Hi, I am working on a Windows XP SP2 32bit with MonetDB v5.2.2 kernel v1.20.0 I have built a java program to upload data from an Oracle Database Table with 6milion rows. After about 4milion of rows loaded the performance decreases dramatically. I have tried to use other way, which is generating all insert statements to a file and then using mclient to execute all the insert statements. Slower that the java option because the autocommit=on and parsing of each statement, but the result is the same. After about 4milion of rows loaded the performance decreases dramatically. Can someone give an explanation for this behavior? Thanks, Paulo Jorge Dias -- View this message in context: http://www.nabble.com/Slow-Data-Load-tf4929292.html#a14108678 Sent from the monetdb-users mailing list archive at Nabble.com.