ABAP Select data from SAP table IPASQNCTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPASQNCTP
*  INTO TABLE @DATA(IT_IPASQNCTP2).
*--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_IPASQNCTP INDEX 1 INTO DATA(WA_IPASQNCTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPASQNCTP>-MANDT = 1.
<IPASQNCTP>-PRODUCTALLOCATIONSEQUENCEUUID = 1.
<IPASQNCTP>-PRODUCTALLOCATIONSEQUENCE = 1.
<IPASQNCTP>-NUMBEROFBACKWARDCNSMPNPERIODS = 1.
<IPASQNCTP>-NUMBEROFFORWARDCNSMPNPERIODS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPASQNCTP-HORIZONTALCONSUMPTIONDIRECTION, sy-vline,
  WA_IPASQNCTP-VERTICALCONSUMPTIONDIRECTION, sy-vline,
  WA_IPASQNCTP-PASTPERIODISALLOWED, sy-vline,
  WA_IPASQNCTP-PRODALLOCSQNCCONSUMPTIONUNIT, sy-vline,
  WA_IPASQNCTP-PRODALLOCCONSISTENCYSTATUS, sy-vline,
  WA_IPASQNCTP-PRODALLOCATIONLIFECYCLESTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPASQNCTP 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_IPASQNCTP 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_IPASQNCTP INTO WA_IPASQNCTP.


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

*Conversion exit CUNIT, internal->external for field PRODALLOCSQNCCONSUMPTIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IPASQNCTP-PRODALLOCSQNCCONSUMPTIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPASQNCTP-PRODALLOCSQNCCONSUMPTIONUNIT.
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_IPASQNCTP_STR, 
MANDT TYPE STRING,
PRODUCTALLOCATIONSEQUENCEUUID TYPE STRING,
PRODUCTALLOCATIONSEQUENCE TYPE STRING,
NUMBEROFBACKWARDCNSMPNPERIODS TYPE STRING,
NUMBEROFFORWARDCNSMPNPERIODS TYPE STRING,
HORIZONTALCONSUMPTIONDIRECTION TYPE STRING,
VERTICALCONSUMPTIONDIRECTION TYPE STRING,
PASTPERIODISALLOWED TYPE STRING,
PRODALLOCSQNCCONSUMPTIONUNIT TYPE STRING,
PRODALLOCCONSISTENCYSTATUS TYPE STRING,
PRODALLOCATIONLIFECYCLESTATUS TYPE STRING,
CREATIONDATETIME TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPASQNCTP_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_IPASQNCTP_STR-MANDT sy-vline 
WA_IPASQNCTP_STR-PRODUCTALLOCATIONSEQUENCEUUID sy-vline 
WA_IPASQNCTP_STR-PRODUCTALLOCATIONSEQUENCE sy-vline 
WA_IPASQNCTP_STR-NUMBEROFBACKWARDCNSMPNPERIODS sy-vline 
WA_IPASQNCTP_STR-NUMBEROFFORWARDCNSMPNPERIODS sy-vline 
WA_IPASQNCTP_STR-HORIZONTALCONSUMPTIONDIRECTION sy-vline 
WA_IPASQNCTP_STR-VERTICALCONSUMPTIONDIRECTION sy-vline 
WA_IPASQNCTP_STR-PASTPERIODISALLOWED sy-vline 
WA_IPASQNCTP_STR-PRODALLOCSQNCCONSUMPTIONUNIT sy-vline 
WA_IPASQNCTP_STR-PRODALLOCCONSISTENCYSTATUS sy-vline 
WA_IPASQNCTP_STR-PRODALLOCATIONLIFECYCLESTATUS sy-vline 
WA_IPASQNCTP_STR-CREATIONDATETIME sy-vline 
WA_IPASQNCTP_STR-CREATIONDATE sy-vline 
WA_IPASQNCTP_STR-CREATEDBYUSER sy-vline 
WA_IPASQNCTP_STR-LASTCHANGEDATETIME sy-vline 
WA_IPASQNCTP_STR-LASTCHANGEDATE sy-vline 
WA_IPASQNCTP_STR-LASTCHANGEDBYUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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