ABAP Select data from SAP table /MERP/PP_POHEADR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MERP/PP_POHEADR 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 /MERP/PP_POHEADR. 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 /MERP/PP_POHEADR 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_/MERP/PP_POHEADR TYPE STANDARD TABLE OF /MERP/PP_POHEADR,
      WA_/MERP/PP_POHEADR TYPE /MERP/PP_POHEADR,
      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: </MERP/PP_POHEADR> TYPE /MERP/PP_POHEADR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /MERP/PP_POHEADR
  INTO TABLE IT_/MERP/PP_POHEADR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MERP/PP_POHEADR
*  INTO TABLE @DATA(IT_/MERP/PP_POHEADR2).
*--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_/MERP/PP_POHEADR INDEX 1 INTO DATA(WA_/MERP/PP_POHEADR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/MERP/PP_POHEADR ASSIGNING </MERP/PP_POHEADR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MERP/PP_POHEADR>-MANDT = 1.
</MERP/PP_POHEADR>-ORDERID = 1.
</MERP/PP_POHEADR>-ORDERCATEGORY = 1.
</MERP/PP_POHEADR>-ORDERTYPE = 1.
</MERP/PP_POHEADR>-PLANT = 1.

ENDLOOP.

LOOP AT IT_/MERP/PP_POHEADR INTO WA_/MERP/PP_POHEADR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MERP/PP_POHEADR-ISMARKEDFORDELETION, sy-vline,
  WA_/MERP/PP_POHEADR-MATERIAL, sy-vline,
  WA_/MERP/PP_POHEADR-ACTUALSTARTDATE, sy-vline,
  WA_/MERP/PP_POHEADR-ACTUALSTARTTIME, sy-vline,
  WA_/MERP/PP_POHEADR-ACTUALENDDATE, sy-vline,
  WA_/MERP/PP_POHEADR-SCHEDULEDSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MERP/PP_POHEADR 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_/MERP/PP_POHEADR 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_/MERP/PP_POHEADR INTO WA_/MERP/PP_POHEADR.


