ABAP Select data from SAP table EISU_IL_BI_BILL_PER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EISU_IL_BI_BILL_PER 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 EISU_IL_BI_BILL_PER. 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 EISU_IL_BI_BILL_PER 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_EISU_IL_BI_BILL_PER TYPE STANDARD TABLE OF EISU_IL_BI_BILL_PER,
      WA_EISU_IL_BI_BILL_PER TYPE EISU_IL_BI_BILL_PER,
      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: <EISU_IL_BI_BILL_PER> TYPE EISU_IL_BI_BILL_PER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EISU_IL_BI_BILL_PER
*  INTO TABLE @DATA(IT_EISU_IL_BI_BILL_PER2).
*--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_EISU_IL_BI_BILL_PER INDEX 1 INTO DATA(WA_EISU_IL_BI_BILL_PER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EISU_IL_BI_BILL_PER>-ANLAGE = 1.
<EISU_IL_BI_BILL_PER>-VERTRAG = 1.
<EISU_IL_BI_BILL_PER>-ICON_GRAFICS = 1.
<EISU_IL_BI_BILL_PER>-AB = 1.
<EISU_IL_BI_BILL_PER>-BIS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EISU_IL_BI_BILL_PER-ICON_BISTATUS, sy-vline,
  WA_EISU_IL_BI_BILL_PER-FINALLY_BILLED, sy-vline,
  WA_EISU_IL_BI_BILL_PER-EINZDAT, sy-vline,
  WA_EISU_IL_BI_BILL_PER-AUSZDAT, sy-vline,
  WA_EISU_IL_BI_BILL_PER-BEGABRPE, sy-vline,
  WA_EISU_IL_BI_BILL_PER-BEGNACH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EISU_IL_BI_BILL_PER 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_EISU_IL_BI_BILL_PER 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_EISU_IL_BI_BILL_PER INTO WA_EISU_IL_BI_BILL_PER.


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

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

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

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

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EISU_IL_BI_BILL_PER-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISU_IL_BI_BILL_PER-GPART.
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_EISU_IL_BI_BILL_PER_STR, 
ANLAGE TYPE STRING,
VERTRAG TYPE STRING,
ICON_GRAFICS TYPE STRING,
AB TYPE STRING,
BIS TYPE STRING,
ICON_BISTATUS TYPE STRING,
FINALLY_BILLED TYPE STRING,
EINZDAT TYPE STRING,
AUSZDAT TYPE STRING,
BEGABRPE TYPE STRING,
BEGNACH TYPE STRING,
BEGEND TYPE STRING,
NEXT_BI_ORDER TYPE STRING,
NEXT_SCHEDULE TYPE STRING,
INSTGRTYPE TYPE STRING,
INSTROLE TYPE STRING,
MAININST TYPE STRING,
VKONTO TYPE STRING,
GPART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EISU_IL_BI_BILL_PER_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_EISU_IL_BI_BILL_PER_STR-ANLAGE sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-VERTRAG sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-ICON_GRAFICS sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-AB sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-BIS sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-ICON_BISTATUS sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-FINALLY_BILLED sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-EINZDAT sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-AUSZDAT sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-BEGABRPE sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-BEGNACH sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-BEGEND sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-NEXT_BI_ORDER sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-NEXT_SCHEDULE sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-INSTGRTYPE sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-INSTROLE sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-MAININST sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-VKONTO sy-vline 
WA_EISU_IL_BI_BILL_PER_STR-GPART sy-vline      INTO ld_text SEPARATED BY SPACE.

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