ABAP Select data from SAP table CVIS_EI_FAX_STR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CVIS_EI_FAX_STR
*  INTO TABLE @DATA(IT_CVIS_EI_FAX_STR2).
*--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_CVIS_EI_FAX_STR INDEX 1 INTO DATA(WA_CVIS_EI_FAX_STR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CVIS_EI_FAX_STR>-CONTACT = 1.
<CVIS_EI_FAX_STR>-TASK = 1.
<CVIS_EI_FAX_STR>-DATA = 1.
<CVIS_EI_FAX_STR>-COUNTRY = 1.
<CVIS_EI_FAX_STR>-COUNTRYISO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CVIS_EI_FAX_STR-STD_NO, sy-vline,
  WA_CVIS_EI_FAX_STR-FAX, sy-vline,
  WA_CVIS_EI_FAX_STR-EXTENSION, sy-vline,
  WA_CVIS_EI_FAX_STR-FAX_NO, sy-vline,
  WA_CVIS_EI_FAX_STR-SENDER_NO, sy-vline,
  WA_CVIS_EI_FAX_STR-FAX_GROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CVIS_EI_FAX_STR 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_CVIS_EI_FAX_STR 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_CVIS_EI_FAX_STR INTO WA_CVIS_EI_FAX_STR.


*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_CVIS_EI_FAX_STR_STR, 
CONTACT TYPE STRING,
TASK TYPE STRING,
DATA TYPE STRING,
COUNTRY TYPE STRING,
COUNTRYISO TYPE STRING,
STD_NO TYPE STRING,
FAX TYPE STRING,
EXTENSION TYPE STRING,
FAX_NO TYPE STRING,
SENDER_NO TYPE STRING,
FAX_GROUP TYPE STRING,
STD_RECIP TYPE STRING,
R_3_USER TYPE STRING,
HOME_FLAG TYPE STRING,
CONSNUMBER TYPE STRING,
ERRORFLAG TYPE STRING,
FLG_NOUSE TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
DATAX TYPE STRING,
COUNTRY TYPE STRING,
COUNTRYISO TYPE STRING,
STD_NO TYPE STRING,
FAX TYPE STRING,
EXTENSION TYPE STRING,
FAX_NO TYPE STRING,
SENDER_NO TYPE STRING,
FAX_GROUP TYPE STRING,
STD_RECIP TYPE STRING,
R_3_USER TYPE STRING,
HOME_FLAG TYPE STRING,
CONSNUMBER TYPE STRING,
UPDATEFLAG TYPE STRING,
FLG_NOUSE TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
REMARK TYPE STRING,
CURRENT_STATE TYPE STRING,
REMARKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CVIS_EI_FAX_STR_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_CVIS_EI_FAX_STR_STR-CONTACT sy-vline 
WA_CVIS_EI_FAX_STR_STR-TASK sy-vline 
WA_CVIS_EI_FAX_STR_STR-DATA sy-vline 
WA_CVIS_EI_FAX_STR_STR-COUNTRY sy-vline 
WA_CVIS_EI_FAX_STR_STR-COUNTRYISO sy-vline 
WA_CVIS_EI_FAX_STR_STR-STD_NO sy-vline 
WA_CVIS_EI_FAX_STR_STR-FAX sy-vline 
WA_CVIS_EI_FAX_STR_STR-EXTENSION sy-vline 
WA_CVIS_EI_FAX_STR_STR-FAX_NO sy-vline 
WA_CVIS_EI_FAX_STR_STR-SENDER_NO sy-vline 
WA_CVIS_EI_FAX_STR_STR-FAX_GROUP sy-vline 
WA_CVIS_EI_FAX_STR_STR-STD_RECIP sy-vline 
WA_CVIS_EI_FAX_STR_STR-R_3_USER sy-vline 
WA_CVIS_EI_FAX_STR_STR-HOME_FLAG sy-vline 
WA_CVIS_EI_FAX_STR_STR-CONSNUMBER sy-vline 
WA_CVIS_EI_FAX_STR_STR-ERRORFLAG sy-vline 
WA_CVIS_EI_FAX_STR_STR-FLG_NOUSE sy-vline 
WA_CVIS_EI_FAX_STR_STR-VALID_FROM sy-vline 
WA_CVIS_EI_FAX_STR_STR-VALID_TO sy-vline 
WA_CVIS_EI_FAX_STR_STR-DATAX sy-vline 
WA_CVIS_EI_FAX_STR_STR-COUNTRY sy-vline 
WA_CVIS_EI_FAX_STR_STR-COUNTRYISO sy-vline 
WA_CVIS_EI_FAX_STR_STR-STD_NO sy-vline 
WA_CVIS_EI_FAX_STR_STR-FAX sy-vline 
WA_CVIS_EI_FAX_STR_STR-EXTENSION sy-vline 
WA_CVIS_EI_FAX_STR_STR-FAX_NO sy-vline 
WA_CVIS_EI_FAX_STR_STR-SENDER_NO sy-vline 
WA_CVIS_EI_FAX_STR_STR-FAX_GROUP sy-vline 
WA_CVIS_EI_FAX_STR_STR-STD_RECIP sy-vline 
WA_CVIS_EI_FAX_STR_STR-R_3_USER sy-vline 
WA_CVIS_EI_FAX_STR_STR-HOME_FLAG sy-vline 
WA_CVIS_EI_FAX_STR_STR-CONSNUMBER sy-vline 
WA_CVIS_EI_FAX_STR_STR-UPDATEFLAG sy-vline 
WA_CVIS_EI_FAX_STR_STR-FLG_NOUSE sy-vline 
WA_CVIS_EI_FAX_STR_STR-VALID_FROM sy-vline 
WA_CVIS_EI_FAX_STR_STR-VALID_TO sy-vline 
WA_CVIS_EI_FAX_STR_STR-REMARK sy-vline 
WA_CVIS_EI_FAX_STR_STR-CURRENT_STATE sy-vline 
WA_CVIS_EI_FAX_STR_STR-REMARKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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