ABAP Select data from SAP table CPECTXHISTORY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPECTXHISTORY
*  INTO TABLE @DATA(IT_CPECTXHISTORY2).
*--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_CPECTXHISTORY INDEX 1 INTO DATA(WA_CPECTXHISTORY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPECTXHISTORY>-MANDT = 1.
<CPECTXHISTORY>-PCECTXPRPTYUUID = 1.
<CPECTXHISTORY>-ACTIVEPCECTXPRPTYUUID = 1.
<CPECTXHISTORY>-SUBSTANCEUUID = 1.
<CPECTXHISTORY>-CHMLCMPLNCINFOUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPECTXHISTORY-PCPRPTYPROCGSTS, sy-vline,
  WA_CPECTXHISTORY-PCPRPTYPROCGSTSTEXT, sy-vline,
  WA_CPECTXHISTORY-RELEASEDBYUSER, sy-vline,
  WA_CPECTXHISTORY-RELEASEDBYUSERNAME, sy-vline,
  WA_CPECTXHISTORY-VALIDITYSTARTDATETIME, sy-vline,
  WA_CPECTXHISTORY-VALIDITYENDDATETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPECTXHISTORY 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_CPECTXHISTORY 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_CPECTXHISTORY INTO WA_CPECTXHISTORY.


*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 ALPHA, internal->external for field RELEASEDBYUSER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPECTXHISTORY-RELEASEDBYUSER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPECTXHISTORY-RELEASEDBYUSER.
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_CPECTXHISTORY_STR, 
MANDT TYPE STRING,
PCECTXPRPTYUUID TYPE STRING,
ACTIVEPCECTXPRPTYUUID TYPE STRING,
SUBSTANCEUUID TYPE STRING,
CHMLCMPLNCINFOUUID TYPE STRING,
PCPRPTYPROCGSTS TYPE STRING,
PCPRPTYPROCGSTSTEXT TYPE STRING,
RELEASEDBYUSER TYPE STRING,
RELEASEDBYUSERNAME TYPE STRING,
VALIDITYSTARTDATETIME TYPE STRING,
VALIDITYENDDATETIME TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDBYUSERFULLNAME TYPE STRING,
PCPRPTYNAVGNLINKUUID TYPE STRING,
PCECTXPRPTYISACTIVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPECTXHISTORY_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_CPECTXHISTORY_STR-MANDT sy-vline 
WA_CPECTXHISTORY_STR-PCECTXPRPTYUUID sy-vline 
WA_CPECTXHISTORY_STR-ACTIVEPCECTXPRPTYUUID sy-vline 
WA_CPECTXHISTORY_STR-SUBSTANCEUUID sy-vline 
WA_CPECTXHISTORY_STR-CHMLCMPLNCINFOUUID sy-vline 
WA_CPECTXHISTORY_STR-PCPRPTYPROCGSTS sy-vline 
WA_CPECTXHISTORY_STR-PCPRPTYPROCGSTSTEXT sy-vline 
WA_CPECTXHISTORY_STR-RELEASEDBYUSER sy-vline 
WA_CPECTXHISTORY_STR-RELEASEDBYUSERNAME sy-vline 
WA_CPECTXHISTORY_STR-VALIDITYSTARTDATETIME sy-vline 
WA_CPECTXHISTORY_STR-VALIDITYENDDATETIME sy-vline 
WA_CPECTXHISTORY_STR-LASTCHANGEDATETIME sy-vline 
WA_CPECTXHISTORY_STR-LASTCHANGEDBYUSER sy-vline 
WA_CPECTXHISTORY_STR-LASTCHANGEDBYUSERFULLNAME sy-vline 
WA_CPECTXHISTORY_STR-PCPRPTYNAVGNLINKUUID sy-vline 
WA_CPECTXHISTORY_STR-PCECTXPRPTYISACTIVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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