ABAP Select data from SAP table PIQ_APPRAISAL_TEMPL 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 PIQ_APPRAISAL_TEMPL 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_APPRAISAL_TEMPL. 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_APPRAISAL_TEMPL 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_APPRAISAL_TEMPL TYPE STANDARD TABLE OF PIQ_APPRAISAL_TEMPL,
      WA_PIQ_APPRAISAL_TEMPL TYPE PIQ_APPRAISAL_TEMPL,
      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_APPRAISAL_TEMPL> TYPE PIQ_APPRAISAL_TEMPL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQ_APPRAISAL_TEMPL
*  INTO TABLE @DATA(IT_PIQ_APPRAISAL_TEMPL2).
*--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_APPRAISAL_TEMPL INDEX 1 INTO DATA(WA_PIQ_APPRAISAL_TEMPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQ_APPRAISAL_TEMPL>-COURSE_ID = 1.
<PIQ_APPRAISAL_TEMPL>-COURSE_NAME = 1.
<PIQ_APPRAISAL_TEMPL>-ACAD_YEAR = 1.
<PIQ_APPRAISAL_TEMPL>-ACAD_SESS = 1.
<PIQ_APPRAISAL_TEMPL>-AGRTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQ_APPRAISAL_TEMPL-AGRTYPET, sy-vline,
  WA_PIQ_APPRAISAL_TEMPL-AGRWEIGHT, sy-vline,
  WA_PIQ_APPRAISAL_TEMPL-EDIT, sy-vline,
  WA_PIQ_APPRAISAL_TEMPL-PARENT_IND, sy-vline,
  WA_PIQ_APPRAISAL_TEMPL-STU_COUNT, sy-vline,
  WA_PIQ_APPRAISAL_TEMPL-AVG_GRADE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQ_APPRAISAL_TEMPL 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_APPRAISAL_TEMPL 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_APPRAISAL_TEMPL INTO WA_PIQ_APPRAISAL_TEMPL.


*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 CUNIT, internal->external for field CREDITS_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIQ_APPRAISAL_TEMPL-CREDITS_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQ_APPRAISAL_TEMPL-CREDITS_UNIT.
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_PIQ_APPRAISAL_TEMPL_STR, 
COURSE_ID TYPE STRING,
COURSE_NAME TYPE STRING,
ACAD_YEAR TYPE STRING,
ACAD_SESS TYPE STRING,
AGRTYPE TYPE STRING,
AGRTYPET TYPE STRING,
AGRWEIGHT TYPE STRING,
EDIT TYPE STRING,
PARENT_IND TYPE STRING,
STU_COUNT TYPE STRING,
AVG_GRADE TYPE STRING,
SCALE_ID TYPE STRING,
APPRTYP_COUNT TYPE STRING,
ABOVE_AVG_CNT TYPE STRING,
BELOW_AVG_CNT TYPE STRING,
TOTAL_CNT TYPE STRING,
ERROR_MESSAGE TYPE STRING,
FINAL_IND TYPE STRING,
PARENT_APPR_TYPE TYPE STRING,
STATUS_IND TYPE STRING,
REMARKS_IND TYPE STRING,
STATUS TYPE STRING,
STATUS_CODE TYPE STRING,
APPR_DATE TYPE STRING,
EXAM_DATE TYPE STRING,
EXAM_IND TYPE STRING,
ASSESS_NO TYPE STRING,
PROGRAM_TXT TYPE STRING,
CREDITS TYPE STRING,
CREDITS_UNIT TYPE STRING,
CREDITS_UNITT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQ_APPRAISAL_TEMPL_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_APPRAISAL_TEMPL_STR-COURSE_ID sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-COURSE_NAME sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-ACAD_YEAR sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-ACAD_SESS sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-AGRTYPE sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-AGRTYPET sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-AGRWEIGHT sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-EDIT sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-PARENT_IND sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-STU_COUNT sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-AVG_GRADE sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-SCALE_ID sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-APPRTYP_COUNT sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-ABOVE_AVG_CNT sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-BELOW_AVG_CNT sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-TOTAL_CNT sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-ERROR_MESSAGE sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-FINAL_IND sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-PARENT_APPR_TYPE sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-STATUS_IND sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-REMARKS_IND sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-STATUS sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-STATUS_CODE sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-APPR_DATE sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-EXAM_DATE sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-EXAM_IND sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-ASSESS_NO sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-PROGRAM_TXT sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-CREDITS sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-CREDITS_UNIT sy-vline 
WA_PIQ_APPRAISAL_TEMPL_STR-CREDITS_UNITT sy-vline      INTO ld_text SEPARATED BY SPACE.

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