ABAP Select data from SAP table IFMEISB 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 IFMEISB 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 IFMEISB. 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 IFMEISB 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_IFMEISB TYPE STANDARD TABLE OF IFMEISB,
      WA_IFMEISB TYPE IFMEISB,
      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: <IFMEISB> TYPE IFMEISB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFMEISB
*  INTO TABLE @DATA(IT_IFMEISB2).
*--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_IFMEISB INDEX 1 INTO DATA(WA_IFMEISB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFMEISB>-FIKRS = 1.
<IFMEISB>-BUKRS = 1.
<IFMEISB>-FIPEX = 1.
<IFMEISB>-WRTTP = 1.
<IFMEISB>-GSBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFMEISB-VORGA, sy-vline,
  WA_IFMEISB-VERSN, sy-vline,
  WA_IFMEISB-GJAHR, sy-vline,
  WA_IFMEISB-PERDE, sy-vline,
  WA_IFMEISB-PERIO, sy-vline,
  WA_IFMEISB-BELTP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFMEISB 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_IFMEISB 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_IFMEISB INTO WA_IFMEISB.


*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 FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_IFMEISB-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMEISB-FIPEX.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit PERI7, internal->external for field PERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_IFMEISB-PERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMEISB-PERIO.
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_IFMEISB_STR, 
FIKRS TYPE STRING,
BUKRS TYPE STRING,
FIPEX TYPE STRING,
WRTTP TYPE STRING,
GSBER TYPE STRING,
VORGA TYPE STRING,
VERSN TYPE STRING,
GJAHR TYPE STRING,
PERDE TYPE STRING,
PERIO TYPE STRING,
BELTP TYPE STRING,
TWAER TYPE STRING,
IOF01 TYPE STRING,
IOT01 TYPE STRING,
OBF01 TYPE STRING,
OBT01 TYPE STRING,
CBF01 TYPE STRING,
CBT01 TYPE STRING,
PLF01 TYPE STRING,
PLT01 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFMEISB_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_IFMEISB_STR-FIKRS sy-vline 
WA_IFMEISB_STR-BUKRS sy-vline 
WA_IFMEISB_STR-FIPEX sy-vline 
WA_IFMEISB_STR-WRTTP sy-vline 
WA_IFMEISB_STR-GSBER sy-vline 
WA_IFMEISB_STR-VORGA sy-vline 
WA_IFMEISB_STR-VERSN sy-vline 
WA_IFMEISB_STR-GJAHR sy-vline 
WA_IFMEISB_STR-PERDE sy-vline 
WA_IFMEISB_STR-PERIO sy-vline 
WA_IFMEISB_STR-BELTP sy-vline 
WA_IFMEISB_STR-TWAER sy-vline 
WA_IFMEISB_STR-IOF01 sy-vline 
WA_IFMEISB_STR-IOT01 sy-vline 
WA_IFMEISB_STR-OBF01 sy-vline 
WA_IFMEISB_STR-OBT01 sy-vline 
WA_IFMEISB_STR-CBF01 sy-vline 
WA_IFMEISB_STR-CBT01 sy-vline 
WA_IFMEISB_STR-PLF01 sy-vline 
WA_IFMEISB_STR-PLT01 sy-vline      INTO ld_text SEPARATED BY SPACE.

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