ABAP Select data from SAP table IFMLACNVRSN into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IFMLACNVRSN 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 IFMLACNVRSN. 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 IFMLACNVRSN 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_IFMLACNVRSN TYPE STANDARD TABLE OF IFMLACNVRSN,
      WA_IFMLACNVRSN TYPE IFMLACNVRSN,
      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: <IFMLACNVRSN> TYPE IFMLACNVRSN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFMLACNVRSN
*  INTO TABLE @DATA(IT_IFMLACNVRSN2).
*--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_IFMLACNVRSN INDEX 1 INTO DATA(WA_IFMLACNVRSN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFMLACNVRSN>-MANDT = 1.
<IFMLACNVRSN>-ORIGINSYSTEM = 1.
<IFMLACNVRSN>-PRICINGCONDITIONFORMULAKEY = 1.
<IFMLACNVRSN>-CONDITIONTYPE = 1.
<IFMLACNVRSN>-CNDNFMLACNVRSNVALDTYSTRTDTETME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFMLACNVRSN-PRCGCONDITIONCONVERSIONPLACE, sy-vline,
  WA_IFMLACNVRSN-PRICINGCONDITIONSOURCECURRENCY, sy-vline,
  WA_IFMLACNVRSN-PRCGCNDNSOURCEQUANTITYUNIT, sy-vline,
  WA_IFMLACNVRSN-PRICINGCONDITIONTARGETCURRENCY, sy-vline,
  WA_IFMLACNVRSN-PRCGCNDNTARGETQUANTITYUNIT, sy-vline,
  WA_IFMLACNVRSN-PRICINGCONDITIONCONVERSIONRULE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFMLACNVRSN 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_IFMLACNVRSN 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_IFMLACNVRSN INTO WA_IFMLACNVRSN.


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

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

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

*Conversion exit ALPHA, internal->external for field PRICINGCONDITIONCONVERSIONRULE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFMLACNVRSN-PRICINGCONDITIONCONVERSIONRULE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMLACNVRSN-PRICINGCONDITIONCONVERSIONRULE.
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_IFMLACNVRSN_STR, 
MANDT TYPE STRING,
ORIGINSYSTEM TYPE STRING,
PRICINGCONDITIONFORMULAKEY TYPE STRING,
CONDITIONTYPE TYPE STRING,
CNDNFMLACNVRSNVALDTYSTRTDTETME TYPE STRING,
PRCGCONDITIONCONVERSIONPLACE TYPE STRING,
PRICINGCONDITIONSOURCECURRENCY TYPE STRING,
PRCGCNDNSOURCEQUANTITYUNIT TYPE STRING,
PRICINGCONDITIONTARGETCURRENCY TYPE STRING,
PRCGCNDNTARGETQUANTITYUNIT TYPE STRING,
PRICINGCONDITIONCONVERSIONRULE TYPE STRING,
PRCGCONDITIONFIXEDEXCHANGERATE TYPE STRING,
PRCGCNDNSOURCECONVERSIONFACTOR TYPE STRING,
PRCGCNDNTARGETCONVERSIONFACTOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFMLACNVRSN_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_IFMLACNVRSN_STR-MANDT sy-vline 
WA_IFMLACNVRSN_STR-ORIGINSYSTEM sy-vline 
WA_IFMLACNVRSN_STR-PRICINGCONDITIONFORMULAKEY sy-vline 
WA_IFMLACNVRSN_STR-CONDITIONTYPE sy-vline 
WA_IFMLACNVRSN_STR-CNDNFMLACNVRSNVALDTYSTRTDTETME sy-vline 
WA_IFMLACNVRSN_STR-PRCGCONDITIONCONVERSIONPLACE sy-vline 
WA_IFMLACNVRSN_STR-PRICINGCONDITIONSOURCECURRENCY sy-vline 
WA_IFMLACNVRSN_STR-PRCGCNDNSOURCEQUANTITYUNIT sy-vline 
WA_IFMLACNVRSN_STR-PRICINGCONDITIONTARGETCURRENCY sy-vline 
WA_IFMLACNVRSN_STR-PRCGCNDNTARGETQUANTITYUNIT sy-vline 
WA_IFMLACNVRSN_STR-PRICINGCONDITIONCONVERSIONRULE sy-vline 
WA_IFMLACNVRSN_STR-PRCGCONDITIONFIXEDEXCHANGERATE sy-vline 
WA_IFMLACNVRSN_STR-PRCGCNDNSOURCECONVERSIONFACTOR sy-vline 
WA_IFMLACNVRSN_STR-PRCGCNDNTARGETCONVERSIONFACTOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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