ABAP Select data from SAP table CRMT_IC_GENIL_ALERT_ATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_IC_GENIL_ALERT_ATTR
*  INTO TABLE @DATA(IT_CRMT_IC_GENIL_ALERT_ATTR2).
*--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_CRMT_IC_GENIL_ALERT_ATTR INDEX 1 INTO DATA(WA_CRMT_IC_GENIL_ALERT_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_IC_GENIL_ALERT_ATTR>-CLIENT = 1.
<CRMT_IC_GENIL_ALERT_ATTR>-NAME = 1.
<CRMT_IC_GENIL_ALERT_ATTR>-LANGUAGE = 1.
<CRMT_IC_GENIL_ALERT_ATTR>-PRIORITY = 1.
<CRMT_IC_GENIL_ALERT_ATTR>-NAVLINK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_IC_GENIL_ALERT_ATTR-TEXT, sy-vline,
  WA_CRMT_IC_GENIL_ALERT_ATTR-TOOLTIP, sy-vline,
  WA_CRMT_IC_GENIL_ALERT_ATTR-DESCRIPTION, sy-vline,
  WA_CRMT_IC_GENIL_ALERT_ATTR-COLOR, sy-vline,
  WA_CRMT_IC_GENIL_ALERT_ATTR-ALTFORMAT, sy-vline,
  WA_CRMT_IC_GENIL_ALERT_ATTR-ALTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_IC_GENIL_ALERT_ATTR 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_CRMT_IC_GENIL_ALERT_ATTR 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_CRMT_IC_GENIL_ALERT_ATTR INTO WA_CRMT_IC_GENIL_ALERT_ATTR.


*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_CRMT_IC_GENIL_ALERT_ATTR_STR, 
CLIENT TYPE STRING,
NAME TYPE STRING,
LANGUAGE TYPE STRING,
PRIORITY TYPE STRING,
NAVLINK TYPE STRING,
TEXT TYPE STRING,
TOOLTIP TYPE STRING,
DESCRIPTION TYPE STRING,
COLOR TYPE STRING,
ALTFORMAT TYPE STRING,
ALTTYPE TYPE STRING,
SCHEMAID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_IC_GENIL_ALERT_ATTR_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_CRMT_IC_GENIL_ALERT_ATTR_STR-CLIENT sy-vline 
WA_CRMT_IC_GENIL_ALERT_ATTR_STR-NAME sy-vline 
WA_CRMT_IC_GENIL_ALERT_ATTR_STR-LANGUAGE sy-vline 
WA_CRMT_IC_GENIL_ALERT_ATTR_STR-PRIORITY sy-vline 
WA_CRMT_IC_GENIL_ALERT_ATTR_STR-NAVLINK sy-vline 
WA_CRMT_IC_GENIL_ALERT_ATTR_STR-TEXT sy-vline 
WA_CRMT_IC_GENIL_ALERT_ATTR_STR-TOOLTIP sy-vline 
WA_CRMT_IC_GENIL_ALERT_ATTR_STR-DESCRIPTION sy-vline 
WA_CRMT_IC_GENIL_ALERT_ATTR_STR-COLOR sy-vline 
WA_CRMT_IC_GENIL_ALERT_ATTR_STR-ALTFORMAT sy-vline 
WA_CRMT_IC_GENIL_ALERT_ATTR_STR-ALTTYPE sy-vline 
WA_CRMT_IC_GENIL_ALERT_ATTR_STR-SCHEMAID sy-vline      INTO ld_text SEPARATED BY SPACE.

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