ABAP Select data from SAP table PIQDB_DE_DRSTATD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQDB_DE_DRSTATD
*  INTO TABLE @DATA(IT_PIQDB_DE_DRSTATD2).
*--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_PIQDB_DE_DRSTATD INDEX 1 INTO DATA(WA_PIQDB_DE_DRSTATD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQDB_DE_DRSTATD>-MANDT = 1.
<PIQDB_DE_DRSTATD>-RUNID = 1.
<PIQDB_DE_DRSTATD>-ST_OBJID = 1.
<PIQDB_DE_DRSTATD>-STUDENT = 1.
<PIQDB_DE_DRSTATD>-CS_OBJID_RD1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQDB_DE_DRSTATD-CS_OBJID_G1, sy-vline,
  WA_PIQDB_DE_DRSTATD-CORR_RUN_TMSTP, sy-vline,
  WA_PIQDB_DE_DRSTATD-REP_REGIO, sy-vline,
  WA_PIQDB_DE_DRSTATD-REP_YEAR, sy-vline,
  WA_PIQDB_DE_DRSTATD-REP_HEI, sy-vline,
  WA_PIQDB_DE_DRSTATD-RECNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQDB_DE_DRSTATD 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_PIQDB_DE_DRSTATD 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_PIQDB_DE_DRSTATD INTO WA_PIQDB_DE_DRSTATD.


*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 PIQST, internal->external for field STUDENT
CALL FUNCTION 'CONVERSION_EXIT_PIQST_OUTPUT'
  EXPORTING
    input =                      WA_PIQDB_DE_DRSTATD-STUDENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQDB_DE_DRSTATD-STUDENT.
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_PIQDB_DE_DRSTATD_STR, 
MANDT TYPE STRING,
RUNID TYPE STRING,
ST_OBJID TYPE STRING,
STUDENT TYPE STRING,
CS_OBJID_RD1 TYPE STRING,
CS_OBJID_G1 TYPE STRING,
CORR_RUN_TMSTP TYPE STRING,
REP_REGIO TYPE STRING,
REP_YEAR TYPE STRING,
REP_HEI TYPE STRING,
RECNUM TYPE STRING,
GENDER_KEY TYPE STRING,
BIRTH_DAY TYPE STRING,
BIRTH_MONTH TYPE STRING,
BIRTH_YEAR TYPE STRING,
STUDENT_NAME TYPE STRING,
NATIONALITY TYPE STRING,
NATIONALITY_SECOND TYPE STRING,
PHD_PROG_TYPE TYPE STRING,
PHD_SUBJECT1 TYPE STRING,
PHD_REGTYPE TYPE STRING,
PHD_BEG_MONTH TYPE STRING,
PHD_BEG_YEAR TYPE STRING,
PHD_END_MONTH TYPE STRING,
PHD_END_YEAR TYPE STRING,
ACTIVE_REGIST_IND TYPE STRING,
STRUC_PROGRAM_IND TYPE STRING,
EMPLOYEE_IND TYPE STRING,
THESIS_TYPE TYPE STRING,
FIRST_HEI TYPE STRING,
FIRST_HEI_COUNTRY TYPE STRING,
FIRST_PERID TYPE STRING,
FIRST_YEAR TYPE STRING,
QUAL_EXAM_RESULT TYPE STRING,
QUAL_EXAM_HEI TYPE STRING,
QUAL_EXAM_COUNTRY TYPE STRING,
QUAL_EXAM_TGT_DEGREE TYPE STRING,
QUAL_EXAM_SUBJECT1 TYPE STRING,
QUAL_EXAM_MONTH TYPE STRING,
QUAL_EXAM_YEAR TYPE STRING,
QUAL_EXAM_GRADE TYPE STRING,
UEQ_YEAR TYPE STRING,
UEQ_TYPE TYPE STRING,
UEQ_REGIO TYPE STRING,
UEQ_COUNTY TYPE STRING,
UEQ_COUNTRY TYPE STRING,
STALA_34 TYPE STRING,
STALA_35 TYPE STRING,
STALA_36 TYPE STRING,
