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For Microsoft SQL Server, the following modi cations are required: Change DATE to DATETIME Microsoft SQL Server does not recognize DATE as a data type. Therefore, all references to DATE in the CREATE TABLE statements must be changed to DATETIME. For iSQL, put statements in batches The iSQL client expects SQL statements to be run in batches with the keyword go written on a line by itself at the end of every batch. While most SQL clients run statements as soon as they encounter the semicolon that marks the end of each statement, iSQL waits for the keyword go. The number of statements in a batch is purely up to you, but if you put too many in a batch, problems are more dif cult to resolve. Just add the keyword on a line by itself periodically throughout the SQL statements, and make sure you also have one at the very end.
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Choose the correct responses to each of the multiple-choice questions. Note that there may be more than one correct response to each question. 1. SQL is a. A language invented by Dr. E. F. Codd b. A language used to communicate with relational databases c. A language used to de ne Entity Relationship Diagrams d. Used to de ne and modify database objects e. Used to de ne web pages 2. A database is a. A named data structure such as a table, view, or index b. Software provided by the database vendor c. A collection of interrelated data items that are managed as a single unit d. De ned in the same way by all software vendors e. Implemented differently by different vendors
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3. A database object is
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a. A named data structure such as a table, view, or index b. A structure such as a table, view, or index c. Software provided by the database vendor d. A collection of interrelated data items that are managed as a single unit e. A collection of related records that are stored as a single unit 4. A database management system is a. A structure such as a table, view, or index b. A collection of interrelated data items that are managed as a single unit c. Software provided by the database vendor d. Often abbreviated as DBMS e. A named data structure such as a table, view, or index 5. Examples of RDBMSs include a. INGRES b. MySQL c. PostgreSQL d. Oracle Database e. Microsoft SQL Server 6. Basic services provided by the DBMS include a. Support of a query language b. Generation of Entity Relationship Diagrams c. Security mechanisms to prevent unauthorized data access and modi cation d. Moving data to and from the physical les as needed e. Storage of data in tabular form 7. Components of a relational database include a. Relationships b. Tables c. User views d. ERDs e. Constraints
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8. In an ERD, maximum cardinality is shown with a. A circle drawn on the relationship line b. A vertical line drawn across the relationship line c. A crow s foot on an end of the relationship line d. No symbol on the end of the relationship line e. The notation <pk> above the relationship line 9. Types of database constraints include a. NOT NULL b. Relationship c. Primary key d. CHECK e. Unique 10. Functions of views include a. Documenting relationships between tables b. Improving query performance c. Hiding columns users need not see d. Hiding rows users need not see e. Exposing complex database operations 11. Normalization is intended to solve the following problems: a. Insert anomaly b. Slow performance c. Creation anomaly d. Delete anomaly e. Update anomaly 12. The normalization process a. Starts with tables to help designers discover the user views b. Was developed by Dr. E. F. Codd c. Was developed by Oracle d. Is systematically applied to each user view e. Is easily mastered
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