ABAP Select data from SAP table EISU_IL_MD_DEVLOC 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_MD_DEVLOC 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_MD_DEVLOC. 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_MD_DEVLOC 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_MD_DEVLOC TYPE STANDARD TABLE OF EISU_IL_MD_DEVLOC,
      WA_EISU_IL_MD_DEVLOC TYPE EISU_IL_MD_DEVLOC,
      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_MD_DEVLOC> TYPE EISU_IL_MD_DEVLOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EISU_IL_MD_DEVLOC
*  INTO TABLE @DATA(IT_EISU_IL_MD_DEVLOC2).
*--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_MD_DEVLOC INDEX 1 INTO DATA(WA_EISU_IL_MD_DEVLOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EISU_IL_MD_DEVLOC>-MANDT = 1.
<EISU_IL_MD_DEVLOC>-DEVLOC = 1.
<EISU_IL_MD_DEVLOC>-HAUS = 1.
<EISU_IL_MD_DEVLOC>-VSTELLE = 1.
<EISU_IL_MD_DEVLOC>-SWERK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EISU_IL_MD_DEVLOC-STORT, sy-vline,
  WA_EISU_IL_MD_DEVLOC-STORTZUS, sy-vline,
  WA_EISU_IL_MD_DEVLOC-BEGRU, sy-vline,
  WA_EISU_IL_MD_DEVLOC-V_DEVLOC, sy-vline,
  WA_EISU_IL_MD_DEVLOC-SWERKTXT, sy-vline,
  WA_EISU_IL_MD_DEVLOC-STORTTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EISU_IL_MD_DEVLOC 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_MD_DEVLOC 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_MD_DEVLOC INTO WA_EISU_IL_MD_DEVLOC.


*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 TPLNR, internal->external for field DEVLOC
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_EISU_IL_MD_DEVLOC-DEVLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISU_IL_MD_DEVLOC-DEVLOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field HAUS
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_EISU_IL_MD_DEVLOC-HAUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISU_IL_MD_DEVLOC-HAUS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TPLNR, internal->external for field V_DEVLOC
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_EISU_IL_MD_DEVLOC-V_DEVLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISU_IL_MD_DEVLOC-V_DEVLOC.
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_MD_DEVLOC_STR, 
MANDT TYPE STRING,
DEVLOC TYPE STRING,
HAUS TYPE STRING,
VSTELLE TYPE STRING,
SWERK TYPE STRING,
STORT TYPE STRING,
STORTZUS TYPE STRING,
BEGRU TYPE STRING,
V_DEVLOC TYPE STRING,
SWERKTXT TYPE STRING,
STORTTEXT TYPE STRING,
ADDRLINE1 TYPE STRING,
ADDRLINE2 TYPE STRING,
ADDRLINE3 TYPE STRING,
ADDRLINE4 TYPE STRING,
STTXTS TYPE STRING,
STTXTU TYPE STRING,
HAUSTXT TYPE STRING,
PLTXT TYPE STRING,
BUT_NOTE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EISU_IL_MD_DEVLOC_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_MD_DEVLOC_STR-MANDT sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-DEVLOC sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-HAUS sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-VSTELLE sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-SWERK sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-STORT sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-STORTZUS sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-BEGRU sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-V_DEVLOC sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-SWERKTXT sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-STORTTEXT sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-ADDRLINE1 sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-ADDRLINE2 sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-ADDRLINE3 sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-ADDRLINE4 sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-STTXTS sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-STTXTU sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-HAUSTXT sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-PLTXT sy-vline 
WA_EISU_IL_MD_DEVLOC_STR-BUT_NOTE sy-vline      INTO ld_text SEPARATED BY SPACE.

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