ABAP Select data from SAP table FRMLS_IOT_SRC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FRMLS_IOT_SRC
*  INTO TABLE @DATA(IT_FRMLS_IOT_SRC2).
*--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_FRMLS_IOT_SRC INDEX 1 INTO DATA(WA_FRMLS_IOT_SRC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FRMLS_IOT_SRC>-MARKFLG = 1.
<FRMLS_IOT_SRC>-SELEFLG = 1.
<FRMLS_IOT_SRC>-LINENO = 1.
<FRMLS_IOT_SRC>-LINEMOD = 1.
<FRMLS_IOT_SRC>-CHCOFLG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FRMLS_IOT_SRC-LOCKMOD, sy-vline,
  WA_FRMLS_IOT_SRC-INTRFLG, sy-vline,
  WA_FRMLS_IOT_SRC-MANDT, sy-vline,
  WA_FRMLS_IOT_SRC-RECN, sy-vline,
  WA_FRMLS_IOT_SRC-RECNMST, sy-vline,
  WA_FRMLS_IOT_SRC-RECNROOT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FRMLS_IOT_SRC 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_FRMLS_IOT_SRC 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_FRMLS_IOT_SRC INTO WA_FRMLS_IOT_SRC.


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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_FRMLS_IOT_SRC-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FRMLS_IOT_SRC-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPEC1, internal->external for field SUBID
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_FRMLS_IOT_SRC-SUBID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FRMLS_IOT_SRC-SUBID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FRMLS_IOT_SRC-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FRMLS_IOT_SRC-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR_INPUT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_FRMLS_IOT_SRC-MATNR_INPUT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FRMLS_IOT_SRC-MATNR_INPUT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPEC1, internal->external for field SUBID_INPUT
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_FRMLS_IOT_SRC-SUBID_INPUT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FRMLS_IOT_SRC-SUBID_INPUT.
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_FRMLS_IOT_SRC_STR, 
MARKFLG TYPE STRING,
SELEFLG TYPE STRING,
LINENO TYPE STRING,
LINEMOD TYPE STRING,
CHCOFLG TYPE STRING,
LOCKMOD TYPE STRING,
INTRFLG TYPE STRING,
MANDT TYPE STRING,
RECN TYPE STRING,
RECNMST TYPE STRING,
RECNROOT TYPE STRING,
RECNALGRP TYPE STRING,
RECN_DATA TYPE STRING,
SUBRECN TYPE STRING,
ACTN TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
SUBID TYPE STRING,
IDENT TYPE STRING,
STREAM_ID TYPE STRING,
STREAMTX TYPE STRING,
POSNR TYPE STRING,
ROLE TYPE STRING,
STD_ALT_FLG TYPE STRING,
FLG_ALT_EXIST TYPE STRING,
ALT_POSNR TYPE STRING,
PO_FLG TYPE STRING,
COMPTGT TYPE STRING,
COMPTGT_ERR_FLG TYPE STRING,
OPLOW TYPE STRING,
COMPLOW TYPE STRING,
OPUP TYPE STRING,
COMPUPP TYPE STRING,
UNIT TYPE STRING,
EXCVAL TYPE STRING,
ADDVAL TYPE STRING,
COMPTGT_FLT TYPE STRING,
COMPLOW_FLT TYPE STRING,
COMPUPP_FLT TYPE STRING,
OVR_FACTOR TYPE STRING,
EXCVAL_TXT TYPE STRING,
DEF_EXPL_FLG TYPE STRING,
INVISIBLE_FLG TYPE STRING,
IDENT2 TYPE STRING,
