What Do You Know About Data Definition Language? Take This Quiz To Find Out More About Ddl.

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1. Which DDL statement creates a new object?

Explanation

The correct answer is "Create". The Create statement is a Data Definition Language (DDL) statement that is used to create a new object in a database. It is commonly used to create tables, views, indexes, and other database objects. The Create statement specifies the name, structure, and properties of the object being created.

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About This Quiz
What Do You Know About Data Definition Language? Take This Quiz To Find Out More About Ddl. - Quiz

A data definition language (DDL), sometimes called data description language, is a syntax for defining data structures, especially database schemas. Take this quiz to find out more about DDL.

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2. The rename statement is used to ___ an object.

Explanation

The rename statement is used to change the name of an object.

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3. In order to modify an existing database object, we use the ___ statement.

Explanation

To modify an existing database object, we use the "Alter" statement. This statement allows us to make changes to the structure or properties of a database object, such as tables, views, or procedures. It can be used to add or remove columns, change data types, modify constraints, or rename the object. The "Alter" statement is essential for making alterations to an existing database object without having to recreate it from scratch.

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4. This command "ALTER TABLE sink ADD bubbles INTEGER;" adds a...

Explanation

The given command "ALTER TABLE sink ADD bubbles INTEGER;" adds a column named "bubbles" to the table "sink" with the data type of INTEGER. This means that a new column will be created in the table, allowing for the storage of integer values in that column.

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5. All of the following are DDL statements except...

Explanation

The given answer is "Object". The reason for this is that "Rename", "Create", and "Alter" are all examples of Data Definition Language (DDL) statements. DDL statements are used to define or modify the structure of a database, such as creating tables, modifying columns, or renaming objects. On the other hand, "Object" is not a DDL statement but rather a general term that refers to any entity or item within a database, such as tables, views, or indexes.

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6. Data definition language lets you create and alter ___ objects.

Explanation

Data definition language (DDL) is used to create and alter database objects, such as tables, views, indexes, and schemas. A schema is a logical container that holds database objects, allowing users to organize and manage their data effectively. Therefore, the correct answer is "Schema."

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7. Which of these SQL statements can be used to grant or revoke privileges?

Explanation

DDL stands for Data Definition Language, which is a subset of SQL used to define and manage the structure of a database. DDL statements like CREATE, ALTER, and DROP can be used to create, modify, or delete database objects such as tables, indexes, and views. In addition to these operations, DDL statements also include the ability to grant or revoke privileges on these objects. Therefore, the correct answer is DDL.

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8. The DROP statement ___ an object.

Explanation

The DROP statement is used to remove or delete an object from a database. When the DROP statement is executed, it destroys the specified object, effectively eliminating it from the database. This can include tables, views, indexes, or any other database object that is no longer needed or required.

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9. Which of these statements begins with alter?

Explanation

The statement that begins with "alter" is "audit".

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10. Which of these statements requires an exclusive access to a specified object?

Explanation

The statement "CREATE" requires exclusive access to a specified object because it involves creating a new object or entity in a database. When creating a new object, exclusive access is needed to ensure that no other operations or modifications are being made to the object simultaneously, which could lead to conflicts or inconsistencies.

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Which DDL statement creates a new object?
The rename statement is used to ___ an object.
In order to modify an existing database object, we use the ___...
This command "ALTER TABLE sink ADD bubbles INTEGER;" adds...
All of the following are DDL statements except...
Data definition language lets you create and alter ___ objects.
Which of these SQL statements can be used to grant or revoke...
The DROP statement ___ an object.
Which of these statements begins with alter?
Which of these statements requires an exclusive access to a specified...
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