ABAP Select data from SAP table UJP_ENV_RULEH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UJP_ENV_RULEH
*  INTO TABLE @DATA(IT_UJP_ENV_RULEH2).
*--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_UJP_ENV_RULEH INDEX 1 INTO DATA(WA_UJP_ENV_RULEH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UJP_ENV_RULEH>-APPSET_PREFIX = 1.
<UJP_ENV_RULEH>-BIZ_RULE_TYPE = 1.
<UJP_ENV_RULEH>-RULE_ID = 1.
<UJP_ENV_RULEH>-OBJVERS = 1.
<UJP_ENV_RULEH>-FIELD_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UJP_ENV_RULEH-SEQ, sy-vline,
  WA_UJP_ENV_RULEH-APPSET_ID, sy-vline,
  WA_UJP_ENV_RULEH-FIELD_VALUE, sy-vline,
  WA_UJP_ENV_RULEH-HIER_GUID, sy-vline,
  WA_UJP_ENV_RULEH-STATUS, sy-vline,
  WA_UJP_ENV_RULEH-OBJSTAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UJP_ENV_RULEH 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_UJP_ENV_RULEH 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_UJP_ENV_RULEH INTO WA_UJP_ENV_RULEH.


*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_UJP_ENV_RULEH_STR, 
APPSET_PREFIX TYPE STRING,
BIZ_RULE_TYPE TYPE STRING,
RULE_ID TYPE STRING,
OBJVERS TYPE STRING,
FIELD_NAME TYPE STRING,
SEQ TYPE STRING,
APPSET_ID TYPE STRING,
FIELD_VALUE TYPE STRING,
HIER_GUID TYPE STRING,
STATUS TYPE STRING,
OBJSTAT TYPE STRING,
CONTREL TYPE STRING,
CONTTIMESTMP TYPE STRING,
OWNER TYPE STRING,
BWAPPL TYPE STRING,
ACTIVFL TYPE STRING,
TSTPNM TYPE STRING,
TIMESTMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UJP_ENV_RULEH_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_UJP_ENV_RULEH_STR-APPSET_PREFIX sy-vline 
WA_UJP_ENV_RULEH_STR-BIZ_RULE_TYPE sy-vline 
WA_UJP_ENV_RULEH_STR-RULE_ID sy-vline 
WA_UJP_ENV_RULEH_STR-OBJVERS sy-vline 
WA_UJP_ENV_RULEH_STR-FIELD_NAME sy-vline 
WA_UJP_ENV_RULEH_STR-SEQ sy-vline 
WA_UJP_ENV_RULEH_STR-APPSET_ID sy-vline 
WA_UJP_ENV_RULEH_STR-FIELD_VALUE sy-vline 
WA_UJP_ENV_RULEH_STR-HIER_GUID sy-vline 
WA_UJP_ENV_RULEH_STR-STATUS sy-vline 
WA_UJP_ENV_RULEH_STR-OBJSTAT sy-vline 
WA_UJP_ENV_RULEH_STR-CONTREL sy-vline 
WA_UJP_ENV_RULEH_STR-CONTTIMESTMP sy-vline 
WA_UJP_ENV_RULEH_STR-OWNER sy-vline 
WA_UJP_ENV_RULEH_STR-BWAPPL sy-vline 
WA_UJP_ENV_RULEH_STR-ACTIVFL sy-vline 
WA_UJP_ENV_RULEH_STR-TSTPNM sy-vline 
WA_UJP_ENV_RULEH_STR-TIMESTMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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