ABAP Select data from SAP table PISSUEBYCNSTRT5 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PISSUEBYCNSTRT5 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 PISSUEBYCNSTRT5. 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 PISSUEBYCNSTRT5 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_PISSUEBYCNSTRT5 TYPE STANDARD TABLE OF PISSUEBYCNSTRT5,
      WA_PISSUEBYCNSTRT5 TYPE PISSUEBYCNSTRT5,
      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: <PISSUEBYCNSTRT5> TYPE PISSUEBYCNSTRT5.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PISSUEBYCNSTRT5.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PISSUEBYCNSTRT5
  INTO TABLE IT_PISSUEBYCNSTRT5.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PISSUEBYCNSTRT5
*  INTO TABLE @DATA(IT_PISSUEBYCNSTRT52).
*--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_PISSUEBYCNSTRT5 INDEX 1 INTO DATA(WA_PISSUEBYCNSTRT52).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PISSUEBYCNSTRT5 ASSIGNING <PISSUEBYCNSTRT5>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PISSUEBYCNSTRT5>-MANDT = 1.
<PISSUEBYCNSTRT5>-PMRPSIMULATION = 1.
<PISSUEBYCNSTRT5>-PMRPFLEXIBLECONSTRAINT = 1.
<PISSUEBYCNSTRT5>-TOPLEVELDEMANDINTERNALID = 1.
<PISSUEBYCNSTRT5>-PRODUCT = 1.

ENDLOOP.

LOOP AT IT_PISSUEBYCNSTRT5 INTO WA_PISSUEBYCNSTRT5.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PISSUEBYCNSTRT5-PLANT, sy-vline,
  WA_PISSUEBYCNSTRT5-MRPAREA, sy-vline,
  WA_PISSUEBYCNSTRT5-TOPLEVELDEMANDIMPACTSCORE, sy-vline,
  WA_PISSUEBYCNSTRT5-PMRPSUPPLYGROUP, sy-vline,
  WA_PISSUEBYCNSTRT5-PMRPSUPPLYGROUPCATEGORY, sy-vline,
  WA_PISSUEBYCNSTRT5-UNITOFMEASURE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PISSUEBYCNSTRT5 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_PISSUEBYCNSTRT5 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_PISSUEBYCNSTRT5 INTO WA_PISSUEBYCNSTRT5.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PISSUEBYCNSTRT5_STR, 
MANDT TYPE STRING,
PMRPSIMULATION TYPE STRING,
PMRPFLEXIBLECONSTRAINT TYPE STRING,
TOPLEVELDEMANDINTERNALID TYPE STRING,
PRODUCT TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
TOPLEVELDEMANDIMPACTSCORE TYPE STRING,
PMRPSUPPLYGROUP TYPE STRING,
PMRPSUPPLYGROUPCATEGORY TYPE STRING,
UNITOFMEASURE TYPE STRING,
PMRPNUMBEROFAFFECTEDBUCKETS TYPE STRING,
PMRPCONSTRAINTMAXOVERLOADPCT TYPE STRING,
PMRPCONSTRAINTMISSINGQUANTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PISSUEBYCNSTRT5_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_PISSUEBYCNSTRT5_STR-MANDT sy-vline 
WA_PISSUEBYCNSTRT5_STR-PMRPSIMULATION sy-vline 
WA_PISSUEBYCNSTRT5_STR-PMRPFLEXIBLECONSTRAINT sy-vline 
WA_PISSUEBYCNSTRT5_STR-TOPLEVELDEMANDINTERNALID sy-vline 
WA_PISSUEBYCNSTRT5_STR-PRODUCT sy-vline 
WA_PISSUEBYCNSTRT5_STR-PLANT sy-vline 
WA_PISSUEBYCNSTRT5_STR-MRPAREA sy-vline 
WA_PISSUEBYCNSTRT5_STR-TOPLEVELDEMANDIMPACTSCORE sy-vline 
WA_PISSUEBYCNSTRT5_STR-PMRPSUPPLYGROUP sy-vline 
WA_PISSUEBYCNSTRT5_STR-PMRPSUPPLYGROUPCATEGORY sy-vline 
WA_PISSUEBYCNSTRT5_STR-UNITOFMEASURE sy-vline 
WA_PISSUEBYCNSTRT5_STR-PMRPNUMBEROFAFFECTEDBUCKETS sy-vline 
WA_PISSUEBYCNSTRT5_STR-PMRPCONSTRAINTMAXOVERLOADPCT sy-vline 
WA_PISSUEBYCNSTRT5_STR-PMRPCONSTRAINTMISSINGQUANTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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