How do I force a user to drop in Oracle?

How do I force a user to drop in Oracle?

If you want to drop a oracle user with the DROP USER statement to remove a database user and optionally remove the user's objects you can execute 'drop user @USERNAME cascade'.

How do I drop an administrative user in Oracle?

1 Answer. set _oracle_script to TRUE and execute drop command as below. drop user APEX_050000 cascade; User dropped.

How do I delete a user in Oracle?

Identify the correct session and terminate the session by performing the steps below:

  1. Invoke SQL*Plus.
  2. Query V$SESSION supplying the username for the session you want to terminate: SELECT SID, SERIAL#, STATUS, SERVER. ...
  3. Execute the ALTER SYSTEM command to terminate the session: ALTER SYSTEM KILL SESSION ''

What does drop schema do?

DROP SCHEMA removes schemas from the database. A schema can only be dropped by its owner or a superuser. Note that the owner can drop the schema (and thereby all contained objects) even if they do not own some of the objects within the schema.

How do I drop a schema owner in SQL Server?

To change the schema owner from Sql Server Management Studio: Expand your database -> Security -> Schemas. In the Object Explorer Details you can see a list of the schemas and the owners: Right click on the schema that is owned by the user you want to delete and change the owner (Properties -> General -> Schema Owner).

What is schema and example?

A schema is an outline, diagram, or model. In computing, schemas are often used to describe the structure of different types of data. Two common examples include database and XML schemas.

What are the 3 types of schema?

Schema is of three types: Physical schema, logical schema and view schema.

What does a database schema look like?

In database terms, a schema (pronounced “skee-muh” or “skee-mah”) is the organisation and structure of a database. ... Above is a simple example of a schema diagram. It shows three tables, along with their data types, relationships between the tables, as well as their primary keys and foreign keys.

What does cardinality mean?

Cardinality means two things in databases. ... When applied to databases, the meaning is a bit different: it's the number of distinct values in a table column, relative to the number of rows in the table. Repeated values in the column don't count. We usually don't talk about cardinality as a number, though.

What is cardinality of relationship?

Relationship cardinality represents the fact that each parent entity or table within a relationship is connected to a particular number of instances of the child entity or table. ... Each parent in the relationship is connected to zero, one, or more instances of the child entity or table.

What is cardinality example?

If A has only a finite number of elements, its cardinality is simply the number of elements in A. For example, if A={2,4,6,8,10}, then |A|=5.

What is the cardinality rule?

In mathematics, the cardinality of a set is a measure of the "number of elements" of the set. For example, the set contains 3 elements, and therefore. has a cardinality of 3.

What is the difference between counting and cardinality?

Students move from rote counting to finding the number of objects in a set. Cardinality refers to the actual count or number of items in a set.

What is an empty or null set?

Empty Set: The empty set (or null set) is a set that has no members.

How do you find fuzzy cardinality?

In many applications, one prefers a simple scalar approximation of cardinality of a fuzzy set. Scalar cardinality of a fuzzy set is the sum of the membership values of all elements of the fuzzy set. In particular, scalar cardinalities of a fuzzy set which associate to each fuzzy set a positive real number.

What is Alpha cut in fuzzy set?

It is the set of all xs where mu(x) is larger than alpha . In your example, assume alpha is 0.

What is fuzzy power set?

The fuzzy power set F(X) of a crisp set X is closed under both union and intersection. ... The identities for both these operations exists and are (respectively for intersection and union) X and ϕF, where X is a fuzzy set over X defined as ∀x∈X,X(x)=1 and ϕF is a fuzzy set over X defined as ∀x∈X,X(x)=0.

Is are the way to represent uncertainty?

______________ is/are the way/s to represent uncertainty. Explanation: Entropy is amount of uncertainty involved in data. Represented by H(data).

Where does the Bayes rule can be used?

Where does the bayes rule can be used? Explanation: Bayes rule can be used to answer the probabilistic queries conditioned on one piece of evidence.

What is another name for fuzzy inference systems?

Because of its multidisciplinary nature, the fuzzy inference system is known by numerous other names, such as fuzzy-rule-based system, fuzzy expert system, fuzzy model, fuzzy associative memory, fuzzy logic controller, and simply (and ambiguously) fuzzy system.

Is Fuzzy a logic?

Fuzzy logic is based on the observation that people make decisions based on imprecise and non-numerical information. Fuzzy models or sets are mathematical means of representing vagueness and imprecise information (hence the term fuzzy).

Is Fuzzy Logic dead?

Fuzzy logics (there are several kinds) are logical systems which allow statements to take truth values that lie in a continuum between truth and falsehood. ... In this sense, fuzzy logic is not dead.

Is Fuzzy logic still used?

New computing methods based on fuzzy logic can be used in the development of intelligent systems for decision making, identification, pattern recognition, optimization and control. Indeed, fuzzy logic, once thought to be an obscure mathematical curiosity, can be found in many engineering and scientific applications.

Why is fuzzy logic used?

Fuzzy logic are used in Natural language processing and various intensive applications in Artificial Intelligence. Fuzzy logic are extensively used in modern control systems such as expert systems. Fuzzy Logic is used with Neural Networks as it mimics how a person would make decisions, only much faster.