ABAP Select data from SAP table MMPUR_SRVC_ENTR_SHT_ITEM_ENT1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MMPUR_SRVC_ENTR_SHT_ITEM_ENT1 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 MMPUR_SRVC_ENTR_SHT_ITEM_ENT1. 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 MMPUR_SRVC_ENTR_SHT_ITEM_ENT1 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_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1 TYPE STANDARD TABLE OF MMPUR_SRVC_ENTR_SHT_ITEM_ENT1,
      WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1 TYPE MMPUR_SRVC_ENTR_SHT_ITEM_ENT1,
      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: <MMPUR_SRVC_ENTR_SHT_ITEM_ENT1> TYPE MMPUR_SRVC_ENTR_SHT_ITEM_ENT1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MMPUR_SRVC_ENTR_SHT_ITEM_ENT1
  INTO TABLE IT_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPUR_SRVC_ENTR_SHT_ITEM_ENT1
*  INTO TABLE @DATA(IT_MMPUR_SRVC_ENTR_SHT_ITEM_ENT12).
*--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_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1 INDEX 1 INTO DATA(WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1 ASSIGNING <MMPUR_SRVC_ENTR_SHT_ITEM_ENT1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPUR_SRVC_ENTR_SHT_ITEM_ENT1>-CONTROLLER = 1.
<MMPUR_SRVC_ENTR_SHT_ITEM_ENT1>-ACTION_CODE = 1.
<MMPUR_SRVC_ENTR_SHT_ITEM_ENT1>-ACCOUNT_ASSIGNMENT_CATEGORY = 1.
<MMPUR_SRVC_ENTR_SHT_ITEM_ENT1>-CONFIRMED_QUANTITY = 1.
<MMPUR_SRVC_ENTR_SHT_ITEM_ENT1>-CONTROLLER = 1.

ENDLOOP.

LOOP AT IT_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1 INTO WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1-UNIT_CODE, sy-vline,
  WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1-CONTENT, sy-vline,
  WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1-MULTIPLE_ACCT_ASSGMT_DISTRIBUT, sy-vline,
  WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1-NET_PRICE_AMOUNT, sy-vline,
  WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1-CONTROLLER, sy-vline,
  WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1-CURRENCY_CODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1 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_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1 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_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1 INTO WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR, 
CONTROLLER TYPE STRING,
ACTION_CODE TYPE STRING,
ACCOUNT_ASSIGNMENT_CATEGORY TYPE STRING,
CONFIRMED_QUANTITY TYPE STRING,
CONTROLLER TYPE STRING,
UNIT_CODE TYPE STRING,
CONTENT TYPE STRING,
MULTIPLE_ACCT_ASSGMT_DISTRIBUT TYPE STRING,
NET_PRICE_AMOUNT TYPE STRING,
CONTROLLER TYPE STRING,
CURRENCY_CODE TYPE STRING,
CONTENT TYPE STRING,
PURCHASE_ORDER_ITEM TYPE STRING,
QUANITITY_UNIT TYPE STRING,
SERVICE TYPE STRING,
SERVICE_ENTRY_SHEET_ITEM TYPE STRING,
SERVICE_ENTRY_SHEET_ITEM_REFER TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
SCHEME_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
SERVICE_ENTRY_SHEET_ITEM_DESC TYPE STRING,
SERVICE_PERFORMANCE_DATE TYPE STRING,
SERVICE_PERFORMANCE_END_DATE TYPE STRING,
SERVICE_PERFORMER TYPE STRING,
WORK_ITEM TYPE STRING,
PURCHASE_CONTRACT_ITEM TYPE STRING,
SERVICE_ENTRY_SHT_ACCT_ASSGMT TYPE STRING,
CONTROLLER TYPE STRING,
SERVICE_ENTRY_SHEET_ACCT_ASSGM TYPE STRING,
ATTACHMENT TYPE STRING,
TEXT_COLLECTION TYPE STRING,
CONTROLLER TYPE STRING,
TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_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_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-CONTROLLER sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-ACTION_CODE sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-ACCOUNT_ASSIGNMENT_CATEGORY sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-CONFIRMED_QUANTITY sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-CONTROLLER sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-UNIT_CODE sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-CONTENT sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-MULTIPLE_ACCT_ASSGMT_DISTRIBUT sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-NET_PRICE_AMOUNT sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-CONTROLLER sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-CURRENCY_CODE sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-CONTENT sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-PURCHASE_ORDER_ITEM sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-QUANITITY_UNIT sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SERVICE sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SERVICE_ENTRY_SHEET_ITEM sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SERVICE_ENTRY_SHEET_ITEM_REFER sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-CONTROLLER sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SCHEME_ID sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SCHEME_AGENCY_ID sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SCHEME_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-CONTENT sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SERVICE_ENTRY_SHEET_ITEM_DESC sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SERVICE_PERFORMANCE_DATE sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SERVICE_PERFORMANCE_END_DATE sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SERVICE_PERFORMER sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-WORK_ITEM sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-PURCHASE_CONTRACT_ITEM sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SERVICE_ENTRY_SHT_ACCT_ASSGMT sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-CONTROLLER sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-SERVICE_ENTRY_SHEET_ACCT_ASSGM sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-ATTACHMENT sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-TEXT_COLLECTION sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-CONTROLLER sy-vline 
WA_MMPUR_SRVC_ENTR_SHT_ITEM_ENT1_STR-TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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