ABAP Select data from SAP table PIQ_US_TOEFL_REC 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_TOEFL_REC 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_TOEFL_REC. 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_TOEFL_REC 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_TOEFL_REC TYPE STANDARD TABLE OF PIQ_US_TOEFL_REC,
      WA_PIQ_US_TOEFL_REC TYPE PIQ_US_TOEFL_REC,
      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_TOEFL_REC> TYPE PIQ_US_TOEFL_REC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQ_US_TOEFL_REC
*  INTO TABLE @DATA(IT_PIQ_US_TOEFL_REC2).
*--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_TOEFL_REC INDEX 1 INTO DATA(WA_PIQ_US_TOEFL_REC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQ_US_TOEFL_REC>-DI_CODE = 1.
<PIQ_US_TOEFL_REC>-BLANK1 = 1.
<PIQ_US_TOEFL_REC>-DEPT_CODE = 1.
<PIQ_US_TOEFL_REC>-BLANK2 = 1.
<PIQ_US_TOEFL_REC>-APTT_NUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQ_US_TOEFL_REC-EXAMINEE_LNAME, sy-vline,
  WA_PIQ_US_TOEFL_REC-EXAMINEE_FNAME, sy-vline,
  WA_PIQ_US_TOEFL_REC-EXAMINEE_MNAME, sy-vline,
  WA_PIQ_US_TOEFL_REC-ADDR_LINE_1, sy-vline,
  WA_PIQ_US_TOEFL_REC-ADDR_LINE_2, sy-vline,
  WA_PIQ_US_TOEFL_REC-ADDR_LINE_3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQ_US_TOEFL_REC 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_TOEFL_REC 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_TOEFL_REC INTO WA_PIQ_US_TOEFL_REC.


*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_TOEFL_REC_STR, 
DI_CODE TYPE STRING,
BLANK1 TYPE STRING,
DEPT_CODE TYPE STRING,
BLANK2 TYPE STRING,
APTT_NUMBER TYPE STRING,
EXAMINEE_LNAME TYPE STRING,
EXAMINEE_FNAME TYPE STRING,
EXAMINEE_MNAME TYPE STRING,
ADDR_LINE_1 TYPE STRING,
ADDR_LINE_2 TYPE STRING,
ADDR_LINE_3 TYPE STRING,
ADDR_LINE_4 TYPE STRING,
ADDR_CITY TYPE STRING,
ADDR_STATE TYPE STRING,
ADDR_CTRY_CODE TYPE STRING,
ADDR_CTRY_NAME TYPE STRING,
ADDR_ZCODE TYPE STRING,
NTV_CTRY_CODE TYPE STRING,
NTV_CTRY_NAME TYPE STRING,
NTV_LANG_CODE TYPE STRING,
NTV_LANG_NAME TYPE STRING,
DOB TYPE STRING,
GENDER TYPE STRING,
ADMIN_DATE TYPE STRING,
TEST_CENTER TYPE STRING,
BLANK3 TYPE STRING,
TESTTYPE TYPE STRING,
LISTEN_IND TYPE STRING,
SPK_IND TYPE STRING,
IBT_LIS_SCR TYPE STRING,
IBT_RDG_SCR TYPE STRING,
IBT_SPK_SCR TYPE STRING,
IBT_WRI_SCR TYPE STRING,
IBT_TTL_SCR TYPE STRING,
TSE_SCR TYPE STRING,
REASON_TOEFL TYPE STRING,
DEGREE TYPE STRING,
SECT1_SCORE TYPE STRING,
SECT2_SCORE TYPE STRING,
SECT3_SCORE TYPE STRING,
ESSAY_SCORE TYPE STRING,
TOTAL_SCORE TYPE STRING,
INFO_YEAR TYPE STRING,
ATTEMPTS TYPE STRING,
RESP_OFF_TOPIC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQ_US_TOEFL_REC_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_TOEFL_REC_STR-DI_CODE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-BLANK1 sy-vline 
WA_PIQ_US_TOEFL_REC_STR-DEPT_CODE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-BLANK2 sy-vline 
WA_PIQ_US_TOEFL_REC_STR-APTT_NUMBER sy-vline 
WA_PIQ_US_TOEFL_REC_STR-EXAMINEE_LNAME sy-vline 
WA_PIQ_US_TOEFL_REC_STR-EXAMINEE_FNAME sy-vline 
WA_PIQ_US_TOEFL_REC_STR-EXAMINEE_MNAME sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ADDR_LINE_1 sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ADDR_LINE_2 sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ADDR_LINE_3 sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ADDR_LINE_4 sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ADDR_CITY sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ADDR_STATE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ADDR_CTRY_CODE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ADDR_CTRY_NAME sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ADDR_ZCODE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-NTV_CTRY_CODE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-NTV_CTRY_NAME sy-vline 
WA_PIQ_US_TOEFL_REC_STR-NTV_LANG_CODE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-NTV_LANG_NAME sy-vline 
WA_PIQ_US_TOEFL_REC_STR-DOB sy-vline 
WA_PIQ_US_TOEFL_REC_STR-GENDER sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ADMIN_DATE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-TEST_CENTER sy-vline 
WA_PIQ_US_TOEFL_REC_STR-BLANK3 sy-vline 
WA_PIQ_US_TOEFL_REC_STR-TESTTYPE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-LISTEN_IND sy-vline 
WA_PIQ_US_TOEFL_REC_STR-SPK_IND sy-vline 
WA_PIQ_US_TOEFL_REC_STR-IBT_LIS_SCR sy-vline 
WA_PIQ_US_TOEFL_REC_STR-IBT_RDG_SCR sy-vline 
WA_PIQ_US_TOEFL_REC_STR-IBT_SPK_SCR sy-vline 
WA_PIQ_US_TOEFL_REC_STR-IBT_WRI_SCR sy-vline 
WA_PIQ_US_TOEFL_REC_STR-IBT_TTL_SCR sy-vline 
WA_PIQ_US_TOEFL_REC_STR-TSE_SCR sy-vline 
WA_PIQ_US_TOEFL_REC_STR-REASON_TOEFL sy-vline 
WA_PIQ_US_TOEFL_REC_STR-DEGREE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-SECT1_SCORE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-SECT2_SCORE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-SECT3_SCORE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ESSAY_SCORE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-TOTAL_SCORE sy-vline 
WA_PIQ_US_TOEFL_REC_STR-INFO_YEAR sy-vline 
WA_PIQ_US_TOEFL_REC_STR-ATTEMPTS sy-vline 
WA_PIQ_US_TOEFL_REC_STR-RESP_OFF_TOPIC sy-vline      INTO ld_text SEPARATED BY SPACE.

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