ABAP Select data from SAP table SCHEDMAN_FLAGS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SCHEDMAN_FLAGS
*  INTO TABLE @DATA(IT_SCHEDMAN_FLAGS2).
*--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_SCHEDMAN_FLAGS INDEX 1 INTO DATA(WA_SCHEDMAN_FLAGS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SCHEDMAN_FLAGS>-BATCHFLAG = 1.
<SCHEDMAN_FLAGS>-SELKRITFLAG = 1.
<SCHEDMAN_FLAGS>-MESSAGEFLAG = 1.
<SCHEDMAN_FLAGS>-PARAMETERFLAG = 1.
<SCHEDMAN_FLAGS>-RESULTLISTFLAG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SCHEDMAN_FLAGS-STATUSFLAG, sy-vline,
  WA_SCHEDMAN_FLAGS-SPECIFICFLAG, sy-vline,
  WA_SCHEDMAN_FLAGS-SPOOLLISTFLAG, sy-vline,
  WA_SCHEDMAN_FLAGS-EXTFLAG, sy-vline,
  WA_SCHEDMAN_FLAGS-WFFLAG, sy-vline,
  WA_SCHEDMAN_FLAGS-WORKLISTFLAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SCHEDMAN_FLAGS 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_SCHEDMAN_FLAGS 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_SCHEDMAN_FLAGS INTO WA_SCHEDMAN_FLAGS.


*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_SCHEDMAN_FLAGS_STR, 
BATCHFLAG TYPE STRING,
SELKRITFLAG TYPE STRING,
MESSAGEFLAG TYPE STRING,
PARAMETERFLAG TYPE STRING,
RESULTLISTFLAG TYPE STRING,
STATUSFLAG TYPE STRING,
SPECIFICFLAG TYPE STRING,
SPOOLLISTFLAG TYPE STRING,
EXTFLAG TYPE STRING,
WFFLAG TYPE STRING,
WORKLISTFLAG TYPE STRING,
POSTING_FINISHED TYPE STRING,
ERROR_IN_POSTING TYPE STRING,
ONELISTFLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SCHEDMAN_FLAGS_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_SCHEDMAN_FLAGS_STR-BATCHFLAG sy-vline 
WA_SCHEDMAN_FLAGS_STR-SELKRITFLAG sy-vline 
WA_SCHEDMAN_FLAGS_STR-MESSAGEFLAG sy-vline 
WA_SCHEDMAN_FLAGS_STR-PARAMETERFLAG sy-vline 
WA_SCHEDMAN_FLAGS_STR-RESULTLISTFLAG sy-vline 
WA_SCHEDMAN_FLAGS_STR-STATUSFLAG sy-vline 
WA_SCHEDMAN_FLAGS_STR-SPECIFICFLAG sy-vline 
WA_SCHEDMAN_FLAGS_STR-SPOOLLISTFLAG sy-vline 
WA_SCHEDMAN_FLAGS_STR-EXTFLAG sy-vline 
WA_SCHEDMAN_FLAGS_STR-WFFLAG sy-vline 
WA_SCHEDMAN_FLAGS_STR-WORKLISTFLAG sy-vline 
WA_SCHEDMAN_FLAGS_STR-POSTING_FINISHED sy-vline 
WA_SCHEDMAN_FLAGS_STR-ERROR_IN_POSTING sy-vline 
WA_SCHEDMAN_FLAGS_STR-ONELISTFLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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