ABAP Select data from SAP table MMPUR_SES_ACCTASSGMT_ENTITY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MMPUR_SES_ACCTASSGMT_ENTITY 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_SES_ACCTASSGMT_ENTITY. 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_SES_ACCTASSGMT_ENTITY 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_SES_ACCTASSGMT_ENTITY TYPE STANDARD TABLE OF MMPUR_SES_ACCTASSGMT_ENTITY,
      WA_MMPUR_SES_ACCTASSGMT_ENTITY TYPE MMPUR_SES_ACCTASSGMT_ENTITY,
      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_SES_ACCTASSGMT_ENTITY> TYPE MMPUR_SES_ACCTASSGMT_ENTITY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPUR_SES_ACCTASSGMT_ENTITY
*  INTO TABLE @DATA(IT_MMPUR_SES_ACCTASSGMT_ENTITY2).
*--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_SES_ACCTASSGMT_ENTITY INDEX 1 INTO DATA(WA_MMPUR_SES_ACCTASSGMT_ENTITY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPUR_SES_ACCTASSGMT_ENTITY>-CONTROLLER = 1.
<MMPUR_SES_ACCTASSGMT_ENTITY>-ACTION_CODE = 1.
<MMPUR_SES_ACCTASSGMT_ENTITY>-ACCOUNT_ASSIGNMENT = 1.
<MMPUR_SES_ACCTASSGMT_ENTITY>-BUSINESS_AREA = 1.
<MMPUR_SES_ACCTASSGMT_ENTITY>-COMMITMENT_ITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPUR_SES_ACCTASSGMT_ENTITY-CONTROLLING_AREA, sy-vline,
  WA_MMPUR_SES_ACCTASSGMT_ENTITY-COST_CENTER, sy-vline,
  WA_MMPUR_SES_ACCTASSGMT_ENTITY-COST_OBJECT, sy-vline,
  WA_MMPUR_SES_ACCTASSGMT_ENTITY-EARMARKED_FUNDS_DOCUMENT, sy-vline,
  WA_MMPUR_SES_ACCTASSGMT_ENTITY-FIXED_ASSET, sy-vline,
  WA_MMPUR_SES_ACCTASSGMT_ENTITY-CONTROLLER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMPUR_SES_ACCTASSGMT_ENTITY 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_SES_ACCTASSGMT_ENTITY 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_SES_ACCTASSGMT_ENTITY INTO WA_MMPUR_SES_ACCTASSGMT_ENTITY.


*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_SES_ACCTASSGMT_ENTITY_STR, 
CONTROLLER TYPE STRING,
ACTION_CODE TYPE STRING,
ACCOUNT_ASSIGNMENT TYPE STRING,
BUSINESS_AREA TYPE STRING,
COMMITMENT_ITEM TYPE STRING,
CONTROLLING_AREA TYPE STRING,
COST_CENTER TYPE STRING,
COST_OBJECT TYPE STRING,
EARMARKED_FUNDS_DOCUMENT TYPE STRING,
FIXED_ASSET TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
FUND TYPE STRING,
FUNDS_CENTER TYPE STRING,
GLACCOUNT TYPE STRING,
MASTER_FIXED_ASSET TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
MULTIPLE_ACCT_ASSGMT_DISTR_PER TYPE STRING,
NET_AMOUNT TYPE STRING,
CONTROLLER TYPE STRING,
CURRENCY_CODE TYPE STRING,
CONTENT TYPE STRING,
NETWORK_ACTIVITY TYPE STRING,
NETWORK_ACTIVITY_INTERNAL_ID TYPE STRING,
ORDER_ID TYPE STRING,
PROFITABILITY_SEGMENT TYPE STRING,
PROFIT_CENTER TYPE STRING,
PROJECT_NETWORK TYPE STRING,
PROJECT_NETWORK_INTERNAL_ID TYPE STRING,
QUANTITY TYPE STRING,
CONTROLLER TYPE STRING,
UNIT_CODE TYPE STRING,
CONTENT TYPE STRING,
REAL_ESTATE_OBJECT TYPE STRING,
SALES_ORDER TYPE STRING,
SALES_ORDER_ITEM TYPE STRING,
SALES_ORDER_SCHEDULE_LINE TYPE STRING,
WBSELEMENT_INTERNAL_ID TYPE STRING,
WBSELEMENT_EXTERNAL_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMPUR_SES_ACCTASSGMT_ENTITY_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_SES_ACCTASSGMT_ENTITY_STR-CONTROLLER sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-ACTION_CODE sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-ACCOUNT_ASSIGNMENT sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-BUSINESS_AREA sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-COMMITMENT_ITEM sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-CONTROLLING_AREA sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-COST_CENTER sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-COST_OBJECT sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-EARMARKED_FUNDS_DOCUMENT sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-FIXED_ASSET sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-CONTROLLER sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-SCHEME_ID sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-SCHEME_AGENCY_ID sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-CONTENT sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-FUND sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-FUNDS_CENTER sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-GLACCOUNT sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-MASTER_FIXED_ASSET sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-CONTROLLER sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-SCHEME_ID sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-SCHEME_AGENCY_ID sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-CONTENT sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-MULTIPLE_ACCT_ASSGMT_DISTR_PER sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-NET_AMOUNT sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-CONTROLLER sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-CURRENCY_CODE sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-CONTENT sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-NETWORK_ACTIVITY sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-NETWORK_ACTIVITY_INTERNAL_ID sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-ORDER_ID sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-PROFITABILITY_SEGMENT sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-PROFIT_CENTER sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-PROJECT_NETWORK sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-PROJECT_NETWORK_INTERNAL_ID sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-QUANTITY sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-CONTROLLER sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-UNIT_CODE sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-CONTENT sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-REAL_ESTATE_OBJECT sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-SALES_ORDER sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-SALES_ORDER_ITEM sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-SALES_ORDER_SCHEDULE_LINE sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-WBSELEMENT_INTERNAL_ID sy-vline 
WA_MMPUR_SES_ACCTASSGMT_ENTITY_STR-WBSELEMENT_EXTERNAL_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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