ABAP Select data from SAP table CEHSCREQEXTUPD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEHSCREQEXTUPD
*  INTO TABLE @DATA(IT_CEHSCREQEXTUPD2).
*--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_CEHSCREQEXTUPD INDEX 1 INTO DATA(WA_CEHSCREQEXTUPD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEHSCREQEXTUPD>-MANDT = 1.
<CEHSCREQEXTUPD>-EHSEXTCMPLRQUUID = 1.
<CEHSCREQEXTUPD>-EHSEXTCMPLRQNAME = 1.
<CEHSCREQEXTUPD>-EHSEXTCMPLRQDESCRIPTION = 1.
<CEHSCREQEXTUPD>-EHSEXTCMPLRQDOCLINK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEHSCREQEXTUPD-EHSEXTCMPLRQTITLETIP, sy-vline,
  WA_CEHSCREQEXTUPD-EHSEXTCMPLRQTITLE, sy-vline,
  WA_CEHSCREQEXTUPD-EHSEXTCMPLRQBREADCRUMBS, sy-vline,
  WA_CEHSCREQEXTUPD-EHSEXTCMPLRQAMENDMENTDATE, sy-vline,
  WA_CEHSCREQEXTUPD-EHSEXTCMPLRQREGION, sy-vline,
  WA_CEHSCREQEXTUPD-EHSEXTCMPLRQGEOGRAPHYCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEHSCREQEXTUPD 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_CEHSCREQEXTUPD 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_CEHSCREQEXTUPD INTO WA_CEHSCREQEXTUPD.


*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_CEHSCREQEXTUPD_STR, 
MANDT TYPE STRING,
EHSEXTCMPLRQUUID TYPE STRING,
EHSEXTCMPLRQNAME TYPE STRING,
EHSEXTCMPLRQDESCRIPTION TYPE STRING,
EHSEXTCMPLRQDOCLINK TYPE STRING,
EHSEXTCMPLRQTITLETIP TYPE STRING,
EHSEXTCMPLRQTITLE TYPE STRING,
EHSEXTCMPLRQBREADCRUMBS TYPE STRING,
EHSEXTCMPLRQAMENDMENTDATE TYPE STRING,
EHSEXTCMPLRQREGION TYPE STRING,
EHSEXTCMPLRQGEOGRAPHYCODE TYPE STRING,
EHSEXTCMPLRQSTRIKEURL TYPE STRING,
EHSEXTCMPLRQIMPORTSTATUS TYPE STRING,
EHSEXTCMPLRQCITATIONCNT TYPE STRING,
EHSEXTCMPLRQRQMTSCNT TYPE STRING,
CMPLRQVERSUUID TYPE STRING,
CMPLRQVERSNAME TYPE STRING,
CMPLRQVERSMAINTSTATUS TYPE STRING,
CMPLRQVERSBUILDDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEHSCREQEXTUPD_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_CEHSCREQEXTUPD_STR-MANDT sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQUUID sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQNAME sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQDESCRIPTION sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQDOCLINK sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQTITLETIP sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQTITLE sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQBREADCRUMBS sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQAMENDMENTDATE sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQREGION sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQGEOGRAPHYCODE sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQSTRIKEURL sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQIMPORTSTATUS sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQCITATIONCNT sy-vline 
WA_CEHSCREQEXTUPD_STR-EHSEXTCMPLRQRQMTSCNT sy-vline 
WA_CEHSCREQEXTUPD_STR-CMPLRQVERSUUID sy-vline 
WA_CEHSCREQEXTUPD_STR-CMPLRQVERSNAME sy-vline 
WA_CEHSCREQEXTUPD_STR-CMPLRQVERSMAINTSTATUS sy-vline 
WA_CEHSCREQEXTUPD_STR-CMPLRQVERSBUILDDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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