I try to optimize sqlldr, but don’t know how to set the parameters. I am trying to load 21,000,000 records per day, but currently don’t manage to load all data in time. The loading is always 1 day behind. I am using conventional loading (I cannot disable indexes before and after loading, because of users accessing tables during the day and the time it will take to rebuild indexes). The table contains data for 1 and 1/2 month only with already 800,000,000 records. Each record contains 180 columns.
What will the best sizes be to set the following parameters:
bindsize, rows, columnarrayrows, readsize.
Currently I did not set any parameters. Am using defaults only. Each file to load contains 28,000 records. It took +- 4 minutes to load a file into 4 oracle database tables.
Regards
Bonita