ABAP Select data from SAP table ITAGCYTCBP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITAGCYTCBP
*  INTO TABLE @DATA(IT_ITAGCYTCBP2).
*--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_ITAGCYTCBP INDEX 1 INTO DATA(WA_ITAGCYTCBP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITAGCYTCBP>-CLIENT = 1.
<ITAGCYTCBP>-OPBEL = 1.
<ITAGCYTCBP>-GPART = 1.
<ITAGCYTCBP>-VTREF = 1.
<ITAGCYTCBP>-XBLNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITAGCYTCBP-BETRW, sy-vline,
  WA_ITAGCYTCBP-WAERS, sy-vline,
  WA_ITAGCYTCBP-BUKRS, sy-vline,
  WA_ITAGCYTCBP-FAEDN, sy-vline,
  WA_ITAGCYTCBP-ECONTR, sy-vline,
  WA_ITAGCYTCBP-LOBUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITAGCYTCBP 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_ITAGCYTCBP 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_ITAGCYTCBP INTO WA_ITAGCYTCBP.


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

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

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

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

*Conversion exit ALPHA, internal->external for field OPCOMM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITAGCYTCBP-OPCOMM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITAGCYTCBP-OPCOMM.
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_ITAGCYTCBP_STR, 
CLIENT TYPE STRING,
OPBEL TYPE STRING,
GPART TYPE STRING,
VTREF TYPE STRING,
XBLNR TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
BUKRS TYPE STRING,
FAEDN TYPE STRING,
ECONTR TYPE STRING,
LOBUS TYPE STRING,
POLTY TYPE STRING,
REASON TYPE STRING,
INFO TYPE STRING,
TCPOP TYPE STRING,
OPCOMM TYPE STRING,
AUGST TYPE STRING,
CRDATE TYPE STRING,
RECEIPT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITAGCYTCBP_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_ITAGCYTCBP_STR-CLIENT sy-vline 
WA_ITAGCYTCBP_STR-OPBEL sy-vline 
WA_ITAGCYTCBP_STR-GPART sy-vline 
WA_ITAGCYTCBP_STR-VTREF sy-vline 
WA_ITAGCYTCBP_STR-XBLNR sy-vline 
WA_ITAGCYTCBP_STR-BETRW sy-vline 
WA_ITAGCYTCBP_STR-WAERS sy-vline 
WA_ITAGCYTCBP_STR-BUKRS sy-vline 
WA_ITAGCYTCBP_STR-FAEDN sy-vline 
WA_ITAGCYTCBP_STR-ECONTR sy-vline 
WA_ITAGCYTCBP_STR-LOBUS sy-vline 
WA_ITAGCYTCBP_STR-POLTY sy-vline 
WA_ITAGCYTCBP_STR-REASON sy-vline 
WA_ITAGCYTCBP_STR-INFO sy-vline 
WA_ITAGCYTCBP_STR-TCPOP sy-vline 
WA_ITAGCYTCBP_STR-OPCOMM sy-vline 
WA_ITAGCYTCBP_STR-AUGST sy-vline 
WA_ITAGCYTCBP_STR-CRDATE sy-vline 
WA_ITAGCYTCBP_STR-RECEIPT sy-vline      INTO ld_text SEPARATED BY SPACE.

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