ABAP Select data from SAP table WSALTDEFRC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WSALTDEFRC
*  INTO TABLE @DATA(IT_WSALTDEFRC2).
*--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_WSALTDEFRC INDEX 1 INTO DATA(WA_WSALTDEFRC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WSALTDEFRC>-CONTROLLER = 1.
<WSALTDEFRC>-RC = 1.
<WSALTDEFRC>-TID = 1.
<WSALTDEFRC>-CONTROLLER = 1.
<WSALTDEFRC>-MTSYSID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WSALTDEFRC-MTMCNAME, sy-vline,
  WA_WSALTDEFRC-MTNUMRANGE, sy-vline,
  WA_WSALTDEFRC-MTUID, sy-vline,
  WA_WSALTDEFRC-MTCLASS, sy-vline,
  WA_WSALTDEFRC-MTINDEX, sy-vline,
  WA_WSALTDEFRC-EXTINDEX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WSALTDEFRC 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_WSALTDEFRC 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_WSALTDEFRC INTO WA_WSALTDEFRC.


*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_WSALTDEFRC_STR, 
CONTROLLER TYPE STRING,
RC TYPE STRING,
TID TYPE STRING,
CONTROLLER TYPE STRING,
MTSYSID TYPE STRING,
MTMCNAME TYPE STRING,
MTNUMRANGE TYPE STRING,
MTUID TYPE STRING,
MTCLASS TYPE STRING,
MTINDEX TYPE STRING,
EXTINDEX TYPE STRING,
GENERAL_CUST TYPE STRING,
CONTROLLER TYPE STRING,
CUST_STATUS TYPE STRING,
USECLASS TYPE STRING,
SEVERITY TYPE STRING,
STAT_RECORD TYPE STRING,
VISIBILITY_LEVEL TYPE STRING,
TYPE_OF_ALERTS_TO_KEEP TYPE STRING,
NUM_OF_ALERTS_TO_KEEP TYPE STRING,
COLL_INTERVAL TYPE STRING,
INACTIVE_AFTER TYPE STRING,
WARMUPTIME TYPE STRING,
TEXT_CLASS TYPE STRING,
TEXT_ID TYPE STRING,
ATTR_GROUP_NAME TYPE STRING,
DELIVERY_STATUS TYPE STRING,
HIGH_ALERT_VALUE TYPE STRING,
HIGH_ALERT_SEVERITY TYPE STRING,
AID TYPE STRING,
CONTROLLER TYPE STRING,
ALSYSID TYPE STRING,
MSEGNAME TYPE STRING,
ALUNIQNUM TYPE STRING,
ALINDEX TYPE STRING,
ALERTDATE TYPE STRING,
ALERTTIME TYPE STRING,
CURRENT_VALUE TYPE STRING,
CURRENT_SEVERITY TYPE STRING,
CURRENT_VALUE_AID TYPE STRING,
CONTROLLER TYPE STRING,
ALSYSID TYPE STRING,
MSEGNAME TYPE STRING,
ALUNIQNUM TYPE STRING,
ALINDEX TYPE STRING,
ALERTDATE TYPE STRING,
ALERTTIME TYPE STRING,
ACTIVE_ALERTS TYPE STRING,
ALERTS_SINCE_STARTUP TYPE STRING,
TYP_DEF_STATUS TYPE STRING,
COLL_TOOL_DEF_NAME TYPE STRING,
