ABAP Select data from SAP table T000 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 T000 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 T000. 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 T000 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_T000 TYPE STANDARD TABLE OF T000,
      WA_T000 TYPE T000,
      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: <T000> TYPE T000.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T000.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T000
  INTO TABLE IT_T000.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T000
*  INTO TABLE @DATA(IT_T0002).
*--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_T000 INDEX 1 INTO DATA(WA_T0002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T000 ASSIGNING <T000>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T000>-MANDT = 1.
<T000>-MTEXT = 1.
<T000>-ORT01 = 1.
<T000>-MWAER = 1.
<T000>-ADRNR = 1.

ENDLOOP.

LOOP AT IT_T000 INTO WA_T000.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T000-CCCATEGORY, sy-vline,
  WA_T000-CCCORACTIV, sy-vline,
  WA_T000-CCNOCLIIND, sy-vline,
  WA_T000-CCCOPYLOCK, sy-vline,
  WA_T000-CCNOCASCAD, sy-vline,
  WA_T000-CCSOFTLOCK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T000 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_T000 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_T000 INTO WA_T000.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T000-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T000-LOGSYS.
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_T000_STR, 
MANDT TYPE STRING,
MTEXT TYPE STRING,
ORT01 TYPE STRING,
MWAER TYPE STRING,
ADRNR TYPE STRING,
CCCATEGORY TYPE STRING,
CCCORACTIV TYPE STRING,
CCNOCLIIND TYPE STRING,
CCCOPYLOCK TYPE STRING,
CCNOCASCAD TYPE STRING,
CCSOFTLOCK TYPE STRING,
CCORIGCONT TYPE STRING,
CCIMAILDIS TYPE STRING,
CCTEMPLOCK TYPE STRING,
CHANGEUSER TYPE STRING,
CHANGEDATE TYPE STRING,
LOGSYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T000_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_T000_STR-MANDT sy-vline 
WA_T000_STR-MTEXT sy-vline 
WA_T000_STR-ORT01 sy-vline 
WA_T000_STR-MWAER sy-vline 
WA_T000_STR-ADRNR sy-vline 
WA_T000_STR-CCCATEGORY sy-vline 
WA_T000_STR-CCCORACTIV sy-vline 
WA_T000_STR-CCNOCLIIND sy-vline 
WA_T000_STR-CCCOPYLOCK sy-vline 
WA_T000_STR-CCNOCASCAD sy-vline 
WA_T000_STR-CCSOFTLOCK sy-vline 
WA_T000_STR-CCORIGCONT sy-vline 
WA_T000_STR-CCIMAILDIS sy-vline 
WA_T000_STR-CCTEMPLOCK sy-vline 
WA_T000_STR-CHANGEUSER sy-vline 
WA_T000_STR-CHANGEDATE sy-vline 
WA_T000_STR-LOGSYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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