ABAP Select data from SAP table IPIRHIST 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 IPIRHIST 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 IPIRHIST. 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 IPIRHIST 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_IPIRHIST TYPE STANDARD TABLE OF IPIRHIST,
      WA_IPIRHIST TYPE IPIRHIST,
      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: <IPIRHIST> TYPE IPIRHIST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPIRHIST
*  INTO TABLE @DATA(IT_IPIRHIST2).
*--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_IPIRHIST INDEX 1 INTO DATA(WA_IPIRHIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPIRHIST>-MANDT = 1.
<IPIRHIST>-PLNDINDEPRQMTINTERNALID = 1.
<IPIRHIST>-FORECASTYEARMONTH = 1.
<IPIRHIST>-ORDERENDDATE = 1.
<IPIRHIST>-LASTCHANGEDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPIRHIST-LASTCHANGETIME, sy-vline,
  WA_IPIRHIST-LASTCHANGEDBYUSER, sy-vline,
  WA_IPIRHIST-FORECASTPERIODTYPE, sy-vline,
  WA_IPIRHIST-DELIVERYDATE, sy-vline,
  WA_IPIRHIST-FORECASTPERIODSTARTDATE, sy-vline,
  WA_IPIRHIST-FORECASTYEARQUARTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPIRHIST 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_IPIRHIST 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_IPIRHIST INTO WA_IPIRHIST.


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

*Conversion exit MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IPIRHIST-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPIRHIST-PRODUCT.
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_IPIRHIST_STR, 
MANDT TYPE STRING,
PLNDINDEPRQMTINTERNALID TYPE STRING,
FORECASTYEARMONTH TYPE STRING,
ORDERENDDATE TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
FORECASTPERIODTYPE TYPE STRING,
DELIVERYDATE TYPE STRING,
FORECASTPERIODSTARTDATE TYPE STRING,
FORECASTYEARQUARTER TYPE STRING,
BASEUNIT TYPE STRING,
PLANNEDQUANTITY TYPE STRING,
WITHDRAWALQUANTITY TYPE STRING,
PRODUCT TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
PLNDINDEPRQMTTYPE TYPE STRING,
REQUIREMENTPLAN TYPE STRING,
EXTERNALREQUIREMENTPLAN TYPE STRING,
REQUIREMENTSEGMENT TYPE STRING,
PLNDINDEPRQMTCONSUMPTIONSTRGY TYPE STRING,
PLNDINDEPRQMTISACTIVE TYPE STRING,
PLNDINDEPRQMTCONSUMPTIONASSGMT TYPE STRING,
PLNDINDEPRQMTUSAGE TYPE STRING,
PLNDINDEPRQMTISTOBEDELETED TYPE STRING,
PLNDINDEPRQMTLASTCHGDDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPIRHIST_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_IPIRHIST_STR-MANDT sy-vline 
WA_IPIRHIST_STR-PLNDINDEPRQMTINTERNALID sy-vline 
WA_IPIRHIST_STR-FORECASTYEARMONTH sy-vline 
WA_IPIRHIST_STR-ORDERENDDATE sy-vline 
WA_IPIRHIST_STR-LASTCHANGEDATE sy-vline 
WA_IPIRHIST_STR-LASTCHANGETIME sy-vline 
WA_IPIRHIST_STR-LASTCHANGEDBYUSER sy-vline 
WA_IPIRHIST_STR-FORECASTPERIODTYPE sy-vline 
WA_IPIRHIST_STR-DELIVERYDATE sy-vline 
WA_IPIRHIST_STR-FORECASTPERIODSTARTDATE sy-vline 
WA_IPIRHIST_STR-FORECASTYEARQUARTER sy-vline 
WA_IPIRHIST_STR-BASEUNIT sy-vline 
WA_IPIRHIST_STR-PLANNEDQUANTITY sy-vline 
WA_IPIRHIST_STR-WITHDRAWALQUANTITY sy-vline 
WA_IPIRHIST_STR-PRODUCT sy-vline 
WA_IPIRHIST_STR-PLANT sy-vline 
WA_IPIRHIST_STR-MRPAREA sy-vline 
WA_IPIRHIST_STR-PLNDINDEPRQMTTYPE sy-vline 
WA_IPIRHIST_STR-REQUIREMENTPLAN sy-vline 
WA_IPIRHIST_STR-EXTERNALREQUIREMENTPLAN sy-vline 
WA_IPIRHIST_STR-REQUIREMENTSEGMENT sy-vline 
WA_IPIRHIST_STR-PLNDINDEPRQMTCONSUMPTIONSTRGY sy-vline 
WA_IPIRHIST_STR-PLNDINDEPRQMTISACTIVE sy-vline 
WA_IPIRHIST_STR-PLNDINDEPRQMTCONSUMPTIONASSGMT sy-vline 
WA_IPIRHIST_STR-PLNDINDEPRQMTUSAGE sy-vline 
WA_IPIRHIST_STR-PLNDINDEPRQMTISTOBEDELETED sy-vline 
WA_IPIRHIST_STR-PLNDINDEPRQMTLASTCHGDDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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