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How to retrieve temporary BLOB value from PLSQL to Java?

I am trying to pass a temporary BLOB that I've created in Java, to a
PLSQL function that modifies it, and then to retrieve this modified
value back to Java, all using JDBC.

I can't figure out how to get the modified BLOB object back to Java
after the PLSQL block has finished executing.

I do:

BLOB bl = BLOB.createTemporary(db,true,BLOB.DURATION_SESSION );
CallableStatement plsqlblock = conn.prepareCall(
"declare\n"+
" stuff... \n"+
"begin\n"+
" procThatModifiesBLOB(?);\n"+
"end;\n");
plsqlblock.setBlob(1, bl);
plsqlblock.execute();

bl = plsqlblock.getBlob(1); //**** doesn't work.

How do I retrieve the modified value of "bl" after "plsqlblock"
finishes executing?
Jul 19 '05 #1
0 3205

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