ABAP Select data from SAP table T7GR2OC 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 T7GR2OC 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 T7GR2OC. 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 T7GR2OC 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_T7GR2OC TYPE STANDARD TABLE OF T7GR2OC,
      WA_T7GR2OC TYPE T7GR2OC,
      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: <T7GR2OC> TYPE T7GR2OC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7GR2OC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7GR2OC
  INTO TABLE IT_T7GR2OC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7GR2OC
*  INTO TABLE @DATA(IT_T7GR2OC2).
*--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_T7GR2OC INDEX 1 INTO DATA(WA_T7GR2OC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7GR2OC ASSIGNING <T7GR2OC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7GR2OC>-MANDT = 1.
<T7GR2OC>-CAREA = 1.
<T7GR2OC>-KOSTL = 1.
<T7GR2OC>-PRSGK = 1.
<T7GR2OC>-ANSVH = 1.

ENDLOOP.

LOOP AT IT_T7GR2OC INTO WA_T7GR2OC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7GR2OC-SPLTY, sy-vline,
  WA_T7GR2OC-SPTY2, sy-vline,
  WA_T7GR2OC-WOSTD, sy-vline,
  WA_T7GR2OC-WKWDY, sy-vline,
  WA_T7GR2OC-TYINS, sy-vline,
  WA_T7GR2OC-ENDDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7GR2OC 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_T7GR2OC 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_T7GR2OC INTO WA_T7GR2OC.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7GR2OC-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7GR2OC-KOSTL.
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_T7GR2OC_STR, 
MANDT TYPE STRING,
CAREA TYPE STRING,
KOSTL TYPE STRING,
PRSGK TYPE STRING,
ANSVH TYPE STRING,
SPLTY TYPE STRING,
SPTY2 TYPE STRING,
WOSTD TYPE STRING,
WKWDY TYPE STRING,
TYINS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
ENTEB TYPE STRING,
MPDEB TYPE STRING,
MCDED TYPE STRING,
FCTEB TYPE STRING,
CLDEB TYPE STRING,
MXDEB TYPE STRING,
WTBEB TYPE STRING,
WTIEB TYPE STRING,
WTLEB TYPE STRING,
ENTCB TYPE STRING,
MPDCB TYPE STRING,
MCDCB TYPE STRING,
FCTCB TYPE STRING,
CLDCB TYPE STRING,
MXDCB TYPE STRING,
WTBCB TYPE STRING,
WTICB TYPE STRING,
WTLCB TYPE STRING,
ENTVB TYPE STRING,
MDMVB TYPE STRING,
MCDVB TYPE STRING,
MLMVB TYPE STRING,
MLXVB TYPE STRING,
WTBVB TYPE STRING,
WTIVB TYPE STRING,
MDAVB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7GR2OC_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_T7GR2OC_STR-MANDT sy-vline 
WA_T7GR2OC_STR-CAREA sy-vline 
WA_T7GR2OC_STR-KOSTL sy-vline 
WA_T7GR2OC_STR-PRSGK sy-vline 
WA_T7GR2OC_STR-ANSVH sy-vline 
WA_T7GR2OC_STR-SPLTY sy-vline 
WA_T7GR2OC_STR-SPTY2 sy-vline 
WA_T7GR2OC_STR-WOSTD sy-vline 
WA_T7GR2OC_STR-WKWDY sy-vline 
WA_T7GR2OC_STR-TYINS sy-vline 
WA_T7GR2OC_STR-ENDDA sy-vline 
WA_T7GR2OC_STR-BEGDA sy-vline 
WA_T7GR2OC_STR-ENTEB sy-vline 
WA_T7GR2OC_STR-MPDEB sy-vline 
WA_T7GR2OC_STR-MCDED sy-vline 
WA_T7GR2OC_STR-FCTEB sy-vline 
WA_T7GR2OC_STR-CLDEB sy-vline 
WA_T7GR2OC_STR-MXDEB sy-vline 
WA_T7GR2OC_STR-WTBEB sy-vline 
WA_T7GR2OC_STR-WTIEB sy-vline 
WA_T7GR2OC_STR-WTLEB sy-vline 
WA_T7GR2OC_STR-ENTCB sy-vline 
WA_T7GR2OC_STR-MPDCB sy-vline 
WA_T7GR2OC_STR-MCDCB sy-vline 
WA_T7GR2OC_STR-FCTCB sy-vline 
WA_T7GR2OC_STR-CLDCB sy-vline 
WA_T7GR2OC_STR-MXDCB sy-vline 
WA_T7GR2OC_STR-WTBCB sy-vline 
WA_T7GR2OC_STR-WTICB sy-vline 
WA_T7GR2OC_STR-WTLCB sy-vline 
WA_T7GR2OC_STR-ENTVB sy-vline 
WA_T7GR2OC_STR-MDMVB sy-vline 
WA_T7GR2OC_STR-MCDVB sy-vline 
WA_T7GR2OC_STR-MLMVB sy-vline 
WA_T7GR2OC_STR-MLXVB sy-vline 
WA_T7GR2OC_STR-WTBVB sy-vline 
WA_T7GR2OC_STR-WTIVB sy-vline 
WA_T7GR2OC_STR-MDAVB sy-vline      INTO ld_text SEPARATED BY SPACE.

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