Saturday, January 15, 2011

What is the difference between Access Logging and Query Logging in Teradata?

What is the difference between Access Logging and Query Logging in Teradata?

1. Access Logging is concerned with security (i.e. who’s is doing what). In access logging you ask the database to log who’s doing what on a given object. The information stored is based on the object not the SQL fired or the user who fired it.
2. Query Logging (DBQL) is used for debugging (i.e. what’s happening around ?). Incase of DBQL database keep on tracking various parameters i.e. the SQLs, Resource, Spool Usage, Steps and other things which help you understand what’s going on, the information is fruitful to debug a problem. Further DBQL is enabled on a User id rather than an object like say Table or so.


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