ABAP Select data from SAP table T7COT9 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7COT9 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 T7COT9. 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 T7COT9 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_T7COT9 TYPE STANDARD TABLE OF T7COT9,
      WA_T7COT9 TYPE T7COT9,
      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: <T7COT9> TYPE T7COT9.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7COT9.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7COT9
  INTO TABLE IT_T7COT9.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7COT9
*  INTO TABLE @DATA(IT_T7COT92).
*--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_T7COT9 INDEX 1 INTO DATA(WA_T7COT92).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7COT9 ASSIGNING <T7COT9>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7COT9>-MANDT = 1.
<T7COT9>-PERNR = 1.
<T7COT9>-SEQNO = 1.
<T7COT9>-SEQN2 = 1.
<T7COT9>-TRPROV = 1.

ENDLOOP.

LOOP AT IT_T7COT9 INTO WA_T7COT9.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7COT9-VBASE, sy-vline,
  WA_T7COT9-WORKD, sy-vline,
  WA_T7COT9-NBALD, sy-vline,
  WA_T7COT9-NBALV, sy-vline,
  WA_T7COT9-PBALD, sy-vline,
  WA_T7COT9-PBALV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7COT9 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_T7COT9 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_T7COT9 INTO WA_T7COT9.


*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_T7COT9_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
SEQNO TYPE STRING,
SEQN2 TYPE STRING,
TRPROV TYPE STRING,
VBASE TYPE STRING,
WORKD TYPE STRING,
NBALD TYPE STRING,
NBALV TYPE STRING,
PBALD TYPE STRING,
PBALV TYPE STRING,
CAUSD TYPE STRING,
CAUSV TYPE STRING,
APAYD TYPE STRING,
APAYV TYPE STRING,
CPAYD TYPE STRING,
CPAYV TYPE STRING,
PNPYD TYPE STRING,
PNPYV TYPE STRING,
VCSTD TYPE STRING,
VCSTV TYPE STRING,
VBASE_CURR TYPE STRING,
NBALV_CURR TYPE STRING,
PBALV_CURR TYPE STRING,
APAYV_CURR TYPE STRING,
PNPYV_CURR TYPE STRING,
VCSTV_CURR TYPE STRING,
CAUSV_CURR TYPE STRING,
CPAYV_CURR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7COT9_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_T7COT9_STR-MANDT sy-vline 
WA_T7COT9_STR-PERNR sy-vline 
WA_T7COT9_STR-SEQNO sy-vline 
WA_T7COT9_STR-SEQN2 sy-vline 
WA_T7COT9_STR-TRPROV sy-vline 
WA_T7COT9_STR-VBASE sy-vline 
WA_T7COT9_STR-WORKD sy-vline 
WA_T7COT9_STR-NBALD sy-vline 
WA_T7COT9_STR-NBALV sy-vline 
WA_T7COT9_STR-PBALD sy-vline 
WA_T7COT9_STR-PBALV sy-vline 
WA_T7COT9_STR-CAUSD sy-vline 
WA_T7COT9_STR-CAUSV sy-vline 
WA_T7COT9_STR-APAYD sy-vline 
WA_T7COT9_STR-APAYV sy-vline 
WA_T7COT9_STR-CPAYD sy-vline 
WA_T7COT9_STR-CPAYV sy-vline 
WA_T7COT9_STR-PNPYD sy-vline 
WA_T7COT9_STR-PNPYV sy-vline 
WA_T7COT9_STR-VCSTD sy-vline 
WA_T7COT9_STR-VCSTV sy-vline 
WA_T7COT9_STR-VBASE_CURR sy-vline 
WA_T7COT9_STR-NBALV_CURR sy-vline 
WA_T7COT9_STR-PBALV_CURR sy-vline 
WA_T7COT9_STR-APAYV_CURR sy-vline 
WA_T7COT9_STR-PNPYV_CURR sy-vline 
WA_T7COT9_STR-VCSTV_CURR sy-vline 
WA_T7COT9_STR-CAUSV_CURR sy-vline 
WA_T7COT9_STR-CPAYV_CURR sy-vline      INTO ld_text SEPARATED BY SPACE.

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