ABAP Select data from SAP table /PLMI/C_ER_CIRCP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PLMI/C_ER_CIRCP
*  INTO TABLE @DATA(IT_/PLMI/C_ER_CIRCP2).
*--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_/PLMI/C_ER_CIRCP INDEX 1 INTO DATA(WA_/PLMI/C_ER_CIRCP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PLMI/C_ER_CIRCP>-SAPCLIENT = 1.
</PLMI/C_ER_CIRCP>-ENGINEERINGRECORDUUID = 1.
</PLMI/C_ER_CIRCP>-CHANGEITEMINTERNALID = 1.
</PLMI/C_ER_CIRCP>-CHANGEITEMINTERNALKEY = 1.
</PLMI/C_ER_CIRCP>-OBJECTCHANGERELEVANCE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PLMI/C_ER_CIRCP-OBJECTGROUPING, sy-vline,
  WA_/PLMI/C_ER_CIRCP-ITEMCOSTCHANGE, sy-vline,
  WA_/PLMI/C_ER_CIRCP-ENGINEERINGCOST, sy-vline,
  WA_/PLMI/C_ER_CIRCP-INVESTMENTAMOUNT, sy-vline,
  WA_/PLMI/C_ER_CIRCP-CHANGEITEMOBJECTSTATUS, sy-vline,
  WA_/PLMI/C_ER_CIRCP-CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PLMI/C_ER_CIRCP 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_/PLMI/C_ER_CIRCP 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_/PLMI/C_ER_CIRCP INTO WA_/PLMI/C_ER_CIRCP.


*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 NEWMATERIALCHANGENUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PLMI/C_ER_CIRCP-NEWMATERIALCHANGENUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMI/C_ER_CIRCP-NEWMATERIALCHANGENUMBER.
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_/PLMI/C_ER_CIRCP_STR, 
SAPCLIENT TYPE STRING,
ENGINEERINGRECORDUUID TYPE STRING,
CHANGEITEMINTERNALID TYPE STRING,
CHANGEITEMINTERNALKEY TYPE STRING,
OBJECTCHANGERELEVANCE TYPE STRING,
OBJECTGROUPING TYPE STRING,
ITEMCOSTCHANGE TYPE STRING,
ENGINEERINGCOST TYPE STRING,
INVESTMENTAMOUNT TYPE STRING,
CHANGEITEMOBJECTSTATUS TYPE STRING,
CURRENCY TYPE STRING,
NEWMATERIALCHANGENUMBER TYPE STRING,
NEWCONTAININGRCPPRIMARYOUTPUT TYPE STRING,
NEWRECIPEALTERNATIVENUMBER TYPE STRING,
NEWCONTAININGRCPVERSIONNUMBER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
OBJECTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PLMI/C_ER_CIRCP_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_/PLMI/C_ER_CIRCP_STR-SAPCLIENT sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-ENGINEERINGRECORDUUID sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-CHANGEITEMINTERNALID sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-CHANGEITEMINTERNALKEY sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-OBJECTCHANGERELEVANCE sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-OBJECTGROUPING sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-ITEMCOSTCHANGE sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-ENGINEERINGCOST sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-INVESTMENTAMOUNT sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-CHANGEITEMOBJECTSTATUS sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-CURRENCY sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-NEWMATERIALCHANGENUMBER sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-NEWCONTAININGRCPPRIMARYOUTPUT sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-NEWRECIPEALTERNATIVENUMBER sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-NEWCONTAININGRCPVERSIONNUMBER sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-LASTCHANGEDBYUSER sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-LASTCHANGEDATE sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-LASTCHANGETIME sy-vline 
WA_/PLMI/C_ER_CIRCP_STR-OBJECTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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