ABAP Select data from SAP table IMAK_CUR 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 IMAK_CUR 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 IMAK_CUR. 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 IMAK_CUR 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_IMAK_CUR TYPE STANDARD TABLE OF IMAK_CUR,
      WA_IMAK_CUR TYPE IMAK_CUR,
      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: <IMAK_CUR> TYPE IMAK_CUR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMAK_CUR
*  INTO TABLE @DATA(IT_IMAK_CUR2).
*--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_IMAK_CUR INDEX 1 INTO DATA(WA_IMAK_CUR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMAK_CUR>-VKOKRS = 1.
<IMAK_CUR>-POSNR = 1.
<IMAK_CUR>-POSID = 1.
<IMAK_CUR>-AROBJNR = 1.
<IMAK_CUR>-WAERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMAK_CUR-IVART, sy-vline,
  WA_IMAK_CUR-VARNT, sy-vline,
  WA_IMAK_CUR-OBJNR, sy-vline,
  WA_IMAK_CUR-KAPWRT, sy-vline,
  WA_IMAK_CUR-KAPWRO, sy-vline,
  WA_IMAK_CUR-GJAHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMAK_CUR 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_IMAK_CUR 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_IMAK_CUR INTO WA_IMAK_CUR.


*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 REQNR, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_REQNR_OUTPUT'
  EXPORTING
    input =                      WA_IMAK_CUR-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAK_CUR-POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REQID, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_REQID_OUTPUT'
  EXPORTING
    input =                      WA_IMAK_CUR-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAK_CUR-POSID.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IMAK_CUR-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAK_CUR-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMAK_CUR-VERSI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAK_CUR-VERSI.
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_IMAK_CUR_STR, 
VKOKRS TYPE STRING,
POSNR TYPE STRING,
POSID TYPE STRING,
AROBJNR TYPE STRING,
WAERS TYPE STRING,
IVART TYPE STRING,
VARNT TYPE STRING,
OBJNR TYPE STRING,
KAPWRT TYPE STRING,
KAPWRO TYPE STRING,
GJAHR TYPE STRING,
VERSI TYPE STRING,
UPDFLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMAK_CUR_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_IMAK_CUR_STR-VKOKRS sy-vline 
WA_IMAK_CUR_STR-POSNR sy-vline 
WA_IMAK_CUR_STR-POSID sy-vline 
WA_IMAK_CUR_STR-AROBJNR sy-vline 
WA_IMAK_CUR_STR-WAERS sy-vline 
WA_IMAK_CUR_STR-IVART sy-vline 
WA_IMAK_CUR_STR-VARNT sy-vline 
WA_IMAK_CUR_STR-OBJNR sy-vline 
WA_IMAK_CUR_STR-KAPWRT sy-vline 
WA_IMAK_CUR_STR-KAPWRO sy-vline 
WA_IMAK_CUR_STR-GJAHR sy-vline 
WA_IMAK_CUR_STR-VERSI sy-vline 
WA_IMAK_CUR_STR-UPDFLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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