*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 ORDERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MERP/PP_POHEADR-ORDERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MERP/PP_POHEADR-ORDERID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/MERP/PP_POHEADR-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MERP/PP_POHEADR-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/MERP/PP_POHEADR-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MERP/PP_POHEADR-UNITOFMEASURE.
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_/MERP/PP_POHEADR_STR, 
MANDT TYPE STRING,
ORDERID TYPE STRING,
ORDERCATEGORY TYPE STRING,
ORDERTYPE TYPE STRING,
PLANT TYPE STRING,
ISMARKEDFORDELETION TYPE STRING,
MATERIAL TYPE STRING,
ACTUALSTARTDATE TYPE STRING,
ACTUALSTARTTIME TYPE STRING,
ACTUALENDDATE TYPE STRING,
SCHEDULEDSTARTDATE TYPE STRING,
SCHEDULEDSTARTTIME TYPE STRING,
SCHEDULEDENDDATE TYPE STRING,
SCHEDULEDENDTIME TYPE STRING,
OBJECTNUM TYPE STRING,
ORDERINTERNALID TYPE STRING,
PRODUCTIONSUPERVISOR TYPE STRING,
SUPERIORODRER TYPE STRING,
CONFIRMEDQUANTITY TYPE STRING,
MRPCONTROLLER TYPE STRING,
PRODUCTIONVERSION TYPE STRING,
CONTROLLINGAREA TYPE STRING,
CONFIRMEDENDDATE TYPE STRING,
CONFIRMEDENDTIME TYPE STRING,
UNITOFMEASURE TYPE STRING,
GRQUANTITY TYPE STRING,
TOTALQUANTITY TYPE STRING,
PLANNEDSCRAPQUANTITY TYPE STRING,
QUALITYISSUESCRAP TYPE STRING,
EXPECTEDDEVIATIONQUANTITY TYPE STRING,
OPENQUANTITY TYPE STRING,
ORDERHASQUALITYISSUE TYPE STRING,
QUALITYISSUEINPERCENT TYPE STRING,
ORDERHASQUANTITYISSUE TYPE STRING,
QUANTITYDEVIATION TYPE STRING,
ORDERHASCOMPONENTISSUE TYPE STRING,
MISSINGCOMPONENTMATERIAL TYPE STRING,
NUMBEROFCOMPONENTSMISSING TYPE STRING,
ORDERHASPRODUCTIONHOLD TYPE STRING,
ORDEREXECUTIONSTARTISLATE TYPE STRING,
ORDEREXECUTIONENDISLATE TYPE STRING,
CURRENTTIMERELATEDSTARTDELAY TYPE STRING,
CURRENTTIMERELATEDENDDELAY TYPE STRING,
EXECUTIONSTARTLATENESSINHOURS TYPE STRING,
EXECUTIONENDLATENESSINHOURS TYPE STRING,
EXECUTIONSTARTLATENESSINMINS TYPE STRING,
EXECUTIONENDLATENESSINMINUTES TYPE STRING,
ACTUALORDERSTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MERP/PP_POHEADR_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_/MERP/PP_POHEADR_STR-MANDT sy-vline 
WA_/MERP/PP_POHEADR_STR-ORDERID sy-vline 
WA_/MERP/PP_POHEADR_STR-ORDERCATEGORY sy-vline 
WA_/MERP/PP_POHEADR_STR-ORDERTYPE sy-vline 
WA_/MERP/PP_POHEADR_STR-PLANT sy-vline 
WA_/MERP/PP_POHEADR_STR-ISMARKEDFORDELETION sy-vline 
WA_/MERP/PP_POHEADR_STR-MATERIAL sy-vline 
WA_/MERP/PP_POHEADR_STR-ACTUALSTARTDATE sy-vline 
WA_/MERP/PP_POHEADR_STR-ACTUALSTARTTIME sy-vline 
WA_/MERP/PP_POHEADR_STR-ACTUALENDDATE sy-vline 
WA_/MERP/PP_POHEADR_STR-SCHEDULEDSTARTDATE sy-vline 
WA_/MERP/PP_POHEADR_STR-SCHEDULEDSTARTTIME sy-vline 
WA_/MERP/PP_POHEADR_STR-SCHEDULEDENDDATE sy-vline 
WA_/MERP/PP_POHEADR_STR-SCHEDULEDENDTIME sy-vline 
WA_/MERP/PP_POHEADR_STR-OBJECTNUM sy-vline 
WA_/MERP/PP_POHEADR_STR-ORDERINTERNALID sy-vline 
WA_/MERP/PP_POHEADR_STR-PRODUCTIONSUPERVISOR sy-vline 
WA_/MERP/PP_POHEADR_STR-SUPERIORODRER sy-vline 
WA_/MERP/PP_POHEADR_STR-CONFIRMEDQUANTITY sy-vline 
WA_/MERP/PP_POHEADR_STR-MRPCONTROLLER sy-vline 
WA_/MERP/PP_POHEADR_STR-PRODUCTIONVERSION sy-vline 
WA_/MERP/PP_POHEADR_STR-CONTROLLINGAREA sy-vline 
WA_/MERP/PP_POHEADR_STR-CONFIRMEDENDDATE sy-vline 
WA_/MERP/PP_POHEADR_STR-CONFIRMEDENDTIME sy-vline 
WA_/MERP/PP_POHEADR_STR-UNITOFMEASURE sy-vline 
WA_/MERP/PP_POHEADR_STR-GRQUANTITY sy-vline 
WA_/MERP/PP_POHEADR_STR-TOTALQUANTITY sy-vline 
WA_/MERP/PP_POHEADR_STR-PLANNEDSCRAPQUANTITY sy-vline 
WA_/MERP/PP_POHEADR_STR-QUALITYISSUESCRAP sy-vline 
WA_/MERP/PP_POHEADR_STR-EXPECTEDDEVIATIONQUANTITY sy-vline 
WA_/MERP/PP_POHEADR_STR-OPENQUANTITY sy-vline 
WA_/MERP/PP_POHEADR_STR-ORDERHASQUALITYISSUE sy-vline 
WA_/MERP/PP_POHEADR_STR-QUALITYISSUEINPERCENT sy-vline 
WA_/MERP/PP_POHEADR_STR-ORDERHASQUANTITYISSUE sy-vline 
WA_/MERP/PP_POHEADR_STR-QUANTITYDEVIATION sy-vline 
WA_/MERP/PP_POHEADR_STR-ORDERHASCOMPONENTISSUE sy-vline 
WA_/MERP/PP_POHEADR_STR-MISSINGCOMPONENTMATERIAL sy-vline 
WA_/MERP/PP_POHEADR_STR-NUMBEROFCOMPONENTSMISSING sy-vline 
WA_/MERP/PP_POHEADR_STR-ORDERHASPRODUCTIONHOLD sy-vline 
WA_/MERP/PP_POHEADR_STR-ORDEREXECUTIONSTARTISLATE sy-vline 
WA_/MERP/PP_POHEADR_STR-ORDEREXECUTIONENDISLATE sy-vline 
WA_/MERP/PP_POHEADR_STR-CURRENTTIMERELATEDSTARTDELAY sy-vline 
WA_/MERP/PP_POHEADR_STR-CURRENTTIMERELATEDENDDELAY sy-vline 
WA_/MERP/PP_POHEADR_STR-EXECUTIONSTARTLATENESSINHOURS sy-vline 
WA_/MERP/PP_POHEADR_STR-EXECUTIONENDLATENESSINHOURS sy-vline 
WA_/MERP/PP_POHEADR_STR-EXECUTIONSTARTLATENESSINMINS sy-vline 
WA_/MERP/PP_POHEADR_STR-EXECUTIONENDLATENESSINMINUTES sy-vline 
WA_/MERP/PP_POHEADR_STR-ACTUALORDERSTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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