Download MCSE Readiness Review Exam 70-029: Designing and by Microsoft Press, Robert Sheldon PDF
By Microsoft Press, Robert Sheldon
Here is a shrewdpermanent, reasonably cheap strategy to organize for MCP examination 70-029, Designing and enforcing Databases with Microsoft SQL Server 7.0-a center credits for the recent Microsoft qualified Database Administrator (MCDBA) credential. This READINESS assessment book-and-CD set is helping clients perform answering genuine examination objectives-enabling them to sharpen their test-taking talents and making a choice on parts for extra examine. Randomly generated perform checks on CD convey questions that map to real MCP examination targets. clients can try and retest with assorted query units whenever. The spouse textual content bargains tips for realizing right and unsuitable responses, besides helpful test-prep feedback to shore up functionality.
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Additional info for MCSE Readiness Review Exam 70-029: Designing and Implementing Databases with Microsoft SQL Server 7
Example text
They are easier to implement and are proactive, as opposed to triggers, which are more complex and are reactive. The constraint specifies a logical expression that must be true for data to be accepted. For example, a CHECKconstraint on the rental-id column, which is the primary key for the rental table, could be used to further enforce the domain of the primary key by ensuring that only numbers within a specifiedrange are entered for the key. However, a CHECK constraint on the rental-id column would not enforce referential integrity between the rental table and the customer table.
You cannot use the customer D along with the date sold as the primary key because the customer might buy more than one computer on the same day. You cannot use the date sold along with the customer D as the primary key becausethe customer might buy more than onecomputer on the same day. orrect: You can configure a column to contain system-generated valuesthat uniquely identify each row within a table. When you insert values into a new row, SQL, Server automatically generates the next identifier based on the last identity value that was used andthe increment value specified when the column was created.
C. Add the manager-id column to the employee table with a referential constraint to the emp-id column in the employee table. D. Add the manager-id column to the department table with a referential constraint to the emp-id column in the employee table. a logical database model for a human resource system. Evaluate theemployee and department tables shown on the previous page. Some employees are managers. Thougheach department may have oneor more managers, each employee has onlyone manager. M a t should you change in the model to allow a query to display the name of each employee’s manager and maintaindata integrity?