ABAP Select data from SAP table ISUS_UMC_ACCOUNT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISUS_UMC_ACCOUNT
*  INTO TABLE @DATA(IT_ISUS_UMC_ACCOUNT2).
*--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_ISUS_UMC_ACCOUNT INDEX 1 INTO DATA(WA_ISUS_UMC_ACCOUNT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISUS_UMC_ACCOUNT>-PARTNER_ID = 1.
<ISUS_UMC_ACCOUNT>-TITLE_KEY = 1.
<ISUS_UMC_ACCOUNT>-FIRSTNAME = 1.
<ISUS_UMC_ACCOUNT>-LASTNAME = 1.
<ISUS_UMC_ACCOUNT>-MIDDLENAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISUS_UMC_ACCOUNT-SECONDNAME, sy-vline,
  WA_ISUS_UMC_ACCOUNT-SEX, sy-vline,
  WA_ISUS_UMC_ACCOUNT-FULLNAME, sy-vline,
  WA_ISUS_UMC_ACCOUNT-NAME1, sy-vline,
  WA_ISUS_UMC_ACCOUNT-NAME2, sy-vline,
  WA_ISUS_UMC_ACCOUNT-NAME3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISUS_UMC_ACCOUNT 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_ISUS_UMC_ACCOUNT 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_ISUS_UMC_ACCOUNT INTO WA_ISUS_UMC_ACCOUNT.


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

*Conversion exit ISOLA, internal->external for field CORRESPONDLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ISUS_UMC_ACCOUNT-CORRESPONDLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUS_UMC_ACCOUNT-CORRESPONDLANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field PARTNERLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ISUS_UMC_ACCOUNT-PARTNERLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUS_UMC_ACCOUNT-PARTNERLANGUAGE.
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_ISUS_UMC_ACCOUNT_STR, 
PARTNER_ID TYPE STRING,
TITLE_KEY TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
MIDDLENAME TYPE STRING,
SECONDNAME TYPE STRING,
SEX TYPE STRING,
FULLNAME TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
NAMEGROUP1 TYPE STRING,
NAMEGROUP2 TYPE STRING,
PARTN_CAT TYPE STRING,
CORRESPONDLANGUAGE TYPE STRING,
CORRESPONDLANGUAGEISO TYPE STRING,
PARTNERLANGUAGE TYPE STRING,
PARTNERLANGUAGEISO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISUS_UMC_ACCOUNT_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_ISUS_UMC_ACCOUNT_STR-PARTNER_ID sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-TITLE_KEY sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-FIRSTNAME sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-LASTNAME sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-MIDDLENAME sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-SECONDNAME sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-SEX sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-FULLNAME sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-NAME1 sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-NAME2 sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-NAME3 sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-NAME4 sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-NAMEGROUP1 sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-NAMEGROUP2 sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-PARTN_CAT sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-CORRESPONDLANGUAGE sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-CORRESPONDLANGUAGEISO sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-PARTNERLANGUAGE sy-vline 
WA_ISUS_UMC_ACCOUNT_STR-PARTNERLANGUAGEISO sy-vline      INTO ld_text SEPARATED BY SPACE.

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