STALA_37 TYPE STRING,
STALA_38 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQDB_DE_DRSTATD_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_PIQDB_DE_DRSTATD_STR-MANDT sy-vline 
WA_PIQDB_DE_DRSTATD_STR-RUNID sy-vline 
WA_PIQDB_DE_DRSTATD_STR-ST_OBJID sy-vline 
WA_PIQDB_DE_DRSTATD_STR-STUDENT sy-vline 
WA_PIQDB_DE_DRSTATD_STR-CS_OBJID_RD1 sy-vline 
WA_PIQDB_DE_DRSTATD_STR-CS_OBJID_G1 sy-vline 
WA_PIQDB_DE_DRSTATD_STR-CORR_RUN_TMSTP sy-vline 
WA_PIQDB_DE_DRSTATD_STR-REP_REGIO sy-vline 
WA_PIQDB_DE_DRSTATD_STR-REP_YEAR sy-vline 
WA_PIQDB_DE_DRSTATD_STR-REP_HEI sy-vline 
WA_PIQDB_DE_DRSTATD_STR-RECNUM sy-vline 
WA_PIQDB_DE_DRSTATD_STR-GENDER_KEY sy-vline 
WA_PIQDB_DE_DRSTATD_STR-BIRTH_DAY sy-vline 
WA_PIQDB_DE_DRSTATD_STR-BIRTH_MONTH sy-vline 
WA_PIQDB_DE_DRSTATD_STR-BIRTH_YEAR sy-vline 
WA_PIQDB_DE_DRSTATD_STR-STUDENT_NAME sy-vline 
WA_PIQDB_DE_DRSTATD_STR-NATIONALITY sy-vline 
WA_PIQDB_DE_DRSTATD_STR-NATIONALITY_SECOND sy-vline 
WA_PIQDB_DE_DRSTATD_STR-PHD_PROG_TYPE sy-vline 
WA_PIQDB_DE_DRSTATD_STR-PHD_SUBJECT1 sy-vline 
WA_PIQDB_DE_DRSTATD_STR-PHD_REGTYPE sy-vline 
WA_PIQDB_DE_DRSTATD_STR-PHD_BEG_MONTH sy-vline 
WA_PIQDB_DE_DRSTATD_STR-PHD_BEG_YEAR sy-vline 
WA_PIQDB_DE_DRSTATD_STR-PHD_END_MONTH sy-vline 
WA_PIQDB_DE_DRSTATD_STR-PHD_END_YEAR sy-vline 
WA_PIQDB_DE_DRSTATD_STR-ACTIVE_REGIST_IND sy-vline 
WA_PIQDB_DE_DRSTATD_STR-STRUC_PROGRAM_IND sy-vline 
WA_PIQDB_DE_DRSTATD_STR-EMPLOYEE_IND sy-vline 
WA_PIQDB_DE_DRSTATD_STR-THESIS_TYPE sy-vline 
WA_PIQDB_DE_DRSTATD_STR-FIRST_HEI sy-vline 
WA_PIQDB_DE_DRSTATD_STR-FIRST_HEI_COUNTRY sy-vline 
WA_PIQDB_DE_DRSTATD_STR-FIRST_PERID sy-vline 
WA_PIQDB_DE_DRSTATD_STR-FIRST_YEAR sy-vline 
WA_PIQDB_DE_DRSTATD_STR-QUAL_EXAM_RESULT sy-vline 
WA_PIQDB_DE_DRSTATD_STR-QUAL_EXAM_HEI sy-vline 
WA_PIQDB_DE_DRSTATD_STR-QUAL_EXAM_COUNTRY sy-vline 
WA_PIQDB_DE_DRSTATD_STR-QUAL_EXAM_TGT_DEGREE sy-vline 
WA_PIQDB_DE_DRSTATD_STR-QUAL_EXAM_SUBJECT1 sy-vline 
WA_PIQDB_DE_DRSTATD_STR-QUAL_EXAM_MONTH sy-vline 
WA_PIQDB_DE_DRSTATD_STR-QUAL_EXAM_YEAR sy-vline 
WA_PIQDB_DE_DRSTATD_STR-QUAL_EXAM_GRADE sy-vline 
WA_PIQDB_DE_DRSTATD_STR-UEQ_YEAR sy-vline 
WA_PIQDB_DE_DRSTATD_STR-UEQ_TYPE sy-vline 
WA_PIQDB_DE_DRSTATD_STR-UEQ_REGIO sy-vline 
WA_PIQDB_DE_DRSTATD_STR-UEQ_COUNTY sy-vline 
WA_PIQDB_DE_DRSTATD_STR-UEQ_COUNTRY sy-vline 
WA_PIQDB_DE_DRSTATD_STR-STALA_34 sy-vline 
WA_PIQDB_DE_DRSTATD_STR-STALA_35 sy-vline 
WA_PIQDB_DE_DRSTATD_STR-STALA_36 sy-vline 
WA_PIQDB_DE_DRSTATD_STR-STALA_37 sy-vline 
WA_PIQDB_DE_DRSTATD_STR-STALA_38 sy-vline      INTO ld_text SEPARATED BY SPACE.

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