fanlijing wrote: > In Fact, I'm doing a porting project from Oracle 10g to PostgreSQL 9.0.4 > > There is a procedure in Oracle 10g to write a blob value into a file using: [...] > I know PostgreSQL doesn't support procedure, so I want to porting it into a > function use LANGUAGE plpgsql. > So I must find some APIs supported by plpgsql to write a bytea value into a > file (e.g. write into a file in RedHat) > > ★ Are there any APIs like "UTL_FILE.FOPEN... DBMS_LOB.READ... > UTL_FILE.PUT_RAW..." of Oracle dealing with writing binary objects into a > file in PostgreSQL? If there isn't anyone, Maybe I should think about other > language(e.g. Perl, Java) to realize it. There are functions to read files: http://www.postgresql.org/docs/current/static/functions-admin.html#FUNCTIONS-ADMIN-GENFILE The Contrib-Module "adminpack" contains a function "pg_file_write" that can be used to write files. But you don't need those for what you want to do. A simple COPY (SELECT byteacol WROM mytab WHERE ...) TO 'filename' (FORMAT binary) should do the trick. For all that you need superuser privileges. Yours, Laurenz Albe -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