COLL_TOOL_DEF_DISPATCHER TYPE STRING,
COLL_TOOL_DEF_STATUS TYPE STRING,
COLL_TOOL_DEF_USE_CLASS TYPE STRING,
ANALYSIS_TOOL_NAME TYPE STRING,
ANALYSIS_TOOL_DISPATCHER TYPE STRING,
ANALYSIS_TOOL_STATUS TYPE STRING,
ANALYSIS_TOOL_USE_CLASS TYPE STRING,
AUTOREACTION_DEF_NAME TYPE STRING,
AUTOREACTION_DEF_DISPATCHER TYPE STRING,
AUTOREACTION_DEF_STATUS TYPE STRING,
AUTOREACTION_DEF_USE_CLASS TYPE STRING,
COLL_TOOL_RUN_NAME TYPE STRING,
COLL_TOOL_RUN_STATUS TYPE STRING,
COLL_TOOL_RUN_DATE TYPE STRING,
COLL_TOOL_RUN_TIME TYPE STRING,
COLL_TOOL_RUN_DISPATCHER TYPE STRING,
AUTOREACTION_RUN_NAME TYPE STRING,
AUTOREACTION_RUN_STATUS TYPE STRING,
AUTOREACTION_RUN_DATE TYPE STRING,
AUTOREACTION_RUN_TIME TYPE STRING,
AUTOREACTION_RUN_DISPATCHER TYPE STRING,
OBJECTNAME TYPE STRING,
SHORT_NAME TYPE STRING,
MTE_SUBTYPE TYPE STRING,
ALERTS_IN_LIST TYPE STRING,
ALERT_TYP_CHILD_COUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WSALTDEFRC_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_WSALTDEFRC_STR-CONTROLLER sy-vline 
WA_WSALTDEFRC_STR-RC sy-vline 
WA_WSALTDEFRC_STR-TID sy-vline 
WA_WSALTDEFRC_STR-CONTROLLER sy-vline 
WA_WSALTDEFRC_STR-MTSYSID sy-vline 
WA_WSALTDEFRC_STR-MTMCNAME sy-vline 
WA_WSALTDEFRC_STR-MTNUMRANGE sy-vline 
WA_WSALTDEFRC_STR-MTUID sy-vline 
WA_WSALTDEFRC_STR-MTCLASS sy-vline 
WA_WSALTDEFRC_STR-MTINDEX sy-vline 
WA_WSALTDEFRC_STR-EXTINDEX sy-vline 
WA_WSALTDEFRC_STR-GENERAL_CUST sy-vline 
WA_WSALTDEFRC_STR-CONTROLLER sy-vline 
WA_WSALTDEFRC_STR-CUST_STATUS sy-vline 
WA_WSALTDEFRC_STR-USECLASS sy-vline 
WA_WSALTDEFRC_STR-SEVERITY sy-vline 
WA_WSALTDEFRC_STR-STAT_RECORD sy-vline 
WA_WSALTDEFRC_STR-VISIBILITY_LEVEL sy-vline 
WA_WSALTDEFRC_STR-TYPE_OF_ALERTS_TO_KEEP sy-vline 
WA_WSALTDEFRC_STR-NUM_OF_ALERTS_TO_KEEP sy-vline 
WA_WSALTDEFRC_STR-COLL_INTERVAL sy-vline 
WA_WSALTDEFRC_STR-INACTIVE_AFTER sy-vline 
WA_WSALTDEFRC_STR-WARMUPTIME sy-vline 
WA_WSALTDEFRC_STR-TEXT_CLASS sy-vline 
WA_WSALTDEFRC_STR-TEXT_ID sy-vline 
WA_WSALTDEFRC_STR-ATTR_GROUP_NAME sy-vline 
WA_WSALTDEFRC_STR-DELIVERY_STATUS sy-vline 
WA_WSALTDEFRC_STR-HIGH_ALERT_VALUE sy-vline 
WA_WSALTDEFRC_STR-HIGH_ALERT_SEVERITY sy-vline 
WA_WSALTDEFRC_STR-AID sy-vline 
