ABAP Select data from SAP table IPW4_COM 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 IPW4_COM 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 IPW4_COM. 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 IPW4_COM 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_IPW4_COM TYPE STANDARD TABLE OF IPW4_COM,
      WA_IPW4_COM TYPE IPW4_COM,
      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: <IPW4_COM> TYPE IPW4_COM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IPW4_COM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IPW4_COM
  INTO TABLE IT_IPW4_COM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPW4_COM
*  INTO TABLE @DATA(IT_IPW4_COM2).
*--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_IPW4_COM INDEX 1 INTO DATA(WA_IPW4_COM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IPW4_COM ASSIGNING <IPW4_COM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPW4_COM>-CDATE = 1.
<IPW4_COM>-CTIME = 1.
<IPW4_COM>-TZNZONE = 1.
<IPW4_COM>-SYSTEM_ID = 1.
<IPW4_COM>-ACTV = 1.

ENDLOOP.

LOOP AT IT_IPW4_COM INTO WA_IPW4_COM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPW4_COM-FCODE, sy-vline,
  WA_IPW4_COM-TOP_EQUI, sy-vline,
  WA_IPW4_COM-TOP_FLOC, sy-vline,
  WA_IPW4_COM-PLRMV_IND, sy-vline,
  WA_IPW4_COM-UPRMV_IND, sy-vline,
  WA_IPW4_COM-FRCFIT_IND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPW4_COM 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_IPW4_COM 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_IPW4_COM INTO WA_IPW4_COM.


*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 TOP_EQUI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPW4_COM-TOP_EQUI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPW4_COM-TOP_EQUI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TOP_FLOC
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_IPW4_COM-TOP_FLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPW4_COM-TOP_FLOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MATDOC_CREATED
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPW4_COM-MATDOC_CREATED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPW4_COM-MATDOC_CREATED.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MATYEAR_CREATED
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IPW4_COM-MATYEAR_CREATED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPW4_COM-MATYEAR_CREATED.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field QMNUM_CREATED
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPW4_COM-QMNUM_CREATED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPW4_COM-QMNUM_CREATED.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPW4_COM-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPW4_COM-AUFNR.
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_IPW4_COM_STR, 
CDATE TYPE STRING,
CTIME TYPE STRING,
TZNZONE TYPE STRING,
SYSTEM_ID TYPE STRING,
ACTV TYPE STRING,
FCODE TYPE STRING,
TOP_EQUI TYPE STRING,
TOP_FLOC TYPE STRING,
PLRMV_IND TYPE STRING,
UPRMV_IND TYPE STRING,
FRCFIT_IND TYPE STRING,
FRCRMV_IND TYPE STRING,
SVCND_IND TYPE STRING,
USCND_IND TYPE STRING,
UKCND_IND TYPE STRING,
DISM_IND TYPE STRING,
ROTCOND_IND TYPE STRING,
PRNT_NOTIF TYPE STRING,
TOPOBJ TYPE STRING,
COMMIT_MODE TYPE STRING,
TASK_CODE TYPE STRING,
TASK_CGRP TYPE STRING,
TASK_CAT TYPE STRING,
NOTIF_ID_KEY TYPE STRING,
SUPPRESS_DIALOG TYPE STRING,
MATDOC_CREATED TYPE STRING,
MATYEAR_CREATED TYPE STRING,
QMNUM_CREATED TYPE STRING,
AUFNR TYPE STRING,
FCD_IND TYPE STRING,
SIM_MODE TYPE STRING,
SEL_MODE TYPE STRING,
NEW_BATCH TYPE STRING,
NEW_VAL_TYPE TYPE STRING,
NEW_BATCH_IND TYPE STRING,
HLGUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPW4_COM_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_IPW4_COM_STR-CDATE sy-vline 
WA_IPW4_COM_STR-CTIME sy-vline 
WA_IPW4_COM_STR-TZNZONE sy-vline 
WA_IPW4_COM_STR-SYSTEM_ID sy-vline 
WA_IPW4_COM_STR-ACTV sy-vline 
WA_IPW4_COM_STR-FCODE sy-vline 
WA_IPW4_COM_STR-TOP_EQUI sy-vline 
WA_IPW4_COM_STR-TOP_FLOC sy-vline 
WA_IPW4_COM_STR-PLRMV_IND sy-vline 
WA_IPW4_COM_STR-UPRMV_IND sy-vline 
WA_IPW4_COM_STR-FRCFIT_IND sy-vline 
WA_IPW4_COM_STR-FRCRMV_IND sy-vline 
WA_IPW4_COM_STR-SVCND_IND sy-vline 
WA_IPW4_COM_STR-USCND_IND sy-vline 
WA_IPW4_COM_STR-UKCND_IND sy-vline 
WA_IPW4_COM_STR-DISM_IND sy-vline 
WA_IPW4_COM_STR-ROTCOND_IND sy-vline 
WA_IPW4_COM_STR-PRNT_NOTIF sy-vline 
WA_IPW4_COM_STR-TOPOBJ sy-vline 
WA_IPW4_COM_STR-COMMIT_MODE sy-vline 
WA_IPW4_COM_STR-TASK_CODE sy-vline 
WA_IPW4_COM_STR-TASK_CGRP sy-vline 
WA_IPW4_COM_STR-TASK_CAT sy-vline 
WA_IPW4_COM_STR-NOTIF_ID_KEY sy-vline 
WA_IPW4_COM_STR-SUPPRESS_DIALOG sy-vline 
WA_IPW4_COM_STR-MATDOC_CREATED sy-vline 
WA_IPW4_COM_STR-MATYEAR_CREATED sy-vline 
WA_IPW4_COM_STR-QMNUM_CREATED sy-vline 
WA_IPW4_COM_STR-AUFNR sy-vline 
WA_IPW4_COM_STR-FCD_IND sy-vline 
WA_IPW4_COM_STR-SIM_MODE sy-vline 
WA_IPW4_COM_STR-SEL_MODE sy-vline 
WA_IPW4_COM_STR-NEW_BATCH sy-vline 
WA_IPW4_COM_STR-NEW_VAL_TYPE sy-vline 
WA_IPW4_COM_STR-NEW_BATCH_IND sy-vline 
WA_IPW4_COM_STR-HLGUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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