ABAP Select data from SAP table IDMLGITMACTCAT 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 IDMLGITMACTCAT 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 IDMLGITMACTCAT. 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 IDMLGITMACTCAT 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_IDMLGITMACTCAT TYPE STANDARD TABLE OF IDMLGITMACTCAT,
      WA_IDMLGITMACTCAT TYPE IDMLGITMACTCAT,
      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: <IDMLGITMACTCAT> TYPE IDMLGITMACTCAT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDMLGITMACTCAT
*  INTO TABLE @DATA(IT_IDMLGITMACTCAT2).
*--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_IDMLGITMACTCAT INDEX 1 INTO DATA(WA_IDMLGITMACTCAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDMLGITMACTCAT>-MANDT = 1.
<IDMLGITMACTCAT>-DATAMIGRTNLOGITEMMSGID = 1.
<IDMLGITMACTCAT>-DATAMIGRTNSNDRSTRUCNAME = 1.
<IDMLGITMACTCAT>-DATAMIGRATIONSNDRSTRUCFIELD = 1.
<IDMLGITMACTCAT>-DATAMIGRTNFIELDTRANSLATIONID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDMLGITMACTCAT-DATAMIGRATIONOBJECTID, sy-vline,
  WA_IDMLGITMACTCAT-DATAMIGRATIONPROJECTID, sy-vline,
  WA_IDMLGITMACTCAT-DATAMIGRATIONSENDERKEY, sy-vline,
  WA_IDMLGITMACTCAT-DATAMIGRATIONSUBPROJECTID, sy-vline,
  WA_IDMLGITMACTCAT-DATAMIGRATIONLOADINGDATE, sy-vline,
  WA_IDMLGITMACTCAT-DATAMIGRATIONSNDRSTRUCFIELDVAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDMLGITMACTCAT 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_IDMLGITMACTCAT 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_IDMLGITMACTCAT INTO WA_IDMLGITMACTCAT.


*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_IDMLGITMACTCAT_STR, 
MANDT TYPE STRING,
DATAMIGRTNLOGITEMMSGID TYPE STRING,
DATAMIGRTNSNDRSTRUCNAME TYPE STRING,
DATAMIGRATIONSNDRSTRUCFIELD TYPE STRING,
DATAMIGRTNFIELDTRANSLATIONID TYPE STRING,
DATAMIGRATIONOBJECTID TYPE STRING,
DATAMIGRATIONPROJECTID TYPE STRING,
DATAMIGRATIONSENDERKEY TYPE STRING,
DATAMIGRATIONSUBPROJECTID TYPE STRING,
DATAMIGRATIONLOADINGDATE TYPE STRING,
DATAMIGRATIONSNDRSTRUCFIELDVAL TYPE STRING,
DATAMIGRATIONTGTSTRUCFIELDVAL TYPE STRING,
NUMBEROFENTRIESPERCATEGORY TYPE STRING,
DATAMIGRATIONFILENAME TYPE STRING,
DATAMIGRATIONPROJECTDESC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDMLGITMACTCAT_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_IDMLGITMACTCAT_STR-MANDT sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRTNLOGITEMMSGID sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRTNSNDRSTRUCNAME sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRATIONSNDRSTRUCFIELD sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRTNFIELDTRANSLATIONID sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRATIONOBJECTID sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRATIONPROJECTID sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRATIONSENDERKEY sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRATIONSUBPROJECTID sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRATIONLOADINGDATE sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRATIONSNDRSTRUCFIELDVAL sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRATIONTGTSTRUCFIELDVAL sy-vline 
WA_IDMLGITMACTCAT_STR-NUMBEROFENTRIESPERCATEGORY sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRATIONFILENAME sy-vline 
WA_IDMLGITMACTCAT_STR-DATAMIGRATIONPROJECTDESC sy-vline      INTO ld_text SEPARATED BY SPACE.

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