ABAP Select data from SAP table CMALFREPINVL 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 CMALFREPINVL 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 CMALFREPINVL. 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 CMALFREPINVL 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_CMALFREPINVL TYPE STANDARD TABLE OF CMALFREPINVL,
      WA_CMALFREPINVL TYPE CMALFREPINVL,
      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: <CMALFREPINVL> TYPE CMALFREPINVL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMALFREPINVL
*  INTO TABLE @DATA(IT_CMALFREPINVL2).
*--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_CMALFREPINVL INDEX 1 INTO DATA(WA_CMALFREPINVL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMALFREPINVL>-MANDT = 1.
<CMALFREPINVL>-MAINTOBJECTINTERNALID = 1.
<CMALFREPINVL>-STATUSOBJECT = 1.
<CMALFREPINVL>-OBJECTTYPE = 1.
<CMALFREPINVL>-MAINTENANCEJOBINTERNALID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMALFREPINVL-PERSONINVOLVED, sy-vline,
  WA_CMALFREPINVL-MAINTENANCENOTIFICATION, sy-vline,
  WA_CMALFREPINVL-CREATEDBYUSER, sy-vline,
  WA_CMALFREPINVL-EAMOVERALLOBJECTSTATUS, sy-vline,
  WA_CMALFREPINVL-EQUIPMENT, sy-vline,
  WA_CMALFREPINVL-MAINTPRIORITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMALFREPINVL 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_CMALFREPINVL 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_CMALFREPINVL INTO WA_CMALFREPINVL.


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

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

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

*Conversion exit TECHO, internal->external for field TECHNICALOBJECTLABEL
CALL FUNCTION 'CONVERSION_EXIT_TECHO_OUTPUT'
  EXPORTING
    input =                      WA_CMALFREPINVL-TECHNICALOBJECTLABEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMALFREPINVL-TECHNICALOBJECTLABEL.
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_CMALFREPINVL_STR, 
MANDT TYPE STRING,
MAINTOBJECTINTERNALID TYPE STRING,
STATUSOBJECT TYPE STRING,
OBJECTTYPE TYPE STRING,
MAINTENANCEJOBINTERNALID TYPE STRING,
PERSONINVOLVED TYPE STRING,
MAINTENANCENOTIFICATION TYPE STRING,
CREATEDBYUSER TYPE STRING,
EAMOVERALLOBJECTSTATUS TYPE STRING,
EQUIPMENT TYPE STRING,
MAINTPRIORITY TYPE STRING,
MAINTENANCEORDER TYPE STRING,
MAINTENANCEORDERDESC TYPE STRING,
MAINTENANCEWORKCENTERPLANT TYPE STRING,
MALFUNCTIONEFFECT TYPE STRING,
MALFUNCTIONENDDATE TYPE STRING,
MALFUNCTIONENDTIME TYPE STRING,
MALFUNCTIONSTARTDATE TYPE STRING,
MALFUNCTIONSTARTTIME TYPE STRING,
NOTIFICATIONCREATIONDATE TYPE STRING,
NOTIFICATIONCREATIONTIME TYPE STRING,
NOTIFICATIONTEXT TYPE STRING,
NOTIFICATIONTYPE TYPE STRING,
REPORTERFULLNAME TYPE STRING,
TECHOBJISEQUIPORFUNCNLLOC TYPE STRING,
TECHNICALOBJECTLABEL TYPE STRING,
WORKCENTER TYPE STRING,
WORKCENTERTEXT TYPE STRING,
ITEMCOUNTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMALFREPINVL_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_CMALFREPINVL_STR-MANDT sy-vline 
WA_CMALFREPINVL_STR-MAINTOBJECTINTERNALID sy-vline 
WA_CMALFREPINVL_STR-STATUSOBJECT sy-vline 
WA_CMALFREPINVL_STR-OBJECTTYPE sy-vline 
WA_CMALFREPINVL_STR-MAINTENANCEJOBINTERNALID sy-vline 
WA_CMALFREPINVL_STR-PERSONINVOLVED sy-vline 
WA_CMALFREPINVL_STR-MAINTENANCENOTIFICATION sy-vline 
WA_CMALFREPINVL_STR-CREATEDBYUSER sy-vline 
WA_CMALFREPINVL_STR-EAMOVERALLOBJECTSTATUS sy-vline 
WA_CMALFREPINVL_STR-EQUIPMENT sy-vline 
WA_CMALFREPINVL_STR-MAINTPRIORITY sy-vline 
WA_CMALFREPINVL_STR-MAINTENANCEORDER sy-vline 
WA_CMALFREPINVL_STR-MAINTENANCEORDERDESC sy-vline 
WA_CMALFREPINVL_STR-MAINTENANCEWORKCENTERPLANT sy-vline 
WA_CMALFREPINVL_STR-MALFUNCTIONEFFECT sy-vline 
WA_CMALFREPINVL_STR-MALFUNCTIONENDDATE sy-vline 
WA_CMALFREPINVL_STR-MALFUNCTIONENDTIME sy-vline 
WA_CMALFREPINVL_STR-MALFUNCTIONSTARTDATE sy-vline 
WA_CMALFREPINVL_STR-MALFUNCTIONSTARTTIME sy-vline 
WA_CMALFREPINVL_STR-NOTIFICATIONCREATIONDATE sy-vline 
WA_CMALFREPINVL_STR-NOTIFICATIONCREATIONTIME sy-vline 
WA_CMALFREPINVL_STR-NOTIFICATIONTEXT sy-vline 
WA_CMALFREPINVL_STR-NOTIFICATIONTYPE sy-vline 
WA_CMALFREPINVL_STR-REPORTERFULLNAME sy-vline 
WA_CMALFREPINVL_STR-TECHOBJISEQUIPORFUNCNLLOC sy-vline 
WA_CMALFREPINVL_STR-TECHNICALOBJECTLABEL sy-vline 
WA_CMALFREPINVL_STR-WORKCENTER sy-vline 
WA_CMALFREPINVL_STR-WORKCENTERTEXT sy-vline 
WA_CMALFREPINVL_STR-ITEMCOUNTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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