ABAP Select data from SAP table APPLSEF_MAINT_REQ_ERPBSC_DATA1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP APPLSEF_MAINT_REQ_ERPBSC_DATA1 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 APPLSEF_MAINT_REQ_ERPBSC_DATA1. 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 APPLSEF_MAINT_REQ_ERPBSC_DATA1 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_APPLSEF_MAINT_REQ_ERPBSC_DATA1 TYPE STANDARD TABLE OF APPLSEF_MAINT_REQ_ERPBSC_DATA1,
      WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1 TYPE APPLSEF_MAINT_REQ_ERPBSC_DATA1,
      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: <APPLSEF_MAINT_REQ_ERPBSC_DATA1> TYPE APPLSEF_MAINT_REQ_ERPBSC_DATA1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_APPLSEF_MAINT_REQ_ERPBSC_DATA1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM APPLSEF_MAINT_REQ_ERPBSC_DATA1
  INTO TABLE IT_APPLSEF_MAINT_REQ_ERPBSC_DATA1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM APPLSEF_MAINT_REQ_ERPBSC_DATA1
*  INTO TABLE @DATA(IT_APPLSEF_MAINT_REQ_ERPBSC_DATA12).
*--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_APPLSEF_MAINT_REQ_ERPBSC_DATA1 INDEX 1 INTO DATA(WA_APPLSEF_MAINT_REQ_ERPBSC_DATA12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_APPLSEF_MAINT_REQ_ERPBSC_DATA1 ASSIGNING <APPLSEF_MAINT_REQ_ERPBSC_DATA1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<APPLSEF_MAINT_REQ_ERPBSC_DATA1>-CONTROLLER = 1.
<APPLSEF_MAINT_REQ_ERPBSC_DATA1>-MAINTENANCE_REQUEST_BASIC_DATA = 1.
<APPLSEF_MAINT_REQ_ERPBSC_DATA1>-CONTROLLER = 1.
<APPLSEF_MAINT_REQ_ERPBSC_DATA1>-MATERIAL_INTERNAL_ID = 1.
<APPLSEF_MAINT_REQ_ERPBSC_DATA1>-INSTALLATION_POINT_ID = 1.

ENDLOOP.

LOOP AT IT_APPLSEF_MAINT_REQ_ERPBSC_DATA1 INTO WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1-INDIVIDUAL_MATERIAL_ID, sy-vline,
  WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1-REPORTER_INTERNAL_ID, sy-vline,
  WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1-MAINTENANCE_PLANNING_PLANT_ID, sy-vline,
  WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1-MAINTENANCE_REQUEST_TYPE_CODE, sy-vline,
  WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1-REQUESTED_PROCESSING_PERIOD, sy-vline,
  WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1-CONTROLLER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1 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_APPLSEF_MAINT_REQ_ERPBSC_DATA1 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_APPLSEF_MAINT_REQ_ERPBSC_DATA1 INTO WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1.


*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_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR, 
CONTROLLER TYPE STRING,
MAINTENANCE_REQUEST_BASIC_DATA TYPE STRING,
CONTROLLER TYPE STRING,
MATERIAL_INTERNAL_ID TYPE STRING,
INSTALLATION_POINT_ID TYPE STRING,
INDIVIDUAL_MATERIAL_ID TYPE STRING,
REPORTER_INTERNAL_ID TYPE STRING,
MAINTENANCE_PLANNING_PLANT_ID TYPE STRING,
MAINTENANCE_REQUEST_TYPE_CODE TYPE STRING,
REQUESTED_PROCESSING_PERIOD TYPE STRING,
CONTROLLER TYPE STRING,
START_DATE_TIME TYPE STRING,
END_DATE_TIME TYPE STRING,
REPORTED_DATE_TIME TYPE STRING,
USER_STATUS_PROFILE_CODE TYPE STRING,
USER_STATUS_CODE TYPE STRING,
SYSTEM_STATUS_CODE TYPE STRING,
DESCRIPTION TYPE STRING,
CONTROLLER TYPE STRING,
LANGUAGE_CODE TYPE STRING,
VALUE TYPE STRING,
PROCESSING_CONDITIONS TYPE STRING,
CONTROLLER TYPE STRING,
QUERY_HITS_MAXIMUM_NUMBER_VALU TYPE STRING,
QUERY_HITS_UNLIMITED_INDICATOR TYPE STRING,
LAST_RETURNED_OBJECT_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_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_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-CONTROLLER sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-MAINTENANCE_REQUEST_BASIC_DATA sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-CONTROLLER sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-MATERIAL_INTERNAL_ID sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-INSTALLATION_POINT_ID sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-INDIVIDUAL_MATERIAL_ID sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-REPORTER_INTERNAL_ID sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-MAINTENANCE_PLANNING_PLANT_ID sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-MAINTENANCE_REQUEST_TYPE_CODE sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-REQUESTED_PROCESSING_PERIOD sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-CONTROLLER sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-START_DATE_TIME sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-END_DATE_TIME sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-REPORTED_DATE_TIME sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-USER_STATUS_PROFILE_CODE sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-USER_STATUS_CODE sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-SYSTEM_STATUS_CODE sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-DESCRIPTION sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-CONTROLLER sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-LANGUAGE_CODE sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-VALUE sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-PROCESSING_CONDITIONS sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-CONTROLLER sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-QUERY_HITS_MAXIMUM_NUMBER_VALU sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-QUERY_HITS_UNLIMITED_INDICATOR sy-vline 
WA_APPLSEF_MAINT_REQ_ERPBSC_DATA1_STR-LAST_RETURNED_OBJECT_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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