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Which of the following is among the 12 Codd's Rules?

Which of the following is among the 12 Codd's Rules?

  1. View Updating Rule
  2. Relational Level Operation Rule
  3. Distribution Independence Rule
  4. None of the above
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Which of the following is TRUE about The Foundation Rule in the 12 Codd's Rules?

Which of the following is TRUE about The Foundation Rule in the 12 Codd's Rules?

  1. Relational databases are required.
  2. Databases contain a wide variety of information, and each row and column of each table must hold this information.
  3. The primary key value, table name, and column name are characteristics that allow us to access the precise data (atomic value) logically from a relational database.
  4. Null values are treated in database records according to this rule.
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Which of the following is TRUE about Information Rule in the 12 Codd's Rules?

Which of the following is TRUE about Information Rule in the 12 Codd's Rules?

  1. The primary key value, table name, and column name are characteristics that allow us to access the precise data (atomic value) logically from a relational database.
  2. Null values are treated in database records according to this rule.
  3. Database systems must update all views tables on a regular basis.
  4. Databases contain a wide variety of information, and each row and column of each table must hold this information.
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In case of _____________Rule, the primary key value, table name, and column name are characteristics that allow us to access the precise data (atomic value) logically from a relational database

In case of _____________Rule, the primary key value, table name, and column name are characteristics that allow us to access the precise data (atomic value) logically from a relational database.

  1. Systematic Treatment of Null Values
  2. Guaranteed Access
  3. View Updating
  4. Physical Data Independence
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What is the meaning of Null Values in Systematic Treatment of Null Values in the 12 Codd's Rules?

What is the meaning of Null Values in Systematic Treatment of Null Values in the 12 Codd's Rules?

  1. No value in cell
  2. Inappropriate Information
  3. Unknown data
  4. All of the above
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What is TRUE about the Active/Dynamic Online Catalog based on the relational model in the 12 Codd's Rules?

What is TRUE about the Active/Dynamic Online Catalog based on the relational model in the 12 Codd's Rules?

  1. The primary key value, table name, and column name are characteristics that allow us to access the precise data (atomic value) logically from a relational database.
  2. Null values are treated in database records according to this rule.
  3. Database dictionaries represent the complete logic of all descriptive data, which must be stored online.
  4. None of the above
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Which of the following is supported in Comprehensive Data SubLanguage Rule in the 12 Codd's Rules?

Which of the following is supported in Comprehensive Data SubLanguage Rule in the 12 Codd's Rules?

  1. Data Definition
  2. View Definition
  3. Data Manipulation
  4. All of the above
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In the case of _________ Independence Rule, Physical independence of data to access the database is a requirement for a database or an application

In the case of _________ Independence Rule, Physical independence of data to access the database is a requirement for a database or an application.

  1. Physical Data
  2. Logical Data
  3. Integrity
  4. Distribution
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In the case of the ________Independence Rule, It shouldn't make a difference what the user sees (application) if the logical structure changes

In the case of the ________Independence Rule, It shouldn't make a difference what the user sees (application) if the logical structure changes.

  1. Physical Data
  2. Logical Data
  3. Distribution
  4. Integrity
discuss
In the case of ___________Independence Rule, if using the SQL queries language to insert data into table's cells, the database must maintain integrity independence

In the case of ___________Independence Rule, if using the SQL queries language to insert data into table's cells, the database must maintain integrity independence.

  1. Interdependent
  2. Intradependent
  3. Integration
  4. Integrity
discuss
total MCQs: 10

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