ABAP Select data from SAP table T606H into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T606H 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 T606H. 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 T606H 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_T606H TYPE STANDARD TABLE OF T606H,
      WA_T606H TYPE T606H,
      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: <T606H> TYPE T606H.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T606H.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T606H
  INTO TABLE IT_T606H.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T606H
*  INTO TABLE @DATA(IT_T606H2).
*--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_T606H INDEX 1 INTO DATA(WA_T606H2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T606H ASSIGNING <T606H>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T606H>-MANDT = 1.
<T606H>-GEGRU = 1.
<T606H>-ALNUM = 1.
<T606H>-REGIM = 1.
<T606H>-CCC01 = 1.

ENDLOOP.

LOOP AT IT_T606H INTO WA_T606H.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T606H-CCC02, sy-vline,
  WA_T606H-CCC03, sy-vline,
  WA_T606H-CCC04, sy-vline,
  WA_T606H-CCC05, sy-vline,
  WA_T606H-CCC06, sy-vline,
  WA_T606H-CCC07, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T606H 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_T606H 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_T606H INTO WA_T606H.


*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_T606H_STR, 
MANDT TYPE STRING,
GEGRU TYPE STRING,
ALNUM TYPE STRING,
REGIM TYPE STRING,
CCC01 TYPE STRING,
CCC02 TYPE STRING,
CCC03 TYPE STRING,
CCC04 TYPE STRING,
CCC05 TYPE STRING,
CCC06 TYPE STRING,
CCC07 TYPE STRING,
CBCO1 TYPE STRING,
CBCO2 TYPE STRING,
CBCO3 TYPE STRING,
NPCO1 TYPE STRING,
NPCO2 TYPE STRING,
NSCO1 TYPE STRING,
NSCO2 TYPE STRING,
MTCO1 TYPE STRING,
RSCO1 TYPE STRING,
RSCO2 TYPE STRING,
CCCO1 TYPE STRING,
CCCO2 TYPE STRING,
CCCO3 TYPE STRING,
ATCO1 TYPE STRING,
ATCO2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T606H_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_T606H_STR-MANDT sy-vline 
WA_T606H_STR-GEGRU sy-vline 
WA_T606H_STR-ALNUM sy-vline 
WA_T606H_STR-REGIM sy-vline 
WA_T606H_STR-CCC01 sy-vline 
WA_T606H_STR-CCC02 sy-vline 
WA_T606H_STR-CCC03 sy-vline 
WA_T606H_STR-CCC04 sy-vline 
WA_T606H_STR-CCC05 sy-vline 
WA_T606H_STR-CCC06 sy-vline 
WA_T606H_STR-CCC07 sy-vline 
WA_T606H_STR-CBCO1 sy-vline 
WA_T606H_STR-CBCO2 sy-vline 
WA_T606H_STR-CBCO3 sy-vline 
WA_T606H_STR-NPCO1 sy-vline 
WA_T606H_STR-NPCO2 sy-vline 
WA_T606H_STR-NSCO1 sy-vline 
WA_T606H_STR-NSCO2 sy-vline 
WA_T606H_STR-MTCO1 sy-vline 
WA_T606H_STR-RSCO1 sy-vline 
WA_T606H_STR-RSCO2 sy-vline 
WA_T606H_STR-CCCO1 sy-vline 
WA_T606H_STR-CCCO2 sy-vline 
WA_T606H_STR-CCCO3 sy-vline 
WA_T606H_STR-ATCO1 sy-vline 
WA_T606H_STR-ATCO2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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