ABAP Select data from SAP table /ISDFPS/MM_ME_DELIVERY_HEAD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/MM_ME_DELIVERY_HEAD 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 /ISDFPS/MM_ME_DELIVERY_HEAD. 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 /ISDFPS/MM_ME_DELIVERY_HEAD 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_/ISDFPS/MM_ME_DELIVERY_HEAD TYPE STANDARD TABLE OF /ISDFPS/MM_ME_DELIVERY_HEAD,
      WA_/ISDFPS/MM_ME_DELIVERY_HEAD TYPE /ISDFPS/MM_ME_DELIVERY_HEAD,
      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: </ISDFPS/MM_ME_DELIVERY_HEAD> TYPE /ISDFPS/MM_ME_DELIVERY_HEAD.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/MM_ME_DELIVERY_HEAD
  INTO TABLE IT_/ISDFPS/MM_ME_DELIVERY_HEAD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/MM_ME_DELIVERY_HEAD
*  INTO TABLE @DATA(IT_/ISDFPS/MM_ME_DELIVERY_HEAD2).
*--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_/ISDFPS/MM_ME_DELIVERY_HEAD INDEX 1 INTO DATA(WA_/ISDFPS/MM_ME_DELIVERY_HEAD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/MM_ME_DELIVERY_HEAD ASSIGNING </ISDFPS/MM_ME_DELIVERY_HEAD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/MM_ME_DELIVERY_HEAD>-DELIV_NUMB = 1.
</ISDFPS/MM_ME_DELIVERY_HEAD>-DLV_TYPE = 1.
</ISDFPS/MM_ME_DELIVERY_HEAD>-CREATED_BY = 1.
</ISDFPS/MM_ME_DELIVERY_HEAD>-CR_ON = 1.
</ISDFPS/MM_ME_DELIVERY_HEAD>-CHANGED_BY = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/MM_ME_DELIVERY_HEAD INTO WA_/ISDFPS/MM_ME_DELIVERY_HEAD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/MM_ME_DELIVERY_HEAD-CH_ON, sy-vline,
  WA_/ISDFPS/MM_ME_DELIVERY_HEAD-LFDAT, sy-vline,
  WA_/ISDFPS/MM_ME_DELIVERY_HEAD-NET_WEIGHT, sy-vline,
  WA_/ISDFPS/MM_ME_DELIVERY_HEAD-CONT_DG, sy-vline,
  WA_/ISDFPS/MM_ME_DELIVERY_HEAD-WBSTK, sy-vline,
  WA_/ISDFPS/MM_ME_DELIVERY_HEAD-LOAD_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/MM_ME_DELIVERY_HEAD 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_/ISDFPS/MM_ME_DELIVERY_HEAD 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_/ISDFPS/MM_ME_DELIVERY_HEAD INTO WA_/ISDFPS/MM_ME_DELIVERY_HEAD.


*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 DELIV_NUMB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_ME_DELIVERY_HEAD-DELIV_NUMB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_ME_DELIVERY_HEAD-DELIV_NUMB.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field UNIT_OF_WT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_ME_DELIVERY_HEAD-UNIT_OF_WT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_ME_DELIVERY_HEAD-UNIT_OF_WT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLUMEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_ME_DELIVERY_HEAD-VOLUMEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_ME_DELIVERY_HEAD-VOLUMEUNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MEDST
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_ME_DELIVERY_HEAD-MEDST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_ME_DELIVERY_HEAD-MEDST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRG, internal->external for field TRAZTD
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_ME_DELIVERY_HEAD-TRAZTD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_ME_DELIVERY_HEAD-TRAZTD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRN, internal->external for field FAHZTD
CALL FUNCTION 'CONVERSION_EXIT_TSTRN_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_ME_DELIVERY_HEAD-FAHZTD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_ME_DELIVERY_HEAD-FAHZTD.
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_/ISDFPS/MM_ME_DELIVERY_HEAD_STR, 
DELIV_NUMB TYPE STRING,
DLV_TYPE TYPE STRING,
CREATED_BY TYPE STRING,
CR_ON TYPE STRING,
CHANGED_BY TYPE STRING,
CH_ON TYPE STRING,
LFDAT TYPE STRING,
NET_WEIGHT TYPE STRING,
CONT_DG TYPE STRING,
WBSTK TYPE STRING,
LOAD_DATE TYPE STRING,
SHIP_POINT TYPE STRING,
SALESORG TYPE STRING,
SHIP_TO TYPE STRING,
COUNTRY TYPE STRING,
NAME TYPE STRING,
NAME_2 TYPE STRING,
CITY TYPE STRING,
POSTL_CODE TYPE STRING,
STREET TYPE STRING,
TOTAL_WGHT TYPE STRING,
UNIT_OF_WT TYPE STRING,
VOLUME TYPE STRING,
VOLUMEUNIT TYPE STRING,
REQ_PLVAR TYPE STRING,
REQ_OTYPE TYPE STRING,
REQ_OBJID TYPE STRING,
SUPPL_PLVAR TYPE STRING,
SUPPL_OTYPE TYPE STRING,
SUPPL_OBJID TYPE STRING,
MATERIAL TYPE STRING,
ROUTE TYPE STRING,
DISTZ TYPE STRING,
MEDST TYPE STRING,
ROUTBEZ TYPE STRING,
TRAZTD TYPE STRING,
FAHZTD TYPE STRING,
TRANSPORT TYPE STRING,
SPE_LOEKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/MM_ME_DELIVERY_HEAD_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_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-DELIV_NUMB sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-DLV_TYPE sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-CREATED_BY sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-CR_ON sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-CHANGED_BY sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-CH_ON sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-LFDAT sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-NET_WEIGHT sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-CONT_DG sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-WBSTK sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-LOAD_DATE sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-SHIP_POINT sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-SALESORG sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-SHIP_TO sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-COUNTRY sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-NAME sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-NAME_2 sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-CITY sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-POSTL_CODE sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-STREET sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-TOTAL_WGHT sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-UNIT_OF_WT sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-VOLUME sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-VOLUMEUNIT sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-REQ_PLVAR sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-REQ_OTYPE sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-REQ_OBJID sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-SUPPL_PLVAR sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-SUPPL_OTYPE sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-SUPPL_OBJID sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-MATERIAL sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-ROUTE sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-DISTZ sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-MEDST sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-ROUTBEZ sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-TRAZTD sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-FAHZTD sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-TRANSPORT sy-vline 
WA_/ISDFPS/MM_ME_DELIVERY_HEAD_STR-SPE_LOEKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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