ABAP Select data from SAP table EISU_IL_MD_DEVICE 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_DEVICE 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_DEVICE. 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_DEVICE 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_DEVICE TYPE STANDARD TABLE OF EISU_IL_MD_DEVICE,
      WA_EISU_IL_MD_DEVICE TYPE EISU_IL_MD_DEVICE,
      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_DEVICE> TYPE EISU_IL_MD_DEVICE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EISU_IL_MD_DEVICE
*  INTO TABLE @DATA(IT_EISU_IL_MD_DEVICE2).
*--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_DEVICE INDEX 1 INTO DATA(WA_EISU_IL_MD_DEVICE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EISU_IL_MD_DEVICE>-MANDT = 1.
<EISU_IL_MD_DEVICE>-EQUNR = 1.
<EISU_IL_MD_DEVICE>-DEVLOC = 1.
<EISU_IL_MD_DEVICE>-BIS = 1.
<EISU_IL_MD_DEVICE>-AB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EISU_IL_MD_DEVICE-LOGIKNR, sy-vline,
  WA_EISU_IL_MD_DEVICE-GERAET, sy-vline,
  WA_EISU_IL_MD_DEVICE-MATNR, sy-vline,
  WA_EISU_IL_MD_DEVICE-WERK, sy-vline,
  WA_EISU_IL_MD_DEVICE-LAGER, sy-vline,
  WA_EISU_IL_MD_DEVICE-ZWGRUPPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EISU_IL_MD_DEVICE 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_DEVICE 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_DEVICE INTO WA_EISU_IL_MD_DEVICE.


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

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

*Conversion exit GERNR, internal->external for field GERAET
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EISU_IL_MD_DEVICE-GERAET
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISU_IL_MD_DEVICE-GERAET.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EISU_IL_MD_DEVICE-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISU_IL_MD_DEVICE-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit RAT11, internal->external for field RATING
CALL FUNCTION 'CONVERSION_EXIT_RAT11_OUTPUT'
  EXPORTING
    input =                      WA_EISU_IL_MD_DEVICE-RATING
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISU_IL_MD_DEVICE-RATING.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PVOLT, internal->external for field P_VOLTAGE
CALL FUNCTION 'CONVERSION_EXIT_PVOLT_OUTPUT'
  EXPORTING
    input =                      WA_EISU_IL_MD_DEVICE-P_VOLTAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISU_IL_MD_DEVICE-P_VOLTAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SVOLT, internal->external for field S_VOLTAGE
CALL FUNCTION 'CONVERSION_EXIT_SVOLT_OUTPUT'
  EXPORTING
    input =                      WA_EISU_IL_MD_DEVICE-S_VOLTAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISU_IL_MD_DEVICE-S_VOLTAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MSG_LENGTH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EISU_IL_MD_DEVICE-MSG_LENGTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EISU_IL_MD_DEVICE-MSG_LENGTH.
