| Oracle9i Supplied PL/SQL Packages and Types Reference Release 2 (9.2) Part Number A96612-01 | 
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This package provides access to SQL ALTER SESSION and SET ROLE statements, and other session information, from PL/SQL. You can use this to set preferences and security levels.
This chapter discusses the following topics:
This package runs with the privileges of the calling user, rather than the package owner SYS.
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