ABAP Select data from SAP table CPMRPRESDIS 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 CPMRPRESDIS 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 CPMRPRESDIS. 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 CPMRPRESDIS 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_CPMRPRESDIS TYPE STANDARD TABLE OF CPMRPRESDIS,
      WA_CPMRPRESDIS TYPE CPMRPRESDIS,
      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: <CPMRPRESDIS> TYPE CPMRPRESDIS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPMRPRESDIS
*  INTO TABLE @DATA(IT_CPMRPRESDIS2).
*--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_CPMRPRESDIS INDEX 1 INTO DATA(WA_CPMRPRESDIS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPMRPRESDIS>-MANDT = 1.
<CPMRPRESDIS>-PMRPSIMULATION = 1.
<CPMRPRESDIS>-PMRPRESOURCEINTERNALID = 1.
<CPMRPRESDIS>-PMRPRESOURCEDISREGARDISSSTATUS = 1.
<CPMRPRESDIS>-PMRPRSCEDISREGARDISSREASONNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPMRPRESDIS-PMRPRESOURCEDISREGARDISSREASON, sy-vline,
  WA_CPMRPRESDIS-PMRPREFERENCEPLAN, sy-vline,
  WA_CPMRPRESDIS-PLANT, sy-vline,
  WA_CPMRPRESDIS-PLANTNAME, sy-vline,
  WA_CPMRPRESDIS-WORKCENTER, sy-vline,
  WA_CPMRPRESDIS-CAPACITYCATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPMRPRESDIS 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_CPMRPRESDIS 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_CPMRPRESDIS INTO WA_CPMRPRESDIS.


*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_CPMRPRESDIS_STR, 
MANDT TYPE STRING,
PMRPSIMULATION TYPE STRING,
PMRPRESOURCEINTERNALID TYPE STRING,
PMRPRESOURCEDISREGARDISSSTATUS TYPE STRING,
PMRPRSCEDISREGARDISSREASONNAME TYPE STRING,
PMRPRESOURCEDISREGARDISSREASON TYPE STRING,
PMRPREFERENCEPLAN TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
WORKCENTER TYPE STRING,
CAPACITYCATEGORY TYPE STRING,
CAPACITYCATEGORYNAME TYPE STRING,
PMRPWORKCENTERTEXT TYPE STRING,
PMRPISSUECATEGORYTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPMRPRESDIS_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_CPMRPRESDIS_STR-MANDT sy-vline 
WA_CPMRPRESDIS_STR-PMRPSIMULATION sy-vline 
WA_CPMRPRESDIS_STR-PMRPRESOURCEINTERNALID sy-vline 
WA_CPMRPRESDIS_STR-PMRPRESOURCEDISREGARDISSSTATUS sy-vline 
WA_CPMRPRESDIS_STR-PMRPRSCEDISREGARDISSREASONNAME sy-vline 
WA_CPMRPRESDIS_STR-PMRPRESOURCEDISREGARDISSREASON sy-vline 
WA_CPMRPRESDIS_STR-PMRPREFERENCEPLAN sy-vline 
WA_CPMRPRESDIS_STR-PLANT sy-vline 
WA_CPMRPRESDIS_STR-PLANTNAME sy-vline 
WA_CPMRPRESDIS_STR-WORKCENTER sy-vline 
WA_CPMRPRESDIS_STR-CAPACITYCATEGORY sy-vline 
WA_CPMRPRESDIS_STR-CAPACITYCATEGORYNAME sy-vline 
WA_CPMRPRESDIS_STR-PMRPWORKCENTERTEXT sy-vline 
WA_CPMRPRESDIS_STR-PMRPISSUECATEGORYTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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