ABAP Select data from SAP table FMTC_SCHNO 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 FMTC_SCHNO 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 FMTC_SCHNO. 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 FMTC_SCHNO 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_FMTC_SCHNO TYPE STANDARD TABLE OF FMTC_SCHNO,
      WA_FMTC_SCHNO TYPE FMTC_SCHNO,
      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: <FMTC_SCHNO> TYPE FMTC_SCHNO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMTC_SCHNO
*  INTO TABLE @DATA(IT_FMTC_SCHNO2).
*--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_FMTC_SCHNO INDEX 1 INTO DATA(WA_FMTC_SCHNO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMTC_SCHNO>-MANDT = 1.
<FMTC_SCHNO>-SCHEDULENO = 1.
<FMTC_SCHNO>-LAUFD = 1.
<FMTC_SCHNO>-LAUFI = 1.
<FMTC_SCHNO>-RZAWE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMTC_SCHNO-ALC, sy-vline,
  WA_FMTC_SCHNO-PMT_OFFICE, sy-vline,
  WA_FMTC_SCHNO-FILE_NBR, sy-vline,
  WA_FMTC_SCHNO-CONFD, sy-vline,
  WA_FMTC_SCHNO-POSTD, sy-vline,
  WA_FMTC_SCHNO-AZNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMTC_SCHNO 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_FMTC_SCHNO 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_FMTC_SCHNO INTO WA_FMTC_SCHNO.


*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_FMTC_SCHNO_STR, 
MANDT TYPE STRING,
SCHEDULENO TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
RZAWE TYPE STRING,
ALC TYPE STRING,
PMT_OFFICE TYPE STRING,
FILE_NBR TYPE STRING,
CONFD TYPE STRING,
POSTD TYPE STRING,
AZNUM TYPE STRING,
CHKRG TYPE STRING,
CHECF TYPE STRING,
CHECT TYPE STRING,
AMOUNT TYPE STRING,
STATUS TYPE STRING,
CONTROLNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMTC_SCHNO_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_FMTC_SCHNO_STR-MANDT sy-vline 
WA_FMTC_SCHNO_STR-SCHEDULENO sy-vline 
WA_FMTC_SCHNO_STR-LAUFD sy-vline 
WA_FMTC_SCHNO_STR-LAUFI sy-vline 
WA_FMTC_SCHNO_STR-RZAWE sy-vline 
WA_FMTC_SCHNO_STR-ALC sy-vline 
WA_FMTC_SCHNO_STR-PMT_OFFICE sy-vline 
WA_FMTC_SCHNO_STR-FILE_NBR sy-vline 
WA_FMTC_SCHNO_STR-CONFD sy-vline 
WA_FMTC_SCHNO_STR-POSTD sy-vline 
WA_FMTC_SCHNO_STR-AZNUM sy-vline 
WA_FMTC_SCHNO_STR-CHKRG sy-vline 
WA_FMTC_SCHNO_STR-CHECF sy-vline 
WA_FMTC_SCHNO_STR-CHECT sy-vline 
WA_FMTC_SCHNO_STR-AMOUNT sy-vline 
WA_FMTC_SCHNO_STR-STATUS sy-vline 
WA_FMTC_SCHNO_STR-CONTROLNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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