ABAP Select data from SAP table T049E into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T049E 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 T049E. 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 T049E 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_T049E TYPE STANDARD TABLE OF T049E,
      WA_T049E TYPE T049E,
      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: <T049E> TYPE T049E.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T049E.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T049E
  INTO TABLE IT_T049E.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T049E
*  INTO TABLE @DATA(IT_T049E2).
*--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_T049E INDEX 1 INTO DATA(WA_T049E2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T049E ASSIGNING <T049E>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T049E>-MANDT = 1.
<T049E>-TEILN = 1.
<T049E>-KUNID = 1.
<T049E>-BUKRS = 1.
<T049E>-BUFLG = 1.

ENDLOOP.

LOOP AT IT_T049E INTO WA_T049E.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T049E-SAKOZ, sy-vline,
  WA_T049E-SAKOV, sy-vline,
  WA_T049E-BLART, sy-vline,
  WA_T049E-OFSET, sy-vline,
  WA_T049E-LBLNR, sy-vline,
  WA_T049E-OFKND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T049E 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_T049E 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_T049E INTO WA_T049E.


*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 SAKOV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T049E-SAKOV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T049E-SAKOV.
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_T049E_STR, 
MANDT TYPE STRING,
TEILN TYPE STRING,
KUNID TYPE STRING,
BUKRS TYPE STRING,
BUFLG TYPE STRING,
SAKOZ TYPE STRING,
SAKOV TYPE STRING,
BLART TYPE STRING,
OFSET TYPE STRING,
LBLNR TYPE STRING,
OFKND TYPE STRING,
LKDNR TYPE STRING,
VKORG TYPE STRING,
BANKL TYPE STRING,
NOTAKT TYPE STRING,
VERFA TYPE STRING,
XMESR TYPE STRING,
APPLK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T049E_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_T049E_STR-MANDT sy-vline 
WA_T049E_STR-TEILN sy-vline 
WA_T049E_STR-KUNID sy-vline 
WA_T049E_STR-BUKRS sy-vline 
WA_T049E_STR-BUFLG sy-vline 
WA_T049E_STR-SAKOZ sy-vline 
WA_T049E_STR-SAKOV sy-vline 
WA_T049E_STR-BLART sy-vline 
WA_T049E_STR-OFSET sy-vline 
WA_T049E_STR-LBLNR sy-vline 
WA_T049E_STR-OFKND sy-vline 
WA_T049E_STR-LKDNR sy-vline 
WA_T049E_STR-VKORG sy-vline 
WA_T049E_STR-BANKL sy-vline 
WA_T049E_STR-NOTAKT sy-vline 
WA_T049E_STR-VERFA sy-vline 
WA_T049E_STR-XMESR sy-vline 
WA_T049E_STR-APPLK sy-vline      INTO ld_text SEPARATED BY SPACE.

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