ABAP Select data from SAP table ITAGCYPM_CHECK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITAGCYPM_CHECK
*  INTO TABLE @DATA(IT_ITAGCYPM_CHECK2).
*--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_ITAGCYPM_CHECK INDEX 1 INTO DATA(WA_ITAGCYPM_CHECK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITAGCYPM_CHECK>-CLIENT = 1.
<ITAGCYPM_CHECK>-PAYID = 1.
<ITAGCYPM_CHECK>-SEQNO = 1.
<ITAGCYPM_CHECK>-CHCKN = 1.
<ITAGCYPM_CHECK>-XPGRO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITAGCYPM_CHECK-BANKS, sy-vline,
  WA_ITAGCYPM_CHECK-BANKL, sy-vline,
  WA_ITAGCYPM_CHECK-BKONT, sy-vline,
  WA_ITAGCYPM_CHECK-BANKN, sy-vline,
  WA_ITAGCYPM_CHECK-DOCNUMB, sy-vline,
  WA_ITAGCYPM_CHECK-CHCKCAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITAGCYPM_CHECK 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_ITAGCYPM_CHECK 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_ITAGCYPM_CHECK INTO WA_ITAGCYPM_CHECK.


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

*Conversion exit ALPHA, internal->external for field DOCNUMB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITAGCYPM_CHECK-DOCNUMB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITAGCYPM_CHECK-DOCNUMB.
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_ITAGCYPM_CHECK_STR, 
CLIENT TYPE STRING,
PAYID TYPE STRING,
SEQNO TYPE STRING,
CHCKN TYPE STRING,
XPGRO TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BKONT TYPE STRING,
BANKN TYPE STRING,
DOCNUMB TYPE STRING,
CHCKCAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITAGCYPM_CHECK_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_ITAGCYPM_CHECK_STR-CLIENT sy-vline 
WA_ITAGCYPM_CHECK_STR-PAYID sy-vline 
WA_ITAGCYPM_CHECK_STR-SEQNO sy-vline 
WA_ITAGCYPM_CHECK_STR-CHCKN sy-vline 
WA_ITAGCYPM_CHECK_STR-XPGRO sy-vline 
WA_ITAGCYPM_CHECK_STR-BANKS sy-vline 
WA_ITAGCYPM_CHECK_STR-BANKL sy-vline 
WA_ITAGCYPM_CHECK_STR-BKONT sy-vline 
WA_ITAGCYPM_CHECK_STR-BANKN sy-vline 
WA_ITAGCYPM_CHECK_STR-DOCNUMB sy-vline 
WA_ITAGCYPM_CHECK_STR-CHCKCAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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