On 8 Jun 2010, at 9:02pm, Scott Frankel wrote: > On Jun 8, 2010, at 12:51 PM, Jean-Christophe Deschamps wrote: > >>> What's the best way to copy data from one db to another? >>> >>> Given 2 databases with identical schemas, one full of data and the >>> other empty, the brute force way would be to perform selects on the >>> source db, then for each row, perform an insert into the destination >>> db. Is there a more efficient way? >> >> The easiest is either to simply copy the file as Igor suggested or use >> the backup API (very easy too). > > I forgot to mention, the source is a PostgreSQL db, not SQLite, so > there's no source file to copy.
Then you have to use the functions of one library to read your data and the functions of another to write your data. There's no way to do it inside one SQL command since the SQLite library can't read a PostgreSQL database and the PostgreSQL library can't write a SQLite database. Either write a program to read record-by-record and write record-by-record, or use PostgreSQL functions to write to SQL commands then execute those commands to create a new SQLite database. Simon. _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
