ABAP Select data from SAP table CMMCONTRLEAKAGE1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CMMCONTRLEAKAGE1 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 CMMCONTRLEAKAGE1. 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 CMMCONTRLEAKAGE1 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_CMMCONTRLEAKAGE1 TYPE STANDARD TABLE OF CMMCONTRLEAKAGE1,
      WA_CMMCONTRLEAKAGE1 TYPE CMMCONTRLEAKAGE1,
      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: <CMMCONTRLEAKAGE1> TYPE CMMCONTRLEAKAGE1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CMMCONTRLEAKAGE1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CMMCONTRLEAKAGE1
  INTO TABLE IT_CMMCONTRLEAKAGE1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMCONTRLEAKAGE1
*  INTO TABLE @DATA(IT_CMMCONTRLEAKAGE12).
*--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_CMMCONTRLEAKAGE1 INDEX 1 INTO DATA(WA_CMMCONTRLEAKAGE12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CMMCONTRLEAKAGE1 ASSIGNING <CMMCONTRLEAKAGE1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMMCONTRLEAKAGE1>-MANDT = 1.
<CMMCONTRLEAKAGE1>-PURCHASEORDER = 1.
<CMMCONTRLEAKAGE1>-PURCHASEORDERITEM = 1.
<CMMCONTRLEAKAGE1>-ACCOUNTASSIGNMENTNUMBER = 1.
<CMMCONTRLEAKAGE1>-PURCHASEORDERCATEGORY = 1.

ENDLOOP.

LOOP AT IT_CMMCONTRLEAKAGE1 INTO WA_CMMCONTRLEAKAGE1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMMCONTRLEAKAGE1-PURCHASEORDERTYPE, sy-vline,
  WA_CMMCONTRLEAKAGE1-PURCHASEORDERITEMCATEGORY, sy-vline,
  WA_CMMCONTRLEAKAGE1-PURCHASECONTRACT, sy-vline,
  WA_CMMCONTRLEAKAGE1-PURCHASECONTRACTITEM, sy-vline,
  WA_CMMCONTRLEAKAGE1-MATERIAL, sy-vline,
  WA_CMMCONTRLEAKAGE1-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMMCONTRLEAKAGE1 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_CMMCONTRLEAKAGE1 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_CMMCONTRLEAKAGE1 INTO WA_CMMCONTRLEAKAGE1.


*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 PURCHASEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMCONTRLEAKAGE1-PURCHASEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMCONTRLEAKAGE1-PURCHASEORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PURCHASECONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMCONTRLEAKAGE1-PURCHASECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMCONTRLEAKAGE1-PURCHASECONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CMMCONTRLEAKAGE1-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMCONTRLEAKAGE1-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PURCHASINGCATEGORY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMCONTRLEAKAGE1-PURCHASINGCATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMCONTRLEAKAGE1-PURCHASINGCATEGORY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMCONTRLEAKAGE1-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMCONTRLEAKAGE1-SUPPLIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMCONTRLEAKAGE1-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMCONTRLEAKAGE1-PROFITCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMCONTRLEAKAGE1-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMCONTRLEAKAGE1-COSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CMMCONTRLEAKAGE1-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMCONTRLEAKAGE1-WBSELEMENTINTERNALID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMCONTRLEAKAGE1-GLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMCONTRLEAKAGE1-GLACCOUNT.
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_CMMCONTRLEAKAGE1_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
ACCOUNTASSIGNMENTNUMBER TYPE STRING,
PURCHASEORDERCATEGORY TYPE STRING,
PURCHASEORDERTYPE TYPE STRING,
PURCHASEORDERITEMCATEGORY TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
MATERIALGROUP TYPE STRING,
PURCHASINGCATEGORY TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERCOUNTRY TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURGCATNAME TYPE STRING,
COMPANYCODE TYPE STRING,
PROFITCENTER TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COSTCENTER TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
GLACCOUNT TYPE STRING,
CALENDARYEAR TYPE STRING,
CALENDARQUARTER TYPE STRING,
CALENDARMONTH TYPE STRING,
CALENDARWEEK TYPE STRING,
PURCHASEORDERDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
PURCHASEORDERNETAMOUNT TYPE STRING,
LEAKAGEAMOUNTINDISPLAYCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMCONTRLEAKAGE1_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_CMMCONTRLEAKAGE1_STR-MANDT sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASEORDER sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASEORDERITEM sy-vline 
WA_CMMCONTRLEAKAGE1_STR-ACCOUNTASSIGNMENTNUMBER sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASEORDERCATEGORY sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASEORDERTYPE sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASEORDERITEMCATEGORY sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASECONTRACT sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASECONTRACTITEM sy-vline 
WA_CMMCONTRLEAKAGE1_STR-MATERIAL sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PLANT sy-vline 
WA_CMMCONTRLEAKAGE1_STR-MATERIALGROUP sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASINGCATEGORY sy-vline 
WA_CMMCONTRLEAKAGE1_STR-SUPPLIER sy-vline 
WA_CMMCONTRLEAKAGE1_STR-SUPPLIERCOUNTRY sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASINGORGANIZATION sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASINGGROUP sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURGCATNAME sy-vline 
WA_CMMCONTRLEAKAGE1_STR-COMPANYCODE sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PROFITCENTER sy-vline 
WA_CMMCONTRLEAKAGE1_STR-CONTROLLINGAREA sy-vline 
WA_CMMCONTRLEAKAGE1_STR-COSTCENTER sy-vline 
WA_CMMCONTRLEAKAGE1_STR-WBSELEMENTINTERNALID sy-vline 
WA_CMMCONTRLEAKAGE1_STR-GLACCOUNT sy-vline 
WA_CMMCONTRLEAKAGE1_STR-CALENDARYEAR sy-vline 
WA_CMMCONTRLEAKAGE1_STR-CALENDARQUARTER sy-vline 
WA_CMMCONTRLEAKAGE1_STR-CALENDARMONTH sy-vline 
WA_CMMCONTRLEAKAGE1_STR-CALENDARWEEK sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASEORDERDATE sy-vline 
WA_CMMCONTRLEAKAGE1_STR-CREATEDBYUSER sy-vline 
WA_CMMCONTRLEAKAGE1_STR-DISPLAYCURRENCY sy-vline 
WA_CMMCONTRLEAKAGE1_STR-PURCHASEORDERNETAMOUNT sy-vline 
WA_CMMCONTRLEAKAGE1_STR-LEAKAGEAMOUNTINDISPLAYCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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