ABAP Select data from SAP table EISFI 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 EISFI 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 EISFI. 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 EISFI 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_EISFI TYPE STANDARD TABLE OF EISFI,
      WA_EISFI TYPE EISFI,
      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: <EISFI> TYPE EISFI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EISFI
*  INTO TABLE @DATA(IT_EISFI2).
*--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_EISFI INDEX 1 INTO DATA(WA_EISFI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EISFI>-BSVERS = 1.
<EISFI>-FIPVER = 1.
<EISFI>-LCVERS = 1.
<EISFI>-CHACCT = 1.
<EISFI>-GLACCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EISFI-ERGSL, sy-vline,
  WA_EISFI-LCITEM, sy-vline,
  WA_EISFI-COMCOD, sy-vline,
  WA_EISFI-COMPNY, sy-vline,
  WA_EISFI-BUSARE, sy-vline,
  WA_EISFI-COUNTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EISFI 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_EISFI 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_EISFI INTO WA_EISFI.


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

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

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

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

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

*Conversion exit GJAHR, internal->external for field YEARB
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_EISFI-YEARB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISFI-YEARB.
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_EISFI_STR, 
BSVERS TYPE STRING,
FIPVER TYPE STRING,
LCVERS TYPE STRING,
CHACCT TYPE STRING,
GLACCT TYPE STRING,
ERGSL TYPE STRING,
LCITEM TYPE STRING,
COMCOD TYPE STRING,
COMPNY TYPE STRING,
BUSARE TYPE STRING,
COUNTR TYPE STRING,
YEARB TYPE STRING,
PERDE TYPE STRING,
VPERD TYPE STRING,
WAERS TYPE STRING,
FHB1GC TYPE STRING,
HB1_FI TYPE STRING,
HB1_LC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EISFI_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_EISFI_STR-BSVERS sy-vline 
WA_EISFI_STR-FIPVER sy-vline 
WA_EISFI_STR-LCVERS sy-vline 
WA_EISFI_STR-CHACCT sy-vline 
WA_EISFI_STR-GLACCT sy-vline 
WA_EISFI_STR-ERGSL sy-vline 
WA_EISFI_STR-LCITEM sy-vline 
WA_EISFI_STR-COMCOD sy-vline 
WA_EISFI_STR-COMPNY sy-vline 
WA_EISFI_STR-BUSARE sy-vline 
WA_EISFI_STR-COUNTR sy-vline 
WA_EISFI_STR-YEARB sy-vline 
WA_EISFI_STR-PERDE sy-vline 
WA_EISFI_STR-VPERD sy-vline 
WA_EISFI_STR-WAERS sy-vline 
WA_EISFI_STR-FHB1GC sy-vline 
WA_EISFI_STR-HB1_FI sy-vline 
WA_EISFI_STR-HB1_LC sy-vline      INTO ld_text SEPARATED BY SPACE.

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