Exam 6: Introduction to SQL

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The ON UPDATE ________ option allows changes to a parent table to pass onto a child table or tables.

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The ________ command enables one to change table definitions.

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SQL is both an American and international standard for database access.

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The CREATE SCHEMA DDL command is used to create a table.

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Expressions are mathematical manipulations of data in a table that may be included as part of the SELECT statement.

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In SQL the ________ and ________ clauses are required,while the ________ clause is needed when only certain rows are to be retrieved or multiple tables are to be joined.

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Which of the following is a technique for optimizing the internal performance of the relational data model?

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The asterisk (*)wildcard designator can be used to select all fields from a table,as well as in WHERE clauses when an exact match is not possible.

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A DBMS that manages data as a collection of tables in which all data relationships are represented by common values in related tables is called a(n)________ DBMS.

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In an SQL statement,which of the following parts states the conditions for row selection?

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The ________ Boolean operator joins two or more conditions and returns results only when all conditions are true.

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Indexes generally slow down access speed in most RDMS.

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Which of the following will produce the minimum of all standard prices?

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A database table is defined using the data definition language (DDL).

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A ________ is a virtual table that is created dynamically upon request to a user.

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Which of the following questions is answered by the SQL statement? Select Count (Product_Description)from Product_T;

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To update data in SQL we must inform the DBMS what ________,________,and ________ are involved.

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Commands used to control a database are part of the ________ or ________.

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How is the having clause different from the where clause?

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The views are created by executing a CREATE VIEW SQL command.

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