ABAP Select data from SAP table PIQ_S_SCHED_ASSESSMENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQ_S_SCHED_ASSESSMENT
*  INTO TABLE @DATA(IT_PIQ_S_SCHED_ASSESSMENT2).
*--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_PIQ_S_SCHED_ASSESSMENT INDEX 1 INTO DATA(WA_PIQ_S_SCHED_ASSESSMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQ_S_SCHED_ASSESSMENT>-EVOB_PLVAR = 1.
<PIQ_S_SCHED_ASSESSMENT>-EVOB_OTYPE = 1.
<PIQ_S_SCHED_ASSESSMENT>-EVOB_OBJID = 1.
<PIQ_S_SCHED_ASSESSMENT>-PERYR = 1.
<PIQ_S_SCHED_ASSESSMENT>-PERID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQ_S_SCHED_ASSESSMENT-ATTNO, sy-vline,
  WA_PIQ_S_SCHED_ASSESSMENT-OFFERNO, sy-vline,
  WA_PIQ_S_SCHED_ASSESSMENT-EVENT_ID, sy-vline,
  WA_PIQ_S_SCHED_ASSESSMENT-EVENT_SEQNR, sy-vline,
  WA_PIQ_S_SCHED_ASSESSMENT-EXAMMODE, sy-vline,
  WA_PIQ_S_SCHED_ASSESSMENT-DURATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQ_S_SCHED_ASSESSMENT 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_PIQ_S_SCHED_ASSESSMENT 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_PIQ_S_SCHED_ASSESSMENT INTO WA_PIQ_S_SCHED_ASSESSMENT.


*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_PIQ_S_SCHED_ASSESSMENT_STR, 
EVOB_PLVAR TYPE STRING,
EVOB_OTYPE TYPE STRING,
EVOB_OBJID TYPE STRING,
PERYR TYPE STRING,
PERID TYPE STRING,
ATTNO TYPE STRING,
OFFERNO TYPE STRING,
EVENT_ID TYPE STRING,
EVENT_SEQNR TYPE STRING,
EXAMMODE TYPE STRING,
DURATION TYPE STRING,
DURUNIT TYPE STRING,
EXAMORG TYPE STRING,
REGIS_BEGIN TYPE STRING,
REGIS_BEGTIME TYPE STRING,
REGIS_END TYPE STRING,
REGIS_ENDTIME TYPE STRING,
DEREG_END TYPE STRING,
DEREG_ENDTIME TYPE STRING,
LOCATION_OBJID TYPE STRING,
BUILDING TYPE STRING,
ROOM_OBJID TYPE STRING,
CAPACITY TYPE STRING,
EXAMDATE TYPE STRING,
EXAMBEGTIME TYPE STRING,
EXAMENDTIME TYPE STRING,
SEQNR TYPE STRING,
ACTIVITY TYPE STRING,
EXAMFUNCTION TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
EXAMINER_SHORT TYPE STRING,
EXAMINER_STEXT TYPE STRING,
LOCATION_SHORT TYPE STRING,
LOCATION_STEXT TYPE STRING,
ROOM_SHORT TYPE STRING,
ROOM_STEXT TYPE STRING,
BUILDING_STEXT TYPE STRING,
AVAIL_CAPACITY TYPE STRING,
MODULE_ID TYPE STRING,
PROGRAM_ID TYPE STRING,
EXAMINERS_STEXT TYPE STRING,
REG_WINDOW_FLAG TYPE STRING,
WITHDRAW_FLAG TYPE STRING,
SWAP_FLAG TYPE STRING,
SCHED_STATID TYPE STRING,
SCHED_STATDESC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQ_S_SCHED_ASSESSMENT_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_PIQ_S_SCHED_ASSESSMENT_STR-EVOB_PLVAR sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EVOB_OTYPE sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EVOB_OBJID sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-PERYR sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-PERID sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-ATTNO sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-OFFERNO sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EVENT_ID sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EVENT_SEQNR sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EXAMMODE sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-DURATION sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-DURUNIT sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EXAMORG sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-REGIS_BEGIN sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-REGIS_BEGTIME sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-REGIS_END sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-REGIS_ENDTIME sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-DEREG_END sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-DEREG_ENDTIME sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-LOCATION_OBJID sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-BUILDING sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-ROOM_OBJID sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-CAPACITY sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EXAMDATE sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EXAMBEGTIME sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EXAMENDTIME sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-SEQNR sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-ACTIVITY sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EXAMFUNCTION sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-OTYPE sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-OBJID sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EXAMINER_SHORT sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EXAMINER_STEXT sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-LOCATION_SHORT sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-LOCATION_STEXT sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-ROOM_SHORT sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-ROOM_STEXT sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-BUILDING_STEXT sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-AVAIL_CAPACITY sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-MODULE_ID sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-PROGRAM_ID sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-EXAMINERS_STEXT sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-REG_WINDOW_FLAG sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-WITHDRAW_FLAG sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-SWAP_FLAG sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-SCHED_STATID sy-vline 
WA_PIQ_S_SCHED_ASSESSMENT_STR-SCHED_STATDESC sy-vline      INTO ld_text SEPARATED BY SPACE.

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