Beginner's Question on Inserting a BLOB with JDBC

Question

What is the easiest way to accept a file from a user and insert it into a BLOB field in a database?
If it makes a difference - I'm using DB2 and DB2's JDBC driver
But I would like to know the simpliest solution (maybe even using the JDBC-ODBC bridge)
-Michael

Answer 1

Hi Michael,
with DB2's JDBC driver it is pretty easy:
You use a prepared statement and the method setBinaryStream or setBytes:
PreparedStatement pstmt = con.prepareStatement("UPDATE myTable SET blobColumn = ? WHERE ID = ?");
FileInputStream in = new FileInputStream(...) ;
pstmt.setBinaryStream(1, in, in.available()) ;
pstmt.setInt(2, id) ;
pstmt.execute() ; Or you read the file first into an array of bytes and put it in the database with pstmt.setBytes(...)
Yannick