I am loading a series of files into a table using SQLLOADER. One of the fields in Loader Control File has been defined as CHAR (4096). I wonder about the limit of CHAR in SQLLOADER Control File. May I for example define it as 1 GB? Is it bad for performance since SQLLOADER will have to allocate a huge buffer space for this?
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Why doesn't the Oracle optimizer use my index?
Querying too much data
Most Oracle developers know that an index is useful when you can use it to restrict your result set to a small number of the total rows in a table.
So, the obvious side…
Cursors in Oracle:
A cursor is used to process individual rows returned by database system for a query.
In oracle every SQL statement executed by the oracle server has a private area. This area contains information about the SQL statement and the…
This video shows how to copy a database user from one database to another user DBMS_METADATA. It also shows how to copy a user's permissions and discusses password hash differences between Oracle 10g and 11g.