ABAP Select data from SAP table V_T7CO01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T7CO01 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 V_T7CO01. 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 V_T7CO01 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_V_T7CO01 TYPE STANDARD TABLE OF V_T7CO01,
      WA_V_T7CO01 TYPE V_T7CO01,
      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: <V_T7CO01> TYPE V_T7CO01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T7CO01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T7CO01
  INTO TABLE IT_V_T7CO01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T7CO01
*  INTO TABLE @DATA(IT_V_T7CO012).
*--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_V_T7CO01 INDEX 1 INTO DATA(WA_V_T7CO012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T7CO01 ASSIGNING <V_T7CO01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T7CO01>-MANDT = 1.
<V_T7CO01>-BUKRS = 1.
<V_T7CO01>-ENDDA = 1.
<V_T7CO01>-BEGDA = 1.
<V_T7CO01>-BUTXT = 1.

ENDLOOP.

LOOP AT IT_V_T7CO01 INTO WA_V_T7CO01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T7CO01-REPLE, sy-vline,
  WA_V_T7CO01-REPPY, sy-vline,
  WA_V_T7CO01-TELNR, sy-vline,
  WA_V_T7CO01-FAXNR, sy-vline,
  WA_V_T7CO01-LAND1, sy-vline,
  WA_V_T7CO01-LANDX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T7CO01 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_V_T7CO01 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_V_T7CO01 INTO WA_V_T7CO01.


*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 ENARP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T7CO01-ENARP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T7CO01-ENARP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ESENA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T7CO01-ESENA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T7CO01-ESENA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EICBF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T7CO01-EICBF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T7CO01-EICBF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EESAP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T7CO01-EESAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T7CO01-EESAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EMEDU
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T7CO01-EMEDU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T7CO01-EMEDU.
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_V_T7CO01_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
BUTXT TYPE STRING,
REPLE TYPE STRING,
REPPY TYPE STRING,
TELNR TYPE STRING,
FAXNR TYPE STRING,
LAND1 TYPE STRING,
LANDX TYPE STRING,
BLAND TYPE STRING,
BEZEIC TYPE STRING,
CITYC TYPE STRING,
BEZEI TYPE STRING,
ADRES TYPE STRING,
NITNR TYPE STRING,
DIGNR TYPE STRING,
PATNR TYPE STRING,
PORIM TYPE STRING,
EMAIL TYPE STRING,
TYPID TYPE STRING,
BRANC TYPE STRING,
TEXT TYPE STRING,
CLACO TYPE STRING,
BUKTY TYPE STRING,
BUPER TYPE STRING,
PRESE TYPE STRING,
PCEPS TYPE STRING,
PCAFP TYPE STRING,
ENARP TYPE STRING,
PCFIA TYPE STRING,
IDOPE TYPE STRING,
ESENA TYPE STRING,
EICBF TYPE STRING,
EESAP TYPE STRING,
EMEDU TYPE STRING,
TPAGP TYPE STRING,
AWART TYPE STRING,
TYPAP TYPE STRING,
ECREE TYPE STRING,
NEW_TYPAP TYPE STRING,
CSCON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T7CO01_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_V_T7CO01_STR-MANDT sy-vline 
WA_V_T7CO01_STR-BUKRS sy-vline 
WA_V_T7CO01_STR-ENDDA sy-vline 
WA_V_T7CO01_STR-BEGDA sy-vline 
WA_V_T7CO01_STR-BUTXT sy-vline 
WA_V_T7CO01_STR-REPLE sy-vline 
WA_V_T7CO01_STR-REPPY sy-vline 
WA_V_T7CO01_STR-TELNR sy-vline 
WA_V_T7CO01_STR-FAXNR sy-vline 
WA_V_T7CO01_STR-LAND1 sy-vline 
WA_V_T7CO01_STR-LANDX sy-vline 
WA_V_T7CO01_STR-BLAND sy-vline 
WA_V_T7CO01_STR-BEZEIC sy-vline 
WA_V_T7CO01_STR-CITYC sy-vline 
WA_V_T7CO01_STR-BEZEI sy-vline 
WA_V_T7CO01_STR-ADRES sy-vline 
WA_V_T7CO01_STR-NITNR sy-vline 
WA_V_T7CO01_STR-DIGNR sy-vline 
WA_V_T7CO01_STR-PATNR sy-vline 
WA_V_T7CO01_STR-PORIM sy-vline 
WA_V_T7CO01_STR-EMAIL sy-vline 
WA_V_T7CO01_STR-TYPID sy-vline 
WA_V_T7CO01_STR-BRANC sy-vline 
WA_V_T7CO01_STR-TEXT sy-vline 
WA_V_T7CO01_STR-CLACO sy-vline 
WA_V_T7CO01_STR-BUKTY sy-vline 
WA_V_T7CO01_STR-BUPER sy-vline 
WA_V_T7CO01_STR-PRESE sy-vline 
WA_V_T7CO01_STR-PCEPS sy-vline 
WA_V_T7CO01_STR-PCAFP sy-vline 
WA_V_T7CO01_STR-ENARP sy-vline 
WA_V_T7CO01_STR-PCFIA sy-vline 
WA_V_T7CO01_STR-IDOPE sy-vline 
WA_V_T7CO01_STR-ESENA sy-vline 
WA_V_T7CO01_STR-EICBF sy-vline 
WA_V_T7CO01_STR-EESAP sy-vline 
WA_V_T7CO01_STR-EMEDU sy-vline 
WA_V_T7CO01_STR-TPAGP sy-vline 
WA_V_T7CO01_STR-AWART sy-vline 
WA_V_T7CO01_STR-TYPAP sy-vline 
WA_V_T7CO01_STR-ECREE sy-vline 
WA_V_T7CO01_STR-NEW_TYPAP sy-vline 
WA_V_T7CO01_STR-CSCON sy-vline      INTO ld_text SEPARATED BY SPACE.

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