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_DEVICE_STR, 
MANDT TYPE STRING,
EQUNR TYPE STRING,
DEVLOC TYPE STRING,
BIS TYPE STRING,
AB TYPE STRING,
LOGIKNR TYPE STRING,
GERAET TYPE STRING,
MATNR TYPE STRING,
WERK TYPE STRING,
LAGER TYPE STRING,
ZWGRUPPE TYPE STRING,
EINBDAT TYPE STRING,
AUSBDAT TYPE STRING,
GERWECHS TYPE STRING,
WGRUPPE TYPE STRING,
PRIMWNR1 TYPE STRING,
SEKWNR1 TYPE STRING,
PRIMWNR2 TYPE STRING,
SEKWNR2 TYPE STRING,
EAGRUPPE TYPE STRING,
KOMGRP TYPE STRING,
LOS TYPE STRING,
MESSDRCK TYPE STRING,
UEBERVER TYPE STRING,
BESITZ TYPE STRING,
BGLJAHR TYPE STRING,
WECHSEL TYPE STRING,
BGLSTAT TYPE STRING,
KZSTICH TYPE STRING,
SCHWGRAD TYPE STRING,
PLOMBDAT TYPE STRING,
HERST TYPE STRING,
BGLART TYPE STRING,
BGLNUM TYPE STRING,
UMBAUDAT TYPE STRING,
UMBAUGR TYPE STRING,
EICHFAEL TYPE STRING,
PARAMETR TYPE STRING,
PLOMBE TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
ZSPANNP TYPE STRING,
ZSPANNS TYPE STRING,
ZSTROMP TYPE STRING,
ZSTROMS TYPE STRING,
BAUJJ TYPE STRING,
DEVGRP TYPE STRING,
SPARTE TYPE STRING,
TYPBZ TYPE STRING,
APPROVALNR TYPE STRING,
VLZEIT_DEV TYPE STRING,
KOMBINAT TYPE STRING,
BGLNETZ TYPE STRING,
ORDER_CODE TYPE STRING,
NOTIF_CODE TYPE STRING,
S_EQBS TYPE STRING,
PPM_METER TYPE STRING,
OBJNR TYPE STRING,
LOSSDTGROUP TYPE STRING,
RATING TYPE STRING,
P_VOLTAGE TYPE STRING,
S_VOLTAGE TYPE STRING,
AMS TYPE STRING,
AMCG_CAP_GRP TYPE STRING,
SERVICE_PROV TYPE STRING,
EGERR_INFO TYPE STRING,
BEGRU TYPE STRING,
SHORTTEXT TYPE STRING,
BAUFORM TYPE STRING,
AMI_DEVICE TYPE STRING,
AMI_ACTIVE TYPE STRING,
UII TYPE STRING,
LOCKED TYPE STRING,
LOCK_INFO TYPE STRING,
SMART_METER_TYPE TYPE STRING,
MSG_LENGTH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EISU_IL_MD_DEVICE_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_DEVICE_STR-MANDT sy-vline 
WA_EISU_IL_MD_DEVICE_STR-EQUNR sy-vline 
WA_EISU_IL_MD_DEVICE_STR-DEVLOC sy-vline 
WA_EISU_IL_MD_DEVICE_STR-BIS sy-vline 
WA_EISU_IL_MD_DEVICE_STR-AB sy-vline 
WA_EISU_IL_MD_DEVICE_STR-LOGIKNR sy-vline 
WA_EISU_IL_MD_DEVICE_STR-GERAET sy-vline 
WA_EISU_IL_MD_DEVICE_STR-MATNR sy-vline 
WA_EISU_IL_MD_DEVICE_STR-WERK sy-vline 
WA_EISU_IL_MD_DEVICE_STR-LAGER sy-vline 
WA_EISU_IL_MD_DEVICE_STR-ZWGRUPPE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-EINBDAT sy-vline 
WA_EISU_IL_MD_DEVICE_STR-AUSBDAT sy-vline 
WA_EISU_IL_MD_DEVICE_STR-GERWECHS sy-vline 
WA_EISU_IL_MD_DEVICE_STR-WGRUPPE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-PRIMWNR1 sy-vline 
WA_EISU_IL_MD_DEVICE_STR-SEKWNR1 sy-vline 
WA_EISU_IL_MD_DEVICE_STR-PRIMWNR2 sy-vline 
WA_EISU_IL_MD_DEVICE_STR-SEKWNR2 sy-vline 
WA_EISU_IL_MD_DEVICE_STR-EAGRUPPE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-KOMGRP sy-vline 
