ABAP Select data from SAP table FRMLS_API_INA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FRMLS_API_INA 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_API_INA. 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_API_INA 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_API_INA TYPE STANDARD TABLE OF FRMLS_API_INA,
      WA_FRMLS_API_INA TYPE FRMLS_API_INA,
      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_API_INA> TYPE FRMLS_API_INA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FRMLS_API_INA
*  INTO TABLE @DATA(IT_FRMLS_API_INA2).
*--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_API_INA INDEX 1 INTO DATA(WA_FRMLS_API_INA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FRMLS_API_INA>-MANDT = 1.
<FRMLS_API_INA>-RECN = 1.
<FRMLS_API_INA>-RECNMST = 1.
<FRMLS_API_INA>-RECNROOT = 1.
<FRMLS_API_INA>-AENNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FRMLS_API_INA-VALFR, sy-vline,
  WA_FRMLS_API_INA-VALTO, sy-vline,
  WA_FRMLS_API_INA-LINEMODE, sy-vline,
  WA_FRMLS_API_INA-LOCKMODE, sy-vline,
  WA_FRMLS_API_INA-STATUS, sy-vline,
  WA_FRMLS_API_INA-STATUSCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FRMLS_API_INA 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_API_INA 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_API_INA INTO WA_FRMLS_API_INA.


*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 AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FRMLS_API_INA-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FRMLS_API_INA-AENNR.
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_API_INA_STR, 
MANDT TYPE STRING,
RECN TYPE STRING,
RECNMST TYPE STRING,
RECNROOT TYPE STRING,
AENNR TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
LINEMODE TYPE STRING,
LOCKMODE TYPE STRING,
STATUS TYPE STRING,
STATUSCODE TYPE STRING,
STD_ALT_FLG TYPE STRING,
ALT_POSNR TYPE STRING,
FLG_ALT_EXIST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FRMLS_API_INA_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_API_INA_STR-MANDT sy-vline 
WA_FRMLS_API_INA_STR-RECN sy-vline 
WA_FRMLS_API_INA_STR-RECNMST sy-vline 
WA_FRMLS_API_INA_STR-RECNROOT sy-vline 
WA_FRMLS_API_INA_STR-AENNR sy-vline 
WA_FRMLS_API_INA_STR-VALFR sy-vline 
WA_FRMLS_API_INA_STR-VALTO sy-vline 
WA_FRMLS_API_INA_STR-LINEMODE sy-vline 
WA_FRMLS_API_INA_STR-LOCKMODE sy-vline 
WA_FRMLS_API_INA_STR-STATUS sy-vline 
WA_FRMLS_API_INA_STR-STATUSCODE sy-vline 
WA_FRMLS_API_INA_STR-STD_ALT_FLG sy-vline 
WA_FRMLS_API_INA_STR-ALT_POSNR sy-vline 
WA_FRMLS_API_INA_STR-FLG_ALT_EXIST sy-vline      INTO ld_text SEPARATED BY SPACE.

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