ABAP Select data from SAP table PIQAGR_APPRAISAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQAGR_APPRAISAL
*  INTO TABLE @DATA(IT_PIQAGR_APPRAISAL2).
*--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_PIQAGR_APPRAISAL INDEX 1 INTO DATA(WA_PIQAGR_APPRAISAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQAGR_APPRAISAL>-AGRID = 1.
<PIQAGR_APPRAISAL>-ATTNO = 1.
<PIQAGR_APPRAISAL>-AGRTYPE = 1.
<PIQAGR_APPRAISAL>-AGRSTAT = 1.
<PIQAGR_APPRAISAL>-ARCH_STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQAGR_APPRAISAL-AGRREMARK, sy-vline,
  WA_PIQAGR_APPRAISAL-AYEAR, sy-vline,
  WA_PIQAGR_APPRAISAL-APERIOD, sy-vline,
  WA_PIQAGR_APPRAISAL-AGRBEGDA, sy-vline,
  WA_PIQAGR_APPRAISAL-AGRENDDA, sy-vline,
  WA_PIQAGR_APPRAISAL-AGRDATEE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQAGR_APPRAISAL 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_PIQAGR_APPRAISAL 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_PIQAGR_APPRAISAL INTO WA_PIQAGR_APPRAISAL.


*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_PIQAGR_APPRAISAL_STR, 
AGRID TYPE STRING,
ATTNO TYPE STRING,
AGRTYPE TYPE STRING,
AGRSTAT TYPE STRING,
ARCH_STATUS TYPE STRING,
AGRREMARK TYPE STRING,
AYEAR TYPE STRING,
APERIOD TYPE STRING,
AGRBEGDA TYPE STRING,
AGRENDDA TYPE STRING,
AGRDATEE TYPE STRING,
AGRDATEL TYPE STRING,
AGRWEIGHT TYPE STRING,
UPAGRID TYPE STRING,
LAST_DAY_ATT TYPE STRING,
GRADESYM TYPE STRING,
GRADE TYPE STRING,
GRADESCALE TYPE STRING,
AGRNOTRATED TYPE STRING,
AGRDATE TYPE STRING,
AGRCOMPLETED TYPE STRING,
NOTEID TYPE STRING,
REGNUM TYPE STRING,
GRADECHANGED TYPE STRING,
PUBLICATIONDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQAGR_APPRAISAL_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_PIQAGR_APPRAISAL_STR-AGRID sy-vline 
WA_PIQAGR_APPRAISAL_STR-ATTNO sy-vline 
WA_PIQAGR_APPRAISAL_STR-AGRTYPE sy-vline 
WA_PIQAGR_APPRAISAL_STR-AGRSTAT sy-vline 
WA_PIQAGR_APPRAISAL_STR-ARCH_STATUS sy-vline 
WA_PIQAGR_APPRAISAL_STR-AGRREMARK sy-vline 
WA_PIQAGR_APPRAISAL_STR-AYEAR sy-vline 
WA_PIQAGR_APPRAISAL_STR-APERIOD sy-vline 
WA_PIQAGR_APPRAISAL_STR-AGRBEGDA sy-vline 
WA_PIQAGR_APPRAISAL_STR-AGRENDDA sy-vline 
WA_PIQAGR_APPRAISAL_STR-AGRDATEE sy-vline 
WA_PIQAGR_APPRAISAL_STR-AGRDATEL sy-vline 
WA_PIQAGR_APPRAISAL_STR-AGRWEIGHT sy-vline 
WA_PIQAGR_APPRAISAL_STR-UPAGRID sy-vline 
WA_PIQAGR_APPRAISAL_STR-LAST_DAY_ATT sy-vline 
WA_PIQAGR_APPRAISAL_STR-GRADESYM sy-vline 
WA_PIQAGR_APPRAISAL_STR-GRADE sy-vline 
WA_PIQAGR_APPRAISAL_STR-GRADESCALE sy-vline 
WA_PIQAGR_APPRAISAL_STR-AGRNOTRATED sy-vline 
WA_PIQAGR_APPRAISAL_STR-AGRDATE sy-vline 
WA_PIQAGR_APPRAISAL_STR-AGRCOMPLETED sy-vline 
WA_PIQAGR_APPRAISAL_STR-NOTEID sy-vline 
WA_PIQAGR_APPRAISAL_STR-REGNUM sy-vline 
WA_PIQAGR_APPRAISAL_STR-GRADECHANGED sy-vline 
WA_PIQAGR_APPRAISAL_STR-PUBLICATIONDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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