WA_WSALTDEFRC_STR-CONTROLLER sy-vline 
WA_WSALTDEFRC_STR-ALSYSID sy-vline 
WA_WSALTDEFRC_STR-MSEGNAME sy-vline 
WA_WSALTDEFRC_STR-ALUNIQNUM sy-vline 
WA_WSALTDEFRC_STR-ALINDEX sy-vline 
WA_WSALTDEFRC_STR-ALERTDATE sy-vline 
WA_WSALTDEFRC_STR-ALERTTIME sy-vline 
WA_WSALTDEFRC_STR-CURRENT_VALUE sy-vline 
WA_WSALTDEFRC_STR-CURRENT_SEVERITY sy-vline 
WA_WSALTDEFRC_STR-CURRENT_VALUE_AID sy-vline 
WA_WSALTDEFRC_STR-CONTROLLER sy-vline 
WA_WSALTDEFRC_STR-ALSYSID sy-vline 
WA_WSALTDEFRC_STR-MSEGNAME sy-vline 
WA_WSALTDEFRC_STR-ALUNIQNUM sy-vline 
WA_WSALTDEFRC_STR-ALINDEX sy-vline 
WA_WSALTDEFRC_STR-ALERTDATE sy-vline 
WA_WSALTDEFRC_STR-ALERTTIME sy-vline 
WA_WSALTDEFRC_STR-ACTIVE_ALERTS sy-vline 
WA_WSALTDEFRC_STR-ALERTS_SINCE_STARTUP sy-vline 
WA_WSALTDEFRC_STR-TYP_DEF_STATUS sy-vline 
WA_WSALTDEFRC_STR-COLL_TOOL_DEF_NAME sy-vline 
WA_WSALTDEFRC_STR-COLL_TOOL_DEF_DISPATCHER sy-vline 
WA_WSALTDEFRC_STR-COLL_TOOL_DEF_STATUS sy-vline 
WA_WSALTDEFRC_STR-COLL_TOOL_DEF_USE_CLASS sy-vline 
WA_WSALTDEFRC_STR-ANALYSIS_TOOL_NAME sy-vline 
WA_WSALTDEFRC_STR-ANALYSIS_TOOL_DISPATCHER sy-vline 
WA_WSALTDEFRC_STR-ANALYSIS_TOOL_STATUS sy-vline 
WA_WSALTDEFRC_STR-ANALYSIS_TOOL_USE_CLASS sy-vline 
WA_WSALTDEFRC_STR-AUTOREACTION_DEF_NAME sy-vline 
WA_WSALTDEFRC_STR-AUTOREACTION_DEF_DISPATCHER sy-vline 
WA_WSALTDEFRC_STR-AUTOREACTION_DEF_STATUS sy-vline 
WA_WSALTDEFRC_STR-AUTOREACTION_DEF_USE_CLASS sy-vline 
WA_WSALTDEFRC_STR-COLL_TOOL_RUN_NAME sy-vline 
WA_WSALTDEFRC_STR-COLL_TOOL_RUN_STATUS sy-vline 
WA_WSALTDEFRC_STR-COLL_TOOL_RUN_DATE sy-vline 
WA_WSALTDEFRC_STR-COLL_TOOL_RUN_TIME sy-vline 
WA_WSALTDEFRC_STR-COLL_TOOL_RUN_DISPATCHER sy-vline 
WA_WSALTDEFRC_STR-AUTOREACTION_RUN_NAME sy-vline 
WA_WSALTDEFRC_STR-AUTOREACTION_RUN_STATUS sy-vline 
WA_WSALTDEFRC_STR-AUTOREACTION_RUN_DATE sy-vline 
WA_WSALTDEFRC_STR-AUTOREACTION_RUN_TIME sy-vline 
WA_WSALTDEFRC_STR-AUTOREACTION_RUN_DISPATCHER sy-vline 
WA_WSALTDEFRC_STR-OBJECTNAME sy-vline 
WA_WSALTDEFRC_STR-SHORT_NAME sy-vline 
WA_WSALTDEFRC_STR-MTE_SUBTYPE sy-vline 
WA_WSALTDEFRC_STR-ALERTS_IN_LIST sy-vline 
WA_WSALTDEFRC_STR-ALERT_TYP_CHILD_COUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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