单项选择题 You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance which contains multiple Agent jobs. The jobs run each job on each day of the week by using seven shared schedules. You must make sure that a job named Job4 doesn；t run Wednesday.  So what action should you perform to achieve this goal？（）

单项选择题 You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a stored procedure. The stored procedure implements a database maintenance process. A SQL Server Agent job should be created to that runs the stored procedure. Besides this， you must make sure that after it is completed successfully， the job is removed.  What should you do？ （）

单项选择题 You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. A new SQL Agent job has been created by you. The job includes a Windows PowerShell job step which transfer data between servers by using the SQLCmd utility. If the job fails, you must make sure that an operator named ReactGroup is informed by receiving an e-mail.  So what action should you perform to achieve this goal? （）