WA_EISU_IL_MD_DEVICE_STR-LOS sy-vline 
WA_EISU_IL_MD_DEVICE_STR-MESSDRCK sy-vline 
WA_EISU_IL_MD_DEVICE_STR-UEBERVER sy-vline 
WA_EISU_IL_MD_DEVICE_STR-BESITZ sy-vline 
WA_EISU_IL_MD_DEVICE_STR-BGLJAHR sy-vline 
WA_EISU_IL_MD_DEVICE_STR-WECHSEL sy-vline 
WA_EISU_IL_MD_DEVICE_STR-BGLSTAT sy-vline 
WA_EISU_IL_MD_DEVICE_STR-KZSTICH sy-vline 
WA_EISU_IL_MD_DEVICE_STR-SCHWGRAD sy-vline 
WA_EISU_IL_MD_DEVICE_STR-PLOMBDAT sy-vline 
WA_EISU_IL_MD_DEVICE_STR-HERST sy-vline 
WA_EISU_IL_MD_DEVICE_STR-BGLART sy-vline 
WA_EISU_IL_MD_DEVICE_STR-BGLNUM sy-vline 
WA_EISU_IL_MD_DEVICE_STR-UMBAUDAT sy-vline 
WA_EISU_IL_MD_DEVICE_STR-UMBAUGR sy-vline 
WA_EISU_IL_MD_DEVICE_STR-EICHFAEL sy-vline 
WA_EISU_IL_MD_DEVICE_STR-PARAMETR sy-vline 
WA_EISU_IL_MD_DEVICE_STR-PLOMBE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-ERDAT sy-vline 
WA_EISU_IL_MD_DEVICE_STR-ERNAM sy-vline 
WA_EISU_IL_MD_DEVICE_STR-AEDAT sy-vline 
WA_EISU_IL_MD_DEVICE_STR-AENAM sy-vline 
WA_EISU_IL_MD_DEVICE_STR-ZSPANNP sy-vline 
WA_EISU_IL_MD_DEVICE_STR-ZSPANNS sy-vline 
WA_EISU_IL_MD_DEVICE_STR-ZSTROMP sy-vline 
WA_EISU_IL_MD_DEVICE_STR-ZSTROMS sy-vline 
WA_EISU_IL_MD_DEVICE_STR-BAUJJ sy-vline 
WA_EISU_IL_MD_DEVICE_STR-DEVGRP sy-vline 
WA_EISU_IL_MD_DEVICE_STR-SPARTE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-TYPBZ sy-vline 
WA_EISU_IL_MD_DEVICE_STR-APPROVALNR sy-vline 
WA_EISU_IL_MD_DEVICE_STR-VLZEIT_DEV sy-vline 
WA_EISU_IL_MD_DEVICE_STR-KOMBINAT sy-vline 
WA_EISU_IL_MD_DEVICE_STR-BGLNETZ sy-vline 
WA_EISU_IL_MD_DEVICE_STR-ORDER_CODE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-NOTIF_CODE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-S_EQBS sy-vline 
WA_EISU_IL_MD_DEVICE_STR-PPM_METER sy-vline 
WA_EISU_IL_MD_DEVICE_STR-OBJNR sy-vline 
WA_EISU_IL_MD_DEVICE_STR-LOSSDTGROUP sy-vline 
WA_EISU_IL_MD_DEVICE_STR-RATING sy-vline 
WA_EISU_IL_MD_DEVICE_STR-P_VOLTAGE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-S_VOLTAGE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-AMS sy-vline 
WA_EISU_IL_MD_DEVICE_STR-AMCG_CAP_GRP sy-vline 
WA_EISU_IL_MD_DEVICE_STR-SERVICE_PROV sy-vline 
WA_EISU_IL_MD_DEVICE_STR-EGERR_INFO sy-vline 
WA_EISU_IL_MD_DEVICE_STR-BEGRU sy-vline 
WA_EISU_IL_MD_DEVICE_STR-SHORTTEXT sy-vline 
WA_EISU_IL_MD_DEVICE_STR-BAUFORM sy-vline 
WA_EISU_IL_MD_DEVICE_STR-AMI_DEVICE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-AMI_ACTIVE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-UII sy-vline 
WA_EISU_IL_MD_DEVICE_STR-LOCKED sy-vline 
WA_EISU_IL_MD_DEVICE_STR-LOCK_INFO sy-vline 
WA_EISU_IL_MD_DEVICE_STR-SMART_METER_TYPE sy-vline 
WA_EISU_IL_MD_DEVICE_STR-MSG_LENGTH sy-vline      INTO ld_text SEPARATED BY SPACE.

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