在使用Oracle客户端PL/SQL进行数据库操作时，当通过该工具创建新用户，并在该用户下建立数据表后，执行数据表查询操作时常会遇到提示信息：Dynamic Performance Tables not accessible, Automatic Statistics Disabled for this session. You can disable statistics in the pref ...

Developers often dismiss dynamic SQL used in PL/SQL programs for two reasons. One reason is that it's riskier because the SQL statements aren't parsed until runtime, so it's more difficult to catch ...