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Brayden is a researcher in a quantum computing research lab. He recently conducted an experiment titled "Quantum Entanglement Study" to explore the properties of entanglement. For his research, he needs to handle three main types of data: Experiments, Qubits, and Results. Write the DDL statements to create the following tables to handle the data: Table: ExperimentsTable: QubitsTable: ResultsAfter logging the results of the "Quantum Entanglement Study" experiment, Brayden realizes he needs to make some changes to the database tables. Here are the actions he takes:Drop the table named Qubits as it is no longer needed in his database.Alter the Experiments table to add a new column named ResearcherID to store the unique identifier with the data type of NUMBER for each researcher involved in the experiments.Note: The user must write only the query to create, drop, and alter the table. The query to print the description of the table is already given.Input format :No console inputOutput format :The output displays the successful table creation status and the structure of some tables

Question

Brayden is a researcher in a quantum computing research lab. He recently conducted an experiment titled "Quantum Entanglement Study" to explore the properties of entanglement. For his research, he needs to handle three main types of data: Experiments, Qubits, and Results. Write the DDL statements to create the following tables to handle the data: Table: ExperimentsTable: QubitsTable: ResultsAfter logging the results of the "Quantum Entanglement Study" experiment, Brayden realizes he needs to make some changes to the database tables. Here are the actions he takes:Drop the table named Qubits as it is no longer needed in his database.Alter the Experiments table to add a new column named ResearcherID to store the unique identifier with the data type of NUMBER for each researcher involved in the experiments.Note: The user must write only the query to create, drop, and alter the table. The query to print the description of the table is already given.Input format :No console inputOutput format :The output displays the successful table creation status and the structure of some tables

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Solution

To create the tables, you can use the CREATE TABLE statement in SQL. Here are the DDL statements:

CREATE TABLE Experiments (
    ExperimentID INT PRIMARY KEY,
    ExperimentName VARCHAR(255),
    ExperimentDate DATE
);

CREATE TABLE Qubits (
    QubitID INT PRIMARY KEY,
    QubitState VARCHAR(255),
    ExperimentID INT,
    FOREIGN KEY (ExperimentID) REFERENCES Experiments(ExperimentID)
);

CREATE TABLE Results (
    ResultID INT PRIMARY KEY,
    ResultData VARCHAR(255),
    ExperimentID INT,
    FOREIGN KEY (ExperimentID) REFERENCES Experiments(ExperimentID)
);

To drop the Qubits table, you can use the DROP TABLE statement:

DROP TABLE Qubits;

To alter the Experiments table to add a new column named ResearcherID, you can use the ALTER TABLE statement:

ALTER TABLE Experiments
ADD COLUMN ResearcherID NUMBER;

These statements will create the tables, drop the Qubits table, and add a new column to the Experiments table.

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Similar Questions

After logging the results of the "Quantum Entanglement Study" experiment, Brayden realizes he needs to make some changes to the database tables. Here are the actions he takes:Drop the table named Qubits as it is no longer needed in his database.Alter the Experiments table to add a new column named ResearcherID to store the unique identifier with the data type of NUMBER for each researcher involved in the experiments.

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