A Secondary Key Is Which of the Following

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Primary markets secondary markets and their roles Which of the following are key roles of financial markets.

. Therefore a candidate key not selected as a primary key is called secondary key. DBMS Objective type Questions and Answers. A The concluding paragraph has a call to action.

Which of the following can be blank null. There are the following type of Indexes. Useful for denormalization decisions 2.

A directory of Objective Type Questions covering all the Computer Science subjects. The surrogate key provides a meaning in the users environment. It can be used to identify the record and it is usually indexed.

This problem has been solved. Under this basic principle of sound tax system the government should not incur a deficit a. A 10 Important Books for UPSC Preparation.

It is maintained for the anchor value of block ie one key-value per block maintained in Index file. Electronics Bazaar is one of best Online Shopping Store in India. Secondary Key Primary key Composite key Foreign key.

Sign In Sign Up. A Non-unique standard B Unique sorted C Non-unique sorted D Non-unique hashed E Unique hashed. A table may have a primary key that is system generated and a secondary key that comes from the sources and other processes.

Facilitating the exchange of currencies between market participants in the foreign exchange market Facilitating the trading of existing securities Creating a larger information gap between surplus and deficit. A dashboard needs to display the 5 highest scores from the table. A DynamoDB table is made up of a Partition Key of UserID a Sort Key with the date and time and an attribute of Score providing the list of all the scores for a game.

A surrogate key is a secondary key created by the database designer to simplify the identification of entity instances. To raise revenue to defray the necessary expenses of the government 16. A secondary key is a non-identifying column or set of columns that can be used to find row in a table.

Primary key Foreign key Secondary key None of the above. However it is considered a candidate key for the primary key. In the following Database Design Language DBDL notation what does SK stand for mployees EmpID LastName FirstName SSN DeptNum AK SSNSK LastName FirstName FK DeptNum à Departments - SQL key - Subkey - Secondary key - Start key.

Which one of the following uniquely identifies the elements in the relation. It is non-identifying in the sense that multiple rows may satisfy an give secondary key value. C There are supporting paragraphs for each key point.

Choose the correct answers. Secondary Key is the key that has not been selected to be the primary key. Group of answer choices Primary key Connecting key Secondary key None of the answers are correct.

DBMS Objective type Questions and Answers. 47 For the following entity-relationship diagram what could the primary key be in the Grade entity. A directory of Objective Type Questions covering all the Computer Science subjects.

It is also termed as Alternate key. To effect a more equitable distribution of wealth c. A secondary key is which of the following.

To achieve social and economic stability d. It is basically a mixed sort of Indexing ie Dense as it is maintained for unique value key and Sparse as it is not maintained for every value. A Primary key in Student entity b Primary key in Course entity c Its own primary key.

It is made on a field to be indexed for faster searches. It is selected from a set of candidate keys. DBMS Objective type Questions and Answers.

Which of the following is not a secondary purpose of taxation. Secondary Key is not a. The primary key cannot have a NULL value.

What is a Secondary Key. Candidate key is an attribute or set of attributes that you can consider as a Primary key. Question is Which one of the following uniquely identifies the elements in the relation Options are A Primary key B Secondary Key C Foreign key D Composite key E Leave your comments or Download question paper.

Secondary key Candidate key Foreign key Alternate key. To serve as key instrument of social control b. Which of the following types of secondary key can be defined for an internal table.

Every value in a table is guaranteed to be accessible through a combination of table name primary key value and column name. Which of the following keys is generally used to represents the relationships between the tables. Which of the following statements best defines surrogate keys.

See the answer See the answer See the answer done loading. Which of the following keys uniquely identifies the entity set. Any view is.

B The primary message is placed only in the concluding paragraph after explanations are given. That is the secondary key. The primary key is the minimal set of attributes which uniquely identifies any row of a table.

Any candidate key can become a primary key. Which of the following statements about the framework of a deductive business messsage are accurate. Nonunique key Primary key Useful for denormalization decisions Determines the tablespace required.

The database must support set-level inserts updates and deletes. D Primary key made up of the primary keys in Student entity and. Primary key 3Determines the tablespace required 4.

Options is. A secondary key is which of the following. Question Which of the following keys uniquely identifies the entity set.

Check all that apply. D None of these. Which of the following is an attribute that can uniquely identify a row in a table.

It depends upon the requirements and is done by the Database Administrator DBA. A surrogate key is a system-assigned primary key generally numeric and auto-incremented. Please continue with your Google account.

Sign In Sign Up. Which of the following is not a valid Codds Relational Database rule. Foreign keys are secondary keys as are any common.

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