ABAP Select data from SAP table IMAINTEQUIPMENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMAINTEQUIPMENT
*  INTO TABLE @DATA(IT_IMAINTEQUIPMENT2).
*--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_IMAINTEQUIPMENT INDEX 1 INTO DATA(WA_IMAINTEQUIPMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMAINTEQUIPMENT>-MANDT = 1.
<IMAINTEQUIPMENT>-EQUIPMENT = 1.
<IMAINTEQUIPMENT>-DFSMAINTTAILNUMBER = 1.
<IMAINTEQUIPMENT>-DFSMAINTREMARKTEXT = 1.
<IMAINTEQUIPMENT>-DFSMAINTACTUALCONFIGURATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMAINTEQUIPMENT-DFSMAINTISFOREIGNEQUIPMENT, sy-vline,
  WA_IMAINTEQUIPMENT-DFSMAINTMODELIDENTIFICATION, sy-vline,
  WA_IMAINTEQUIPMENT-DFSMAINTSITEID, sy-vline,
  WA_IMAINTEQUIPMENT-DFSMAINTEQUIPMENTTYPE, sy-vline,
  WA_IMAINTEQUIPMENT-DFSMAINTSITEDESCRIPTION, sy-vline,
  WA_IMAINTEQUIPMENT-DFSMAINTAREAID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMAINTEQUIPMENT 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_IMAINTEQUIPMENT 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_IMAINTEQUIPMENT INTO WA_IMAINTEQUIPMENT.


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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IMAINTEQUIPMENT-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAINTEQUIPMENT-MATERIAL.
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_IMAINTEQUIPMENT_STR, 
MANDT TYPE STRING,
EQUIPMENT TYPE STRING,
DFSMAINTTAILNUMBER TYPE STRING,
DFSMAINTREMARKTEXT TYPE STRING,
DFSMAINTACTUALCONFIGURATION TYPE STRING,
DFSMAINTISFOREIGNEQUIPMENT TYPE STRING,
DFSMAINTMODELIDENTIFICATION TYPE STRING,
DFSMAINTSITEID TYPE STRING,
DFSMAINTEQUIPMENTTYPE TYPE STRING,
DFSMAINTSITEDESCRIPTION TYPE STRING,
DFSMAINTAREAID TYPE STRING,
DFSMAINTMASTEREQUIPTECHOBJNMBR TYPE STRING,
DFSMAINTAREADESCRIPTION TYPE STRING,
DFSMAINTEQUIPOPLOBJNMBR TYPE STRING,
DFSMAINTEQUIPOPLSTATUSPROFILE TYPE STRING,
DFSMAINTEQUIPOPLSTSSHRTNAME TYPE STRING,
DFSMAINTEQUIPOPLSTSLONGNAME TYPE STRING,
DFSMAINTEQUIPTECHSTSSHRTNAME TYPE STRING,
DFSMAINTEQUIPTECHSTSLONGNAME TYPE STRING,
DFSMAINTEQUIPTECHSTATUSPROFILE TYPE STRING,
DFSMAINTEQUIPTECHSTSPRFLNAME TYPE STRING,
DFSMAINTEQUIPTECHSTATUSICON TYPE STRING,
DFSMAINTMODELDESCRIPTION TYPE STRING,
MATERIAL TYPE STRING,
DFSMAINTTECHSTSAGGRGNISSTPPD TYPE STRING,
DFSMAINTISMASTEREQUIPMENT TYPE STRING,
FLXMTPLOBJRIC TYPE STRING,
FLXMTPLOBJRICDESCRIPTION TYPE STRING,
FLXBLMATLPLNGOBJECTID TYPE STRING,
FLXBLMATLPLNGOBJDESCRIPTION TYPE STRING,
DFSMAINTEQUIPSTATUSICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMAINTEQUIPMENT_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_IMAINTEQUIPMENT_STR-MANDT sy-vline 
WA_IMAINTEQUIPMENT_STR-EQUIPMENT sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTTAILNUMBER sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTREMARKTEXT sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTACTUALCONFIGURATION sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTISFOREIGNEQUIPMENT sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTMODELIDENTIFICATION sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTSITEID sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTEQUIPMENTTYPE sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTSITEDESCRIPTION sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTAREAID sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTMASTEREQUIPTECHOBJNMBR sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTAREADESCRIPTION sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTEQUIPOPLOBJNMBR sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTEQUIPOPLSTATUSPROFILE sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTEQUIPOPLSTSSHRTNAME sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTEQUIPOPLSTSLONGNAME sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTEQUIPTECHSTSSHRTNAME sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTEQUIPTECHSTSLONGNAME sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTEQUIPTECHSTATUSPROFILE sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTEQUIPTECHSTSPRFLNAME sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTEQUIPTECHSTATUSICON sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTMODELDESCRIPTION sy-vline 
WA_IMAINTEQUIPMENT_STR-MATERIAL sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTTECHSTSAGGRGNISSTPPD sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTISMASTEREQUIPMENT sy-vline 
WA_IMAINTEQUIPMENT_STR-FLXMTPLOBJRIC sy-vline 
WA_IMAINTEQUIPMENT_STR-FLXMTPLOBJRICDESCRIPTION sy-vline 
WA_IMAINTEQUIPMENT_STR-FLXBLMATLPLNGOBJECTID sy-vline 
WA_IMAINTEQUIPMENT_STR-FLXBLMATLPLNGOBJDESCRIPTION sy-vline 
WA_IMAINTEQUIPMENT_STR-DFSMAINTEQUIPSTATUSICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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