ABAP Select data from SAP table PIQ_US_ITEMNCAA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PIQ_US_ITEMNCAA 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_US_ITEMNCAA. 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_US_ITEMNCAA 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_US_ITEMNCAA TYPE STANDARD TABLE OF PIQ_US_ITEMNCAA,
      WA_PIQ_US_ITEMNCAA TYPE PIQ_US_ITEMNCAA,
      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_US_ITEMNCAA> TYPE PIQ_US_ITEMNCAA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQ_US_ITEMNCAA
*  INTO TABLE @DATA(IT_PIQ_US_ITEMNCAA2).
*--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_US_ITEMNCAA INDEX 1 INTO DATA(WA_PIQ_US_ITEMNCAA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQ_US_ITEMNCAA>-ACTION = 1.
<PIQ_US_ITEMNCAA>-TESTCODE = 1.
<PIQ_US_ITEMNCAA>-P1SCORE = 1.
<PIQ_US_ITEMNCAA>-P2SCORE = 1.
<PIQ_US_ITEMNCAA>-P3SCORE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQ_US_ITEMNCAA-P4SCORE, sy-vline,
  WA_PIQ_US_ITEMNCAA-P5SCORE, sy-vline,
  WA_PIQ_US_ITEMNCAA-TESTDATE, sy-vline,
  WA_PIQ_US_ITEMNCAA-SCRRECDATE, sy-vline,
  WA_PIQ_US_ITEMNCAA-SATSCORE, sy-vline,
  WA_PIQ_US_ITEMNCAA-ACTSCORE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQ_US_ITEMNCAA 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_US_ITEMNCAA 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_US_ITEMNCAA INTO WA_PIQ_US_ITEMNCAA.


*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_US_ITEMNCAA_STR, 
ACTION TYPE STRING,
TESTCODE TYPE STRING,
P1SCORE TYPE STRING,
P2SCORE TYPE STRING,
P3SCORE TYPE STRING,
P4SCORE TYPE STRING,
P5SCORE TYPE STRING,
TESTDATE TYPE STRING,
SCRRECDATE TYPE STRING,
SATSCORE TYPE STRING,
ACTSCORE TYPE STRING,
COMMENTS TYPE STRING,
CLASSDESC TYPE STRING,
DEGREEID TYPE STRING,
DEGREEDATE TYPE STRING,
FULTIME TYPE STRING,
SASTMT TYPE STRING,
SAAFFIRM TYPE STRING,
DRUGTEST TYPE STRING,
SAAIDID TYPE STRING,
FUNDCODE TYPE STRING,
AWARDDATE TYPE STRING,
AWARDPERIOD TYPE STRING,
AWARDAMT TYPE STRING,
SPORTCODE TYPE STRING,
ROLLOVERFLAG TYPE STRING,
SCHOOLAIDID TYPE STRING,
VALUE TYPE STRING,
GUARDIANNAME TYPE STRING,
ADDRESS1 TYPE STRING,
ADDRESS2 TYPE STRING,
PROVINCE TYPE STRING,
COUNTRY TYPE STRING,
XFERTYPE TYPE STRING,
STUDID TYPE STRING,
SSN TYPE STRING,
NCAA_GENDER TYPE STRING,
RECRUITED TYPE STRING,
EMAIL TYPE STRING,
PHONE TYPE STRING,
CELLPHONE TYPE STRING,
ONCAMPUS TYPE STRING,
STATRES TYPE STRING,
RACECODE TYPE STRING,
HSGRADDATE TYPE STRING,
FULENRTMANY TYPE STRING,
FULENTMHERE TYPE STRING,
FULENYRANY TYPE STRING,
FULENYRHERE TYPE STRING,
ORGID TYPE STRING,
ORGPWD TYPE STRING,
USERID TYPE STRING,
USERPWD TYPE STRING,
MIDDLE_NAME TYPE STRING,
NCAA_DOB TYPE STRING,
SPORTCODE_AWARD TYPE STRING,
CHANGEDATE TYPE STRING,
CHANGESTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQ_US_ITEMNCAA_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_US_ITEMNCAA_STR-ACTION sy-vline 
WA_PIQ_US_ITEMNCAA_STR-TESTCODE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-P1SCORE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-P2SCORE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-P3SCORE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-P4SCORE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-P5SCORE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-TESTDATE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-SCRRECDATE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-SATSCORE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-ACTSCORE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-COMMENTS sy-vline 
WA_PIQ_US_ITEMNCAA_STR-CLASSDESC sy-vline 
WA_PIQ_US_ITEMNCAA_STR-DEGREEID sy-vline 
WA_PIQ_US_ITEMNCAA_STR-DEGREEDATE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-FULTIME sy-vline 
WA_PIQ_US_ITEMNCAA_STR-SASTMT sy-vline 
WA_PIQ_US_ITEMNCAA_STR-SAAFFIRM sy-vline 
WA_PIQ_US_ITEMNCAA_STR-DRUGTEST sy-vline 
WA_PIQ_US_ITEMNCAA_STR-SAAIDID sy-vline 
WA_PIQ_US_ITEMNCAA_STR-FUNDCODE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-AWARDDATE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-AWARDPERIOD sy-vline 
WA_PIQ_US_ITEMNCAA_STR-AWARDAMT sy-vline 
WA_PIQ_US_ITEMNCAA_STR-SPORTCODE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-ROLLOVERFLAG sy-vline 
WA_PIQ_US_ITEMNCAA_STR-SCHOOLAIDID sy-vline 
WA_PIQ_US_ITEMNCAA_STR-VALUE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-GUARDIANNAME sy-vline 
WA_PIQ_US_ITEMNCAA_STR-ADDRESS1 sy-vline 
WA_PIQ_US_ITEMNCAA_STR-ADDRESS2 sy-vline 
WA_PIQ_US_ITEMNCAA_STR-PROVINCE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-COUNTRY sy-vline 
WA_PIQ_US_ITEMNCAA_STR-XFERTYPE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-STUDID sy-vline 
WA_PIQ_US_ITEMNCAA_STR-SSN sy-vline 
WA_PIQ_US_ITEMNCAA_STR-NCAA_GENDER sy-vline 
WA_PIQ_US_ITEMNCAA_STR-RECRUITED sy-vline 
WA_PIQ_US_ITEMNCAA_STR-EMAIL sy-vline 
WA_PIQ_US_ITEMNCAA_STR-PHONE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-CELLPHONE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-ONCAMPUS sy-vline 
WA_PIQ_US_ITEMNCAA_STR-STATRES sy-vline 
WA_PIQ_US_ITEMNCAA_STR-RACECODE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-HSGRADDATE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-FULENRTMANY sy-vline 
WA_PIQ_US_ITEMNCAA_STR-FULENTMHERE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-FULENYRANY sy-vline 
WA_PIQ_US_ITEMNCAA_STR-FULENYRHERE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-ORGID sy-vline 
WA_PIQ_US_ITEMNCAA_STR-ORGPWD sy-vline 
WA_PIQ_US_ITEMNCAA_STR-USERID sy-vline 
WA_PIQ_US_ITEMNCAA_STR-USERPWD sy-vline 
WA_PIQ_US_ITEMNCAA_STR-MIDDLE_NAME sy-vline 
WA_PIQ_US_ITEMNCAA_STR-NCAA_DOB sy-vline 
WA_PIQ_US_ITEMNCAA_STR-SPORTCODE_AWARD sy-vline 
WA_PIQ_US_ITEMNCAA_STR-CHANGEDATE sy-vline 
WA_PIQ_US_ITEMNCAA_STR-CHANGESTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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