FLG_NEG TYPE STRING,
ROLENAME TYPE STRING,
FLG_IS_OUT TYPE STRING,
FLG_1_N_MAT TYPE STRING,
SEARCH_MODE TYPE STRING,
FLG_MODIFIED TYPE STRING,
POSNR_OLD TYPE STRING,
FLG_HAS_1_N_MAT TYPE STRING,
FLG_OUT TYPE STRING,
STREAM_FLG TYPE STRING,
PO_SRC_FLG TYPE STRING,
SEC_SRC_FLG TYPE STRING,
MATNR_INPUT TYPE STRING,
MAKTX_INPUT TYPE STRING,
SUBID_INPUT TYPE STRING,
IDENT_INPUT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FRMLS_IOT_SRC_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_FRMLS_IOT_SRC_STR-MARKFLG sy-vline 
WA_FRMLS_IOT_SRC_STR-SELEFLG sy-vline 
WA_FRMLS_IOT_SRC_STR-LINENO sy-vline 
WA_FRMLS_IOT_SRC_STR-LINEMOD sy-vline 
WA_FRMLS_IOT_SRC_STR-CHCOFLG sy-vline 
WA_FRMLS_IOT_SRC_STR-LOCKMOD sy-vline 
WA_FRMLS_IOT_SRC_STR-INTRFLG sy-vline 
WA_FRMLS_IOT_SRC_STR-MANDT sy-vline 
WA_FRMLS_IOT_SRC_STR-RECN sy-vline 
WA_FRMLS_IOT_SRC_STR-RECNMST sy-vline 
WA_FRMLS_IOT_SRC_STR-RECNROOT sy-vline 
WA_FRMLS_IOT_SRC_STR-RECNALGRP sy-vline 
WA_FRMLS_IOT_SRC_STR-RECN_DATA sy-vline 
WA_FRMLS_IOT_SRC_STR-SUBRECN sy-vline 
WA_FRMLS_IOT_SRC_STR-ACTN sy-vline 
WA_FRMLS_IOT_SRC_STR-MATNR sy-vline 
WA_FRMLS_IOT_SRC_STR-MAKTX sy-vline 
WA_FRMLS_IOT_SRC_STR-SUBID sy-vline 
WA_FRMLS_IOT_SRC_STR-IDENT sy-vline 
WA_FRMLS_IOT_SRC_STR-STREAM_ID sy-vline 
WA_FRMLS_IOT_SRC_STR-STREAMTX sy-vline 
WA_FRMLS_IOT_SRC_STR-POSNR sy-vline 
WA_FRMLS_IOT_SRC_STR-ROLE sy-vline 
WA_FRMLS_IOT_SRC_STR-STD_ALT_FLG sy-vline 
WA_FRMLS_IOT_SRC_STR-FLG_ALT_EXIST sy-vline 
WA_FRMLS_IOT_SRC_STR-ALT_POSNR sy-vline 
WA_FRMLS_IOT_SRC_STR-PO_FLG sy-vline 
WA_FRMLS_IOT_SRC_STR-COMPTGT sy-vline 
WA_FRMLS_IOT_SRC_STR-COMPTGT_ERR_FLG sy-vline 
WA_FRMLS_IOT_SRC_STR-OPLOW sy-vline 
WA_FRMLS_IOT_SRC_STR-COMPLOW sy-vline 
WA_FRMLS_IOT_SRC_STR-OPUP sy-vline 
WA_FRMLS_IOT_SRC_STR-COMPUPP sy-vline 
WA_FRMLS_IOT_SRC_STR-UNIT sy-vline 
WA_FRMLS_IOT_SRC_STR-EXCVAL sy-vline 
WA_FRMLS_IOT_SRC_STR-ADDVAL sy-vline 
WA_FRMLS_IOT_SRC_STR-COMPTGT_FLT sy-vline 
WA_FRMLS_IOT_SRC_STR-COMPLOW_FLT sy-vline 
WA_FRMLS_IOT_SRC_STR-COMPUPP_FLT sy-vline 
WA_FRMLS_IOT_SRC_STR-OVR_FACTOR sy-vline 
WA_FRMLS_IOT_SRC_STR-EXCVAL_TXT sy-vline 
WA_FRMLS_IOT_SRC_STR-DEF_EXPL_FLG sy-vline 
WA_FRMLS_IOT_SRC_STR-INVISIBLE_FLG sy-vline 
WA_FRMLS_IOT_SRC_STR-IDENT2 sy-vline 
WA_FRMLS_IOT_SRC_STR-FLG_NEG sy-vline 
WA_FRMLS_IOT_SRC_STR-ROLENAME sy-vline 
WA_FRMLS_IOT_SRC_STR-FLG_IS_OUT sy-vline 
WA_FRMLS_IOT_SRC_STR-FLG_1_N_MAT sy-vline 
WA_FRMLS_IOT_SRC_STR-SEARCH_MODE sy-vline 
WA_FRMLS_IOT_SRC_STR-FLG_MODIFIED sy-vline 
WA_FRMLS_IOT_SRC_STR-POSNR_OLD sy-vline 
WA_FRMLS_IOT_SRC_STR-FLG_HAS_1_N_MAT sy-vline 
WA_FRMLS_IOT_SRC_STR-FLG_OUT sy-vline 
WA_FRMLS_IOT_SRC_STR-STREAM_FLG sy-vline 
WA_FRMLS_IOT_SRC_STR-PO_SRC_FLG sy-vline 
WA_FRMLS_IOT_SRC_STR-SEC_SRC_FLG sy-vline 
WA_FRMLS_IOT_SRC_STR-MATNR_INPUT sy-vline 
WA_FRMLS_IOT_SRC_STR-MAKTX_INPUT sy-vline 
WA_FRMLS_IOT_SRC_STR-SUBID_INPUT sy-vline 
WA_FRMLS_IOT_SRC_STR-IDENT_INPUT sy-vline      INTO ld_text SEPARATED BY SPACE.

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