ABAP Select data from SAP table CEHSMAINTNOTIF into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEHSMAINTNOTIF
*  INTO TABLE @DATA(IT_CEHSMAINTNOTIF2).
*--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_CEHSMAINTNOTIF INDEX 1 INTO DATA(WA_CEHSMAINTNOTIF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEHSMAINTNOTIF>-MANDT = 1.
<CEHSMAINTNOTIF>-EHSTASKDEFINITIONUUID = 1.
<CEHSMAINTNOTIF>-EHSTASKHOSTOBJECTINSTANCEUUID = 1.
<CEHSMAINTNOTIF>-EHSTASKHOSTOBJECTINSTANCE = 1.
<CEHSMAINTNOTIF>-EHSTASKHOSTOBJECTADAPTERCLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEHSMAINTNOTIF-EHSTASKWORKFLOWEVENT, sy-vline,
  WA_CEHSMAINTNOTIF-EHSTASKDEFINITIONTYPENAME, sy-vline,
  WA_CEHSMAINTNOTIF-EHSTASKHOSTSEMANTICOBJECT, sy-vline,
  WA_CEHSMAINTNOTIF-EHSTSKRELATEDOBJECTDESCRIPTION, sy-vline,
  WA_CEHSMAINTNOTIF-EHSTASKRECURRENCEDESCRIPTION, sy-vline,
  WA_CEHSMAINTNOTIF-EHSSEMANTICOBJECTNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEHSMAINTNOTIF 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_CEHSMAINTNOTIF 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_CEHSMAINTNOTIF INTO WA_CEHSMAINTNOTIF.


*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.

*Conversion exit ALPHA, internal->external for field EHSTASKOWNERUSER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEHSMAINTNOTIF-EHSTASKOWNERUSER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEHSMAINTNOTIF-EHSTASKOWNERUSER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EHSTASKAPPROVINGUSER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEHSMAINTNOTIF-EHSTASKAPPROVINGUSER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEHSMAINTNOTIF-EHSTASKAPPROVINGUSER.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CEHSMAINTNOTIF_STR, 
MANDT TYPE STRING,
EHSTASKDEFINITIONUUID TYPE STRING,
EHSTASKHOSTOBJECTINSTANCEUUID TYPE STRING,
EHSTASKHOSTOBJECTINSTANCE TYPE STRING,
EHSTASKHOSTOBJECTADAPTERCLASS TYPE STRING,
EHSTASKWORKFLOWEVENT TYPE STRING,
EHSTASKDEFINITIONTYPENAME TYPE STRING,
EHSTASKHOSTSEMANTICOBJECT TYPE STRING,
EHSTSKRELATEDOBJECTDESCRIPTION TYPE STRING,
EHSTASKRECURRENCEDESCRIPTION TYPE STRING,
EHSSEMANTICOBJECTNAME TYPE STRING,
EHSTASKPRIORITY TYPE STRING,
EHSTASKOWNERUSER TYPE STRING,
EHSTASKAPPROVINGUSER TYPE STRING,
EHSTASKDEFINITIONSTATUS TYPE STRING,
EHSTASKTITLE TYPE STRING,
EHSTASKDESCRIPTION TYPE STRING,
EHSLOCATIONUUID TYPE STRING,
EHSLOCATIONIDANDNAME TYPE STRING,
EHSTASKSTARTDATE TYPE STRING,
EHSTASKDUEINVALUE TYPE STRING,
EHSTASKDUEINUNIT TYPE STRING,
EHSTASKDUEDATE TYPE STRING,
EHSTASKISDUEONSAMEDAY TYPE STRING,
EHSTASKSTARTBEFOREVALUE TYPE STRING,
EHSTASKSTARTBEFOREUNIT TYPE STRING,
EHSTASKRECURRENCEISBYDUEDATE TYPE STRING,
EHSTASKRECURRENCETYPE TYPE STRING,
EHSTASKRECURRENCEINTERVAL TYPE STRING,
EHSTASKISRECURRINGONMONDAY TYPE STRING,
EHSTASKISRECURRINGONTUESDAY TYPE STRING,
EHSTASKISRECURRINGONWEDNESDAY TYPE STRING,
EHSTASKISRECURRINGONTHURSDAY TYPE STRING,
EHSTASKISRECURRINGONFRIDAY TYPE STRING,
EHSTASKISRECURRINGONSATURDAY TYPE STRING,
EHSTASKISRECURRINGONSUNDAY TYPE STRING,
EHSTASKRECURRENCEDAY TYPE STRING,
EHSTASKRECURRENCEMONTH TYPE STRING,
EHSTASKRECURRENCEOFFSET TYPE STRING,
EHSTASKRECURRENCEWEEKDAY TYPE STRING,
EHSTASKRECURRENCEENDTYPE TYPE STRING,
EHSTASKRECURRENCEENDDATE TYPE STRING,
EHSTASKRECURRENCEFIRSTDUEDATE TYPE STRING,
EHSTASKDEFINITIONISPAUSED TYPE STRING,
EHSTASKID TYPE STRING,
EHSTASKDEFINITIONMANAGEACTION TYPE STRING,
EHSTASKINSTANCEDISPLAYACTION TYPE STRING,
EHSTASKISENABLEDFORREFERENCING TYPE STRING,
EHSTASKISREFSECTIONVISIBLE TYPE STRING,
INCIDENTHASACCESSRESTRICTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEHSMAINTNOTIF_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_CEHSMAINTNOTIF_STR-MANDT sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKDEFINITIONUUID sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKHOSTOBJECTINSTANCEUUID sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKHOSTOBJECTINSTANCE sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKHOSTOBJECTADAPTERCLASS sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKWORKFLOWEVENT sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKDEFINITIONTYPENAME sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKHOSTSEMANTICOBJECT sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTSKRELATEDOBJECTDESCRIPTION sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKRECURRENCEDESCRIPTION sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSSEMANTICOBJECTNAME sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKPRIORITY sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKOWNERUSER sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKAPPROVINGUSER sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKDEFINITIONSTATUS sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKTITLE sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKDESCRIPTION sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSLOCATIONUUID sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSLOCATIONIDANDNAME sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKSTARTDATE sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKDUEINVALUE sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKDUEINUNIT sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKDUEDATE sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKISDUEONSAMEDAY sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKSTARTBEFOREVALUE sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKSTARTBEFOREUNIT sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKRECURRENCEISBYDUEDATE sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKRECURRENCETYPE sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKRECURRENCEINTERVAL sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKISRECURRINGONMONDAY sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKISRECURRINGONTUESDAY sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKISRECURRINGONWEDNESDAY sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKISRECURRINGONTHURSDAY sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKISRECURRINGONFRIDAY sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKISRECURRINGONSATURDAY sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKISRECURRINGONSUNDAY sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKRECURRENCEDAY sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKRECURRENCEMONTH sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKRECURRENCEOFFSET sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKRECURRENCEWEEKDAY sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKRECURRENCEENDTYPE sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKRECURRENCEENDDATE sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKRECURRENCEFIRSTDUEDATE sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKDEFINITIONISPAUSED sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKID sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKDEFINITIONMANAGEACTION sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKINSTANCEDISPLAYACTION sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKISENABLEDFORREFERENCING sy-vline 
WA_CEHSMAINTNOTIF_STR-EHSTASKISREFSECTIONVISIBLE sy-vline 
WA_CEHSMAINTNOTIF_STR-INCIDENTHASACCESSRESTRICTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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