You are a professional level SQL Server 2005 database administrator in an international corporation named Wiikigo. You are experienced in implementing high-availability solutions， monitoring the database server， and design deployment. In the company， you major job is the deployment， maintenance and support of Microsoft SQL Server 2005.You work as a database administrator for your company. A SQL Server 2005 database is utilized in your company. And a table named Inventory is contained by the database. A column named Price is included by the table. According to the company policy， you cannot reduce more than 10 percent the value in the Price column in any single database operation. Through many kinds of method， the company makes updates to the Price column. For instance， the utilization of ad hoc queries is one of the methods. Since you are the database administrator， you should confirm that this company policy takes its effect. Which action should be performed？（） A stored procedure should be created， and changes are disallowed by the procedure to the Price column that violates company policy.。 On the Price column， a check constraint should be created， and a specified minimum value is required by the check constraint.。 A trigger should be created， and changes are rolled back by the trigger to the Price column that violates company policy.。 On the Price column， a foreign key constraint is created to a table that valid prices are included.。
如果课堂充满了（），没有提炼和提升，就没有进步。
按危机来源的不同，小企业可能遇到多种危机，除了（）。 供应危机。 财务危机。 品牌危机。 战略危机。
You need to design a student registration database that contains several tables storing academic information. The STUDENTS table stores information about a student. The STUDENT_GRADES table stores information about the student's grades. Both of the tables have a column named STUDENT_ID. The STUDENT_ID column in the STUDENTS table is a primary key. You need to create a foreign key on the STUDENT_ID column of the STUDENT_GRADES table that points to the STUDENT_ID column of the STUDENTS table. Which statement creates the foreign key?（） CREATE TABLE student_grades (student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT student_id_fk REFERENCES (student_id) FOREIGN KEY student (student_id));。 CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id));。 CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT FOREIGN KEY (student_id) REFERENCES student (student_id));。 CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id))。
The ‘lsvg -o’ command is run with an output of only rootvg， but the server has another volume group named datavg， which is not displayed. What is the likely cause？（） datavg is in an offline state.。 ‘lsvg -o’ only displays the root volume group.。 ‘lsvg -o’ only displays the fist volume group.。 datavg has no filesystems and therefore， is inactive.。
A customer has an existing high availability SAN environment with CLARiiON, which has been stable for 16 months. They have recently experienced several outages with their current storage systems. They need to purchase additional storage and have asked about tier 1 storage. They are concerned with connecting their existing storage and servers without trouble.
Which resource should be consulted while developing the solution options?（）
