ABAP Select data from SAP table /PM0/ALUL_ILOGIC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PM0/ALUL_ILOGIC 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 /PM0/ALUL_ILOGIC. 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 /PM0/ALUL_ILOGIC 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_/PM0/ALUL_ILOGIC TYPE STANDARD TABLE OF /PM0/ALUL_ILOGIC,
      WA_/PM0/ALUL_ILOGIC TYPE /PM0/ALUL_ILOGIC,
      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: </PM0/ALUL_ILOGIC> TYPE /PM0/ALUL_ILOGIC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PM0/ALUL_ILOGIC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PM0/ALUL_ILOGIC
  INTO TABLE IT_/PM0/ALUL_ILOGIC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PM0/ALUL_ILOGIC
*  INTO TABLE @DATA(IT_/PM0/ALUL_ILOGIC2).
*--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_/PM0/ALUL_ILOGIC INDEX 1 INTO DATA(WA_/PM0/ALUL_ILOGIC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PM0/ALUL_ILOGIC ASSIGNING </PM0/ALUL_ILOGIC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PM0/ALUL_ILOGIC>-CLIENT = 1.
</PM0/ALUL_ILOGIC>-ILOGIC_ID = 1.
</PM0/ALUL_ILOGIC>-ILINT_ID = 1.
</PM0/ALUL_ILOGIC>-EFFDATE_DT = 1.
</PM0/ALUL_ILOGIC>-WAYINVEST_ID = 1.

ENDLOOP.

LOOP AT IT_/PM0/ALUL_ILOGIC INTO WA_/PM0/ALUL_ILOGIC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PM0/ALUL_ILOGIC-STATUS_VL, sy-vline,
  WA_/PM0/ALUL_ILOGIC-IMPLCLASS_TT, sy-vline,
  WA_/PM0/ALUL_ILOGIC-FNDTP_CD, sy-vline,
  WA_/PM0/ALUL_ILOGIC-FNDRULETP_ID, sy-vline,
  WA_/PM0/ALUL_ILOGIC-WORKDAYS_FG, sy-vline,
  WA_/PM0/ALUL_ILOGIC-DELAYDAYS_VL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PM0/ALUL_ILOGIC 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_/PM0/ALUL_ILOGIC 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_/PM0/ALUL_ILOGIC INTO WA_/PM0/ALUL_ILOGIC.


*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_/PM0/ALUL_ILOGIC_STR, 
CLIENT TYPE STRING,
ILOGIC_ID TYPE STRING,
ILINT_ID TYPE STRING,
EFFDATE_DT TYPE STRING,
WAYINVEST_ID TYPE STRING,
STATUS_VL TYPE STRING,
IMPLCLASS_TT TYPE STRING,
FNDTP_CD TYPE STRING,
FNDRULETP_ID TYPE STRING,
WORKDAYS_FG TYPE STRING,
DELAYDAYS_VL TYPE STRING,
WEEKDAY_CD TYPE STRING,
MATCHEFFDATE_FG TYPE STRING,
MATCHINVDATE_FG TYPE STRING,
PRCTP_ID TYPE STRING,
PRICESEARCH_ID TYPE STRING,
RELWEEKDAY_ID TYPE STRING,
SCOPE_VL TYPE STRING,
DAYFROM_CD TYPE STRING,
DAYTO_CD TYPE STRING,
INVDAY_CD TYPE STRING,
RELATIVEWEEK_CD TYPE STRING,
DATEFROM_CD TYPE STRING,
DATETO_CD TYPE STRING,
INVDATE_CD TYPE STRING,
RELATIVEMONTH_CD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PM0/ALUL_ILOGIC_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_/PM0/ALUL_ILOGIC_STR-CLIENT sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-ILOGIC_ID sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-ILINT_ID sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-EFFDATE_DT sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-WAYINVEST_ID sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-STATUS_VL sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-IMPLCLASS_TT sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-FNDTP_CD sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-FNDRULETP_ID sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-WORKDAYS_FG sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-DELAYDAYS_VL sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-WEEKDAY_CD sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-MATCHEFFDATE_FG sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-MATCHINVDATE_FG sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-PRCTP_ID sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-PRICESEARCH_ID sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-RELWEEKDAY_ID sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-SCOPE_VL sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-DAYFROM_CD sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-DAYTO_CD sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-INVDAY_CD sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-RELATIVEWEEK_CD sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-DATEFROM_CD sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-DATETO_CD sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-INVDATE_CD sy-vline 
WA_/PM0/ALUL_ILOGIC_STR-RELATIVEMONTH_CD sy-vline      INTO ld_text SEPARATED BY SPACE.

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