ABAP Select data from SAP table PSM_ABADR_RULE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSM_ABADR_RULE
*  INTO TABLE @DATA(IT_PSM_ABADR_RULE2).
*--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_PSM_ABADR_RULE INDEX 1 INTO DATA(WA_PSM_ABADR_RULE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSM_ABADR_RULE>-STEP = 1.
<PSM_ABADR_RULE>-STEP_NO = 1.
<PSM_ABADR_RULE>-METHOD = 1.
<PSM_ABADR_RULE>-TAB_TEXT_LANGU = 1.
<PSM_ABADR_RULE>-GROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSM_ABADR_RULE-SUBGROUP, sy-vline,
  WA_PSM_ABADR_RULE-IS_USER_DEFINED, sy-vline,
  WA_PSM_ABADR_RULE-IS_MODIFIABLE, sy-vline,
  WA_PSM_ABADR_RULE-ISSUE_ERROR, sy-vline,
  WA_PSM_ABADR_RULE-EXIT_IF_FOUND, sy-vline,
  WA_PSM_ABADR_RULE-PARAM_1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSM_ABADR_RULE 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_PSM_ABADR_RULE 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_PSM_ABADR_RULE INTO WA_PSM_ABADR_RULE.


*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_PSM_ABADR_RULE_STR, 
STEP TYPE STRING,
STEP_NO TYPE STRING,
METHOD TYPE STRING,
TAB_TEXT_LANGU TYPE STRING,
GROUP TYPE STRING,
SUBGROUP TYPE STRING,
IS_USER_DEFINED TYPE STRING,
IS_MODIFIABLE TYPE STRING,
ISSUE_ERROR TYPE STRING,
EXIT_IF_FOUND TYPE STRING,
PARAM_1 TYPE STRING,
PARAM_2 TYPE STRING,
INT_ID TYPE STRING,
ID TYPE STRING,
IS_TIME_DEPENDANT TYPE STRING,
NEVER_TIME_DEPENDANT TYPE STRING,
NO_RANGES TYPE STRING,
IS_SAP_STEP TYPE STRING,
APPLDATA TYPE STRING,
TAB_CONDITIONS TYPE STRING,
TAB_SOURCES TYPE STRING,
TAB_TARGETS TYPE STRING,
TAB_KEYS TYPE STRING,
TAB_VALUES TYPE STRING,
MODIFIED_BY TYPE STRING,
MODIFIED_ON TYPE STRING,
IS_INACTIVE TYPE STRING,
EXIT_IF_NEXEC TYPE STRING,
EXIT_IF_EXEC TYPE STRING,
ERROR_NEXEC TYPE STRING,
NO_COMBINED_FIELDS TYPE STRING,
TAB_ENTRIES TYPE STRING,
TAB_ID_INDEX TYPE STRING,
TAB_IDS_UNCHECKED TYPE STRING,
TAB_IDS_ERROR TYPE STRING,
TAB_IDS_ORIGINAL TYPE STRING,
TAB_IDS_ARCHIVE TYPE STRING,
TAB_DELETED_ENTRIES TYPE STRING,
COUNT_ENTRIES TYPE STRING,
COUNT_SOURCES TYPE STRING,
COUNT_TARGETS TYPE STRING,
ID_COUNTER TYPE STRING,
ID_OLD_MAX TYPE STRING,
PROGNAME TYPE STRING,
RULE_HAS_CHANGED TYPE STRING,
SORT_ID TYPE STRING,
SORTED_FOR_FIND TYPE STRING,
TAB_ERROR_MSGS TYPE STRING,
DEFAULT_DATE TYPE STRING,
DO_SHOW_PROGRESS_INDICATOR TYPE STRING,
DO_NOT_USE_MASS_COMMIT TYPE STRING,
FLOAT_VALUES_USED TYPE STRING,
BUFFER TYPE STRING,
FIELDNAME TYPE STRING,
NAME TYPE STRING,
IDENTIFIER TYPE STRING,
FIELDNAME TYPE STRING,
TABNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSM_ABADR_RULE_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_PSM_ABADR_RULE_STR-STEP sy-vline 
WA_PSM_ABADR_RULE_STR-STEP_NO sy-vline 
WA_PSM_ABADR_RULE_STR-METHOD sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_TEXT_LANGU sy-vline 
