ABAP Select data from SAP table IMAINTNTFSCRNGQ into internal table

Get Example source ABAP code based on a different SAP table
  

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMAINTNTFSCRNGQ
*  INTO TABLE @DATA(IT_IMAINTNTFSCRNGQ2).
*--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_IMAINTNTFSCRNGQ INDEX 1 INTO DATA(WA_IMAINTNTFSCRNGQ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IMAINTNTFSCRNGQ ASSIGNING <IMAINTNTFSCRNGQ>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMAINTNTFSCRNGQ>-MANDT = 1.
<IMAINTNTFSCRNGQ>-MAINTENANCENOTIFICATION = 1.
<IMAINTNTFSCRNGQ>-MAINTNOTIFINTERNALID = 1.
<IMAINTNTFSCRNGQ>-MAINTPRIORITY = 1.
<IMAINTNTFSCRNGQ>-MAINTPRIORITYTYPE = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMAINTNTFSCRNGQ-MAINTPRIORITYTYPEDESC, sy-vline,
WA_IMAINTNTFSCRNGQ-MAINTPRIORITYDESC, sy-vline,
WA_IMAINTNTFSCRNGQ-MAINTENANCEACTIVITYTYPE, sy-vline,
WA_IMAINTNTFSCRNGQ-MAINTENANCEACTIVITYTYPENAME, sy-vline,
WA_IMAINTNTFSCRNGQ-NOTIFICATIONTYPE, sy-vline,
WA_IMAINTNTFSCRNGQ-NOTIFICATIONTYPENAME, sy-vline.
ENDLOOP. *Add any further fields from structure WA_IMAINTNTFSCRNGQ 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_IMAINTNTFSCRNGQ 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_IMAINTNTFSCRNGQ INTO WA_IMAINTNTFSCRNGQ. *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 MAINTENANCENOTIFICATION CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_IMAINTNTFSCRNGQ-MAINTENANCENOTIFICATION IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_IMAINTNTFSCRNGQ-MAINTENANCENOTIFICATION.
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_IMAINTNTFSCRNGQ_STR,
MANDT TYPE STRING,
MAINTENANCENOTIFICATION TYPE STRING,
MAINTNOTIFINTERNALID TYPE STRING,
MAINTPRIORITY TYPE STRING,
MAINTPRIORITYTYPE TYPE STRING,
MAINTPRIORITYTYPEDESC TYPE STRING,
MAINTPRIORITYDESC TYPE STRING,
MAINTENANCEACTIVITYTYPE TYPE STRING,
MAINTENANCEACTIVITYTYPENAME TYPE STRING,
NOTIFICATIONTYPE TYPE STRING,
NOTIFICATIONTYPENAME TYPE STRING,
NOTIFPROCESSINGPHASE TYPE STRING,
USERSTATUS TYPE STRING,
REFERENCEDATE TYPE STRING,
STATUSPROFILE TYPE STRING,
STATUSPROFILENAME TYPE STRING,
MAINTENANCEPLANNERGROUP TYPE STRING,
MAINTENANCEPLANNINGPLANT TYPE STRING,
MAINWORKCENTER TYPE STRING,
MAINWORKCENTERPLANT TYPE STRING,
MAINTENANCEORDERTYPE TYPE STRING,
MAINTENANCEREVISION TYPE STRING,
MAINTENANCEWORKCENTERPLANT TYPE STRING,
MAINTENANCEWORKCENTER TYPE STRING,
NMBROFOPENMAINTNOTIFICATIONS TYPE STRING,END OF T_EKKO_STR. DATA: WA_IMAINTNTFSCRNGQ_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_IMAINTNTFSCRNGQ_STR-MANDT sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTENANCENOTIFICATION sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTNOTIFINTERNALID sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTPRIORITY sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTPRIORITYTYPE sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTPRIORITYTYPEDESC sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTPRIORITYDESC sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTENANCEACTIVITYTYPE sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTENANCEACTIVITYTYPENAME sy-vline
WA_IMAINTNTFSCRNGQ_STR-NOTIFICATIONTYPE sy-vline
WA_IMAINTNTFSCRNGQ_STR-NOTIFICATIONTYPENAME sy-vline
WA_IMAINTNTFSCRNGQ_STR-NOTIFPROCESSINGPHASE sy-vline
WA_IMAINTNTFSCRNGQ_STR-USERSTATUS sy-vline
WA_IMAINTNTFSCRNGQ_STR-REFERENCEDATE sy-vline
WA_IMAINTNTFSCRNGQ_STR-STATUSPROFILE sy-vline
WA_IMAINTNTFSCRNGQ_STR-STATUSPROFILENAME sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTENANCEPLANNERGROUP sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTENANCEPLANNINGPLANT sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINWORKCENTER sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINWORKCENTERPLANT sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTENANCEORDERTYPE sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTENANCEREVISION sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTENANCEWORKCENTERPLANT sy-vline
WA_IMAINTNTFSCRNGQ_STR-MAINTENANCEWORKCENTER sy-vline
WA_IMAINTNTFSCRNGQ_STR-NMBROFOPENMAINTNOTIFICATIONS sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.