ABAP Select data from SAP table ISRMIGNENRTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISRMIGNENRTP
*  INTO TABLE @DATA(IT_ISRMIGNENRTP2).
*--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_ISRMIGNENRTP INDEX 1 INTO DATA(WA_ISRMIGNENRTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISRMIGNENRTP>-MANDT = 1.
<ISRMIGNENRTP>-PCSFTYMINIGNTNENGYPRPTYUUID = 1.
<ISRMIGNENRTP>-PCSFTYPRPTYUUID = 1.
<ISRMIGNENRTP>-CREATIONUTCDATETIME = 1.
<ISRMIGNENRTP>-CREATEDBYUSER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISRMIGNENRTP-LASTCHANGEUTCDATETIME, sy-vline,
  WA_ISRMIGNENRTP-LASTCHANGEDBYUSER, sy-vline,
  WA_ISRMIGNENRTP-PCSFTYMINIGNTNENGYLOWRQTYOPTR, sy-vline,
  WA_ISRMIGNENRTP-PCSFTYMINIGNTNENGYLOWRQTY, sy-vline,
  WA_ISRMIGNENRTP-PCSFTYMINIGNTNENGYLOWRQTYTXT, sy-vline,
  WA_ISRMIGNENRTP-PCSFTYMINIGNTNENGYUPRQTYOPTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISRMIGNENRTP 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_ISRMIGNENRTP 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_ISRMIGNENRTP INTO WA_ISRMIGNENRTP.


*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 CUNIT, internal->external for field PCSFTYMINIGNTNENGYQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISRMIGNENRTP-PCSFTYMINIGNTNENGYQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISRMIGNENRTP-PCSFTYMINIGNTNENGYQTYUNIT.
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_ISRMIGNENRTP_STR, 
MANDT TYPE STRING,
PCSFTYMINIGNTNENGYPRPTYUUID TYPE STRING,
PCSFTYPRPTYUUID TYPE STRING,
CREATIONUTCDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEUTCDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
PCSFTYMINIGNTNENGYLOWRQTYOPTR TYPE STRING,
PCSFTYMINIGNTNENGYLOWRQTY TYPE STRING,
PCSFTYMINIGNTNENGYLOWRQTYTXT TYPE STRING,
PCSFTYMINIGNTNENGYUPRQTYOPTR TYPE STRING,
PCSFTYMINIGNTNENGYUPRQTY TYPE STRING,
PCSFTYMINIGNTNENGYUPRQTYTXT TYPE STRING,
PCSFTYMINIGNTNENGYQTYUNIT TYPE STRING,
PCSFTYMINIGNTNENGYMETHPHRSUUID TYPE STRING,
PCSFTYNOTETEXT TYPE STRING,
PCSFTYHASNOAPPL TYPE STRING,
PCSFTYHASNODATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISRMIGNENRTP_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_ISRMIGNENRTP_STR-MANDT sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYMINIGNTNENGYPRPTYUUID sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYPRPTYUUID sy-vline 
WA_ISRMIGNENRTP_STR-CREATIONUTCDATETIME sy-vline 
WA_ISRMIGNENRTP_STR-CREATEDBYUSER sy-vline 
WA_ISRMIGNENRTP_STR-LASTCHANGEUTCDATETIME sy-vline 
WA_ISRMIGNENRTP_STR-LASTCHANGEDBYUSER sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYMINIGNTNENGYLOWRQTYOPTR sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYMINIGNTNENGYLOWRQTY sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYMINIGNTNENGYLOWRQTYTXT sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYMINIGNTNENGYUPRQTYOPTR sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYMINIGNTNENGYUPRQTY sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYMINIGNTNENGYUPRQTYTXT sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYMINIGNTNENGYQTYUNIT sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYMINIGNTNENGYMETHPHRSUUID sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYNOTETEXT sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYHASNOAPPL sy-vline 
WA_ISRMIGNENRTP_STR-PCSFTYHASNODATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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