WA_PSM_ABADR_RULE_STR-GROUP sy-vline 
WA_PSM_ABADR_RULE_STR-SUBGROUP sy-vline 
WA_PSM_ABADR_RULE_STR-IS_USER_DEFINED sy-vline 
WA_PSM_ABADR_RULE_STR-IS_MODIFIABLE sy-vline 
WA_PSM_ABADR_RULE_STR-ISSUE_ERROR sy-vline 
WA_PSM_ABADR_RULE_STR-EXIT_IF_FOUND sy-vline 
WA_PSM_ABADR_RULE_STR-PARAM_1 sy-vline 
WA_PSM_ABADR_RULE_STR-PARAM_2 sy-vline 
WA_PSM_ABADR_RULE_STR-INT_ID sy-vline 
WA_PSM_ABADR_RULE_STR-ID sy-vline 
WA_PSM_ABADR_RULE_STR-IS_TIME_DEPENDANT sy-vline 
WA_PSM_ABADR_RULE_STR-NEVER_TIME_DEPENDANT sy-vline 
WA_PSM_ABADR_RULE_STR-NO_RANGES sy-vline 
WA_PSM_ABADR_RULE_STR-IS_SAP_STEP sy-vline 
WA_PSM_ABADR_RULE_STR-APPLDATA sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_CONDITIONS sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_SOURCES sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_TARGETS sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_KEYS sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_VALUES sy-vline 
WA_PSM_ABADR_RULE_STR-MODIFIED_BY sy-vline 
WA_PSM_ABADR_RULE_STR-MODIFIED_ON sy-vline 
WA_PSM_ABADR_RULE_STR-IS_INACTIVE sy-vline 
WA_PSM_ABADR_RULE_STR-EXIT_IF_NEXEC sy-vline 
WA_PSM_ABADR_RULE_STR-EXIT_IF_EXEC sy-vline 
WA_PSM_ABADR_RULE_STR-ERROR_NEXEC sy-vline 
WA_PSM_ABADR_RULE_STR-NO_COMBINED_FIELDS sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_ENTRIES sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_ID_INDEX sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_IDS_UNCHECKED sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_IDS_ERROR sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_IDS_ORIGINAL sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_IDS_ARCHIVE sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_DELETED_ENTRIES sy-vline 
WA_PSM_ABADR_RULE_STR-COUNT_ENTRIES sy-vline 
WA_PSM_ABADR_RULE_STR-COUNT_SOURCES sy-vline 
WA_PSM_ABADR_RULE_STR-COUNT_TARGETS sy-vline 
WA_PSM_ABADR_RULE_STR-ID_COUNTER sy-vline 
WA_PSM_ABADR_RULE_STR-ID_OLD_MAX sy-vline 
WA_PSM_ABADR_RULE_STR-PROGNAME sy-vline 
WA_PSM_ABADR_RULE_STR-RULE_HAS_CHANGED sy-vline 
WA_PSM_ABADR_RULE_STR-SORT_ID sy-vline 
WA_PSM_ABADR_RULE_STR-SORTED_FOR_FIND sy-vline 
WA_PSM_ABADR_RULE_STR-TAB_ERROR_MSGS sy-vline 
WA_PSM_ABADR_RULE_STR-DEFAULT_DATE sy-vline 
WA_PSM_ABADR_RULE_STR-DO_SHOW_PROGRESS_INDICATOR sy-vline 
WA_PSM_ABADR_RULE_STR-DO_NOT_USE_MASS_COMMIT sy-vline 
WA_PSM_ABADR_RULE_STR-FLOAT_VALUES_USED sy-vline 
WA_PSM_ABADR_RULE_STR-BUFFER sy-vline 
WA_PSM_ABADR_RULE_STR-FIELDNAME sy-vline 
WA_PSM_ABADR_RULE_STR-NAME sy-vline 
WA_PSM_ABADR_RULE_STR-IDENTIFIER sy-vline 
WA_PSM_ABADR_RULE_STR-FIELDNAME sy-vline 
WA_PSM_ABADR_RULE_STR-TABNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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