Convert ITAB to XSTRING and back - string

Question

I need to save an itab as an xstring or something like this and save it in dbtab.
Later I need to gather this xstring from dbtab and convert it in the itab before with exactly the same input from before.
I tried a lot of fuba´s like:
SCMS_STRING_TO_XSTRING or SCMS_XSTRING_TO_BINARY but I didn´t find something to convert it back.
Does somebody have tried something like this before and have some samples for me ?
Unfortunately I didn´t find something on other blogs or else.

Answer 1

An easy solution to convert into an xstring:
CALL TRANSFORMATION id SOURCE root = it_table RESULT XML DATA(lv_xstring).
Back would be like:
CALL TRANSFORMATION id SOURCE XML lv_xstring RESULT root = it_table.
For more information, see the ABAP documentation about data serialization and deserialization by using the XSL Identity Transformation.

Answer 2

use
import ... from data buffer
and
export ... to data buffer
to (re)store any variable as xstring.
Or you can use
import|export ... from|to database ...

Answer 3

I did some methods to do this:
First I loop at the table and concatenate it into a string.
Then convert the string into an xstring.
LOOP AT IT_TABLE ASSIGNING FIELD-SYMBOL(<LS_TABLE>).
CONCATENATE LV_STRING <LS_TABLE> INTO LV_STRING SEPARATED BY CL_ABAP_CHAR_UTILITIES=>NEWLINE.
ENDLOOP.
CALL FUNCTION 'SCMS_STRING_TO_XSTRING'
EXPORTING
TEXT = IV_STRING
IMPORTING
BUFFER = LV_XSTRING.
Back would be like:
Convert xstring back to string
String into table
TRY.
CL_BCS_CONVERT=>XSTRING_TO_STRING(
EXPORTING
IV_XSTR = IV_XSTRING
IV_CP = 1100 " SAP character set identification
RECEIVING
RV_STRING = LV_STRING
).
CATCH CX_BCS.
ENDTRY.
SPLIT IV_STRING AT CL_ABAP_CHAR_UTILITIES=>NEWLINE INTO: TABLE <LT_TABLE> .
READ TABLE <LT_TABLE> ASSIGNING FIELD-SYMBOL(<LS_TABLE>) INDEX 1.
IF <LS_TABLE> IS INITIAL.
DELETE TABLE <LT_TABLE> FROM <LS_TABLE>.
ENDIF.