ABAP Select data from SAP table ISPCTXACUTEORALTOXTYSTUDYTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISPCTXACUTEORALTOXTYSTUDYTP
*  INTO TABLE @DATA(IT_ISPCTXACUTEORALTOXTYSTUDYTP2).
*--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_ISPCTXACUTEORALTOXTYSTUDYTP INDEX 1 INTO DATA(WA_ISPCTXACUTEORALTOXTYSTUDYTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISPCTXACUTEORALTOXTYSTUDYTP>-KEY = 1.
<ISPCTXACUTEORALTOXTYSTUDYTP>-PARENT_KEY = 1.
<ISPCTXACUTEORALTOXTYSTUDYTP>-ROOT_KEY = 1.
<ISPCTXACUTEORALTOXTYSTUDYTP>-PCTXACUTEORALSPECIESPHRSUUID = 1.
<ISPCTXACUTEORALTOXTYSTUDYTP>-PCTXSEXPHRSUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISPCTXACUTEORALTOXTYSTUDYTP-PCTXACUTEORALTYPEPHRSUUID, sy-vline,
  WA_ISPCTXACUTEORALTOXTYSTUDYTP-PCTXVALUELOWRQTY, sy-vline,
  WA_ISPCTXACUTEORALTOXTYSTUDYTP-PCTXVALUELOWRQTYTXT, sy-vline,
  WA_ISPCTXACUTEORALTOXTYSTUDYTP-PCTXVALUELOWRQTYOPTR, sy-vline,
  WA_ISPCTXACUTEORALTOXTYSTUDYTP-PCTXVALUEUPRQTY, sy-vline,
  WA_ISPCTXACUTEORALTOXTYSTUDYTP-PCTXVALUEUPRQTYTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISPCTXACUTEORALTOXTYSTUDYTP 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_ISPCTXACUTEORALTOXTYSTUDYTP 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_ISPCTXACUTEORALTOXTYSTUDYTP INTO WA_ISPCTXACUTEORALTOXTYSTUDYTP.


*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 PCTXVALUEUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISPCTXACUTEORALTOXTYSTUDYTP-PCTXVALUEUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPCTXACUTEORALTOXTYSTUDYTP-PCTXVALUEUOM.
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_ISPCTXACUTEORALTOXTYSTUDYTP_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
PCTXACUTEORALSPECIESPHRSUUID TYPE STRING,
PCTXSEXPHRSUUID TYPE STRING,
PCTXACUTEORALTYPEPHRSUUID TYPE STRING,
PCTXVALUELOWRQTY TYPE STRING,
PCTXVALUELOWRQTYTXT TYPE STRING,
PCTXVALUELOWRQTYOPTR TYPE STRING,
PCTXVALUEUPRQTY TYPE STRING,
PCTXVALUEUPRQTYTXT TYPE STRING,
PCTXVALUEUPRQTYOPTR TYPE STRING,
PCTXVALUEUOM TYPE STRING,
PCTXACUTEORALMETHODPHRSUUID TYPE STRING,
PCTXACUTEORALADDLSTMNTUUID TYPE STRING,
PCPRPTYRATING TYPE STRING,
PCTXNOTETEXT TYPE STRING,
CREATIONUTCDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEUTCDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
ACTIVEUUID TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISPCTXACUTEORALTOXTYSTUDYTP_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_ISPCTXACUTEORALTOXTYSTUDYTP_STR-KEY sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PARENT_KEY sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-ROOT_KEY sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXACUTEORALSPECIESPHRSUUID sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXSEXPHRSUUID sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXACUTEORALTYPEPHRSUUID sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXVALUELOWRQTY sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXVALUELOWRQTYTXT sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXVALUELOWRQTYOPTR sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXVALUEUPRQTY sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXVALUEUPRQTYTXT sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXVALUEUPRQTYOPTR sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXVALUEUOM sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXACUTEORALMETHODPHRSUUID sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXACUTEORALADDLSTMNTUUID sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCPRPTYRATING sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-PCTXNOTETEXT sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-CREATIONUTCDATETIME sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-CREATEDBYUSER sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-LASTCHANGEUTCDATETIME sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-LASTCHANGEDBYUSER sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-ACTIVEUUID sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-HASACTIVEENTITY sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISPCTXACUTEORALTOXTYSTUDYTP_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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