC_SSAVZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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