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The EMP table contains these columns: LAST NAME VARCHAR2(25) SALARY NUMBER(6,2) DEPARTMENT_ID NUMBER(6) You need to display the employees who have not been assigned to any department. You write the SELECT statement: SELECT LAST_NAME, SALARY, DEPARTMENT_ID FROM EMP WHERE DEPARMENT_ID = NULL; What is true about this SQL statement? （） The SQL statement displays the desired results.。 The column in the WHERE clause should be changed to display the desired results.。 The operator in the WHERE clause should be changed to display the desired results.。 The WHERE clause should be changed to use an outer join to display the desired results.。
An administrator is moving a volume group from one server to another. The disks will be physically moved between the two systems. Which two operations are required on the volume group prior to the physical disk switch？（） ’varyoffvg’ and ’exportvg’。 ’varyofflv’ and ’importvg’。 ’varyofflv’ and ’migratepv’。 ’varyoffvg’ and ’migratevg&rsquo。
A customer has received a quotation from Dell for Intel-based 1U servers. What is the first step in submitting your quotation？ （） Try to sell IBM X-Architecture technology to the customer and explain its benefits.。 Take the customer to the Dell Web site for determining a similar server configuration.。 Submit a special bid to receive additional discount on 1U servers.。 Design a comparable solution while highlighting IBM advantages.。
You are attempting to secure a MySQL server by using SSL encryption. On starting MySQL, you get this error: 130123 10:38:02 [ERROR] mysqld: unknown option '—ssl' What is the cause of the error?（） The — ssl level was not specified。 The server was not started with the – enable–ssl-plugin option。 — ssl is not a valid server option。 The mysqld binary was not compiled with SSL support。 The server's SSL certificate was invalid。
Which of the following calendaring syntax expressions would evaluate to the last day of every month？（）
