ABAP Select data from SAP table /SAPCE/IUUA_STR_ESUB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPCE/IUUA_STR_ESUB 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 /SAPCE/IUUA_STR_ESUB. 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 /SAPCE/IUUA_STR_ESUB 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_/SAPCE/IUUA_STR_ESUB TYPE STANDARD TABLE OF /SAPCE/IUUA_STR_ESUB,
      WA_/SAPCE/IUUA_STR_ESUB TYPE /SAPCE/IUUA_STR_ESUB,
      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: </SAPCE/IUUA_STR_ESUB> TYPE /SAPCE/IUUA_STR_ESUB.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPCE/IUUA_STR_ESUB
  INTO TABLE IT_/SAPCE/IUUA_STR_ESUB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPCE/IUUA_STR_ESUB
*  INTO TABLE @DATA(IT_/SAPCE/IUUA_STR_ESUB2).
*--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_/SAPCE/IUUA_STR_ESUB INDEX 1 INTO DATA(WA_/SAPCE/IUUA_STR_ESUB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPCE/IUUA_STR_ESUB ASSIGNING </SAPCE/IUUA_STR_ESUB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPCE/IUUA_STR_ESUB>-MANDT = 1.
</SAPCE/IUUA_STR_ESUB>-VERTRAG = 1.
</SAPCE/IUUA_STR_ESUB>-FROMDATE = 1.
</SAPCE/IUUA_STR_ESUB>-DUEDATE = 1.
</SAPCE/IUUA_STR_ESUB>-AB = 1.

ENDLOOP.

LOOP AT IT_/SAPCE/IUUA_STR_ESUB INTO WA_/SAPCE/IUUA_STR_ESUB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPCE/IUUA_STR_ESUB-BIS, sy-vline,
  WA_/SAPCE/IUUA_STR_ESUB-SUB_TYPE, sy-vline,
  WA_/SAPCE/IUUA_STR_ESUB-SUB_TYPE_LONG, sy-vline,
  WA_/SAPCE/IUUA_STR_ESUB-DEPARTMENT, sy-vline,
  WA_/SAPCE/IUUA_STR_ESUB-DESCRIPTION, sy-vline,
  WA_/SAPCE/IUUA_STR_ESUB-SUBSIDY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPCE/IUUA_STR_ESUB 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_/SAPCE/IUUA_STR_ESUB 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_/SAPCE/IUUA_STR_ESUB INTO WA_/SAPCE/IUUA_STR_ESUB.


*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 VERTRAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCE/IUUA_STR_ESUB-VERTRAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCE/IUUA_STR_ESUB-VERTRAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCE/IUUA_STR_ESUB-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCE/IUUA_STR_ESUB-MEINS.
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_/SAPCE/IUUA_STR_ESUB_STR, 
MANDT TYPE STRING,
VERTRAG TYPE STRING,
FROMDATE TYPE STRING,
DUEDATE TYPE STRING,
AB TYPE STRING,
BIS TYPE STRING,
SUB_TYPE TYPE STRING,
SUB_TYPE_LONG TYPE STRING,
DEPARTMENT TYPE STRING,
DESCRIPTION TYPE STRING,
SUBSIDY TYPE STRING,
COMPULSORY_PAY TYPE STRING,
WAERS TYPE STRING,
CONSUMPTION_AMT TYPE STRING,
MEINS TYPE STRING,
STATUS TYPE STRING,
MANUAL TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
SUBS_LOG_GUID TYPE STRING,
SUB_ITEM TYPE STRING,
RECIPIENT_NAME TYPE STRING,
RECIPIENT_CIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPCE/IUUA_STR_ESUB_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_/SAPCE/IUUA_STR_ESUB_STR-MANDT sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-VERTRAG sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-FROMDATE sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-DUEDATE sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-AB sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-BIS sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-SUB_TYPE sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-SUB_TYPE_LONG sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-DEPARTMENT sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-DESCRIPTION sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-SUBSIDY sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-COMPULSORY_PAY sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-WAERS sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-CONSUMPTION_AMT sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-MEINS sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-STATUS sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-MANUAL sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-ERDAT sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-ERNAM sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-AEDAT sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-AENAM sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-SUBS_LOG_GUID sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-SUB_ITEM sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-RECIPIENT_NAME sy-vline 
WA_/SAPCE/IUUA_STR_ESUB_STR-RECIPIENT_CIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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