Name
blob_to_string_output — Convert a blob to string session
Synopsis
varchar
blob_to_string_output
(
|
in
blob
any
); |
Description
Although primarily used for converting
blobs
(
long varbinary
,
long varchar
) to string output object
,
blob_to_string_output
may also be used to convert from
wide string
, persistent XML (XPER)
and
string_output streams
.
Parameters
blob
blob handle (long varbinary or long varchar), string_output or XPER (persistent XML)
Return types
string output object
contents of
blob
.
Errors
Table 24.7. Errors signalled by
| SQLState | Error Code | Error Text | Description |
|---|---|---|---|
| 22023 | SR068 | XML tree cannot be used as argument of blob_to_string_output | |
| 22023 | SR070 | blob_to_string_output requires a blob or string argument | |
| 22023 | SR071 | Blob argument to blob_to_string_output must be a non-interactive blob |
Examples
Example 24.29. Various conversions
SQL> use Demo;
Done. -- 20 msec.
SQL> select string_output_string (blob_to_string_output ("Description")) from "Categories";
callret
VARCHAR
_______________________________________________________________________________
Soft drinks, coffees, teas, beers, and ales
Sweet and savory sauces, relishes, spreads, and seasonings
Desserts, candies, and sweet breads
Cheeses
Breads, crackers, pasta, and cereal
Prepared meats
Dried fruit and bean curd
Seaweed and fish
8 Rows. -- 37 msec.
SQL>