What is fine-grained access control in Oracle?
What is fine-grained access control in Oracle?
Fine-grained access control enables you to build applications that enforce security policies at a low level of granularity. These policies are also referred to as VPD policies. You can use it, for example, to restrict customers accessing an Oracle database server to see only their own accounts.
What is fine-grained access control?
Fine-grained access control is a method of controlling who can access certain data. Most often used in cloud computing where large numbers of data sources are stored together, fine-grained access control gives each item of data its own specified policy for access.
How do I enable VPD?
Setting up a VPD involves the following steps.
- Setup Test Environment.
- Create an Application Context.
- Create Login Trigger.
- Create Security Policies.
- Apply Security Policies to Tables.
- Test VPD.
- What Next.
What is VPD security?
Virtual Private Database (VPD) is a database security feature that is built into an Oracle database server, as opposed to being part of an application that is accessing the data. The user is only allowed to see the data they have been given permission to see.
Which operator is used for enabling fine-grained run time?
The eddy operator provides an example of fine-grained run-time control by tuple routing through operators.
What is the key benefit of least privilege approach to security?
The key benefit of the least privilege approach to security is that it minimizes the level of compromise in the event of a security breech. This means : The users who have permissions go on reducing.
What is the difference between coarse grained and fine-grained?
Coarse-grained materials or systems have fewer, larger discrete components than fine-grained materials or systems. A coarse-grained description of a system regards large subcomponents. A fine-grained description regards smaller components of which the larger ones are composed.
How do you test a VPD?
To Get VPD, we need to subtract the actual vapour pressure of the air from the saturated vapour pressure (VPsat – VPair). And VOILA, you have VPD. Now it’s time to consult the VPD chart and your plants’ ideal growing temperature range to see if your VPD is within a correct range and your plant is transpiring healthily.
What is Dbms_session Set_context?
At sign-on, a database logon trigger executes, setting the application context for the user by calling dbms_session. set_context. The set_context procedure can be used to set any number of variables about the end user, including the application name, the user’s name, and specific row restriction information.
What are the operators in execution plan?
In the previous article, we talked about the first set of operators you may encounter when working with SQL Server Execution Plans. We described the Non Clustered Index, Seek Execution Plan operators, Table Scan, Clustered Index Scan, and the Clustered Index Seek.
What is adaptive query processing?
Adaptive Query Processing analyzes actual query run time statistics and uses that information for subsequent optimizations. The reasons include a lack of statistical metadata for the query tables, complex join conditions, skewed or rapidly changing data within the tables, and others. …
