ABAP Select data from SAP table OIUCI_PDX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIUCI_PDX
*  INTO TABLE @DATA(IT_OIUCI_PDX2).
*--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_OIUCI_PDX INDEX 1 INTO DATA(WA_OIUCI_PDX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIUCI_PDX>-MANDT = 1.
<OIUCI_PDX>-PU_NO = 1.
<OIUCI_PDX>-PU_SEQ_NO = 1.
<OIUCI_PDX>-PU_PR_NO = 1.
<OIUCI_PDX>-PU_PD_CD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIUCI_PDX-LYT_FL_NO, sy-vline,
  WA_OIUCI_PDX-LYT_FL_CD, sy-vline,
  WA_OIUCI_PDX-EFF_FROM_DT, sy-vline,
  WA_OIUCI_PDX-EFF_TO_DT, sy-vline,
  WA_OIUCI_PDX-EFF_TO_DT_CD, sy-vline,
  WA_OIUCI_PDX-SYS_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIUCI_PDX 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_OIUCI_PDX 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_OIUCI_PDX INTO WA_OIUCI_PDX.


*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 PU_SEQ_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIUCI_PDX-PU_SEQ_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUCI_PDX-PU_SEQ_NO.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field BLN_RWI_OWN_INT_SEQ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIUCI_PDX-BLN_RWI_OWN_INT_SEQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUCI_PDX-BLN_RWI_OWN_INT_SEQ.
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_OIUCI_PDX_STR, 
MANDT TYPE STRING,
PU_NO TYPE STRING,
PU_SEQ_NO TYPE STRING,
PU_PR_NO TYPE STRING,
PU_PD_CD TYPE STRING,
LYT_FL_NO TYPE STRING,
LYT_FL_CD TYPE STRING,
EFF_FROM_DT TYPE STRING,
EFF_TO_DT TYPE STRING,
EFF_TO_DT_CD TYPE STRING,
SYS_NO TYPE STRING,
RCVBL_DECM_PC TYPE STRING,
PD_CD TYPE STRING,
AFFIL_ACCT_NO TYPE STRING,
OVRD_PRCS_NO TYPE STRING,
RCVBL_MP_NO TYPE STRING,
PR_NO TYPE STRING,
DOI_NO TYPE STRING,
TAX_CALC_FL TYPE STRING,
BLN_IND_FL TYPE STRING,
CDEX_OVRD_NO TYPE STRING,
CT_NO TYPE STRING,
CMT_FL TYPE STRING,
VER_NO TYPE STRING,
SPC_DIST_FL TYPE STRING,
USED_FL TYPE STRING,
UNIT_OF_MEAS_CD TYPE STRING,
COST_CENTER TYPE STRING,
OR_LVL_1_NO TYPE STRING,
BLN_RWI_OWN TYPE STRING,
BLN_RWI_OWN_SEQ TYPE STRING,
BLN_RWI_OWN_INT_TYPE TYPE STRING,
BLN_RWI_OWN_INT_SEQ TYPE STRING,
OIU_CRUSER TYPE STRING,
OIU_TIMESTAMP TYPE STRING,
DIST_ON_NET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIUCI_PDX_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_OIUCI_PDX_STR-MANDT sy-vline 
WA_OIUCI_PDX_STR-PU_NO sy-vline 
WA_OIUCI_PDX_STR-PU_SEQ_NO sy-vline 
WA_OIUCI_PDX_STR-PU_PR_NO sy-vline 
WA_OIUCI_PDX_STR-PU_PD_CD sy-vline 
WA_OIUCI_PDX_STR-LYT_FL_NO sy-vline 
WA_OIUCI_PDX_STR-LYT_FL_CD sy-vline 
WA_OIUCI_PDX_STR-EFF_FROM_DT sy-vline 
WA_OIUCI_PDX_STR-EFF_TO_DT sy-vline 
WA_OIUCI_PDX_STR-EFF_TO_DT_CD sy-vline 
WA_OIUCI_PDX_STR-SYS_NO sy-vline 
WA_OIUCI_PDX_STR-RCVBL_DECM_PC sy-vline 
WA_OIUCI_PDX_STR-PD_CD sy-vline 
WA_OIUCI_PDX_STR-AFFIL_ACCT_NO sy-vline 
WA_OIUCI_PDX_STR-OVRD_PRCS_NO sy-vline 
WA_OIUCI_PDX_STR-RCVBL_MP_NO sy-vline 
WA_OIUCI_PDX_STR-PR_NO sy-vline 
WA_OIUCI_PDX_STR-DOI_NO sy-vline 
WA_OIUCI_PDX_STR-TAX_CALC_FL sy-vline 
WA_OIUCI_PDX_STR-BLN_IND_FL sy-vline 
WA_OIUCI_PDX_STR-CDEX_OVRD_NO sy-vline 
WA_OIUCI_PDX_STR-CT_NO sy-vline 
WA_OIUCI_PDX_STR-CMT_FL sy-vline 
WA_OIUCI_PDX_STR-VER_NO sy-vline 
WA_OIUCI_PDX_STR-SPC_DIST_FL sy-vline 
WA_OIUCI_PDX_STR-USED_FL sy-vline 
WA_OIUCI_PDX_STR-UNIT_OF_MEAS_CD sy-vline 
WA_OIUCI_PDX_STR-COST_CENTER sy-vline 
WA_OIUCI_PDX_STR-OR_LVL_1_NO sy-vline 
WA_OIUCI_PDX_STR-BLN_RWI_OWN sy-vline 
WA_OIUCI_PDX_STR-BLN_RWI_OWN_SEQ sy-vline 
WA_OIUCI_PDX_STR-BLN_RWI_OWN_INT_TYPE sy-vline 
WA_OIUCI_PDX_STR-BLN_RWI_OWN_INT_SEQ sy-vline 
WA_OIUCI_PDX_STR-OIU_CRUSER sy-vline 
WA_OIUCI_PDX_STR-OIU_TIMESTAMP sy-vline 
WA_OIUCI_PDX_STR-DIST_ON_NET sy-vline      INTO ld_text SEPARATED BY SPACE.

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