exp_050.htm

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<p><b><span style="font-size:22pt">Explaination 050: &nbsp;</span></b></p>

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	<p>
	You cannot specify column names in the DELETE clause of the DELETE statement. Syntax of this command is: DELETE FROM table_name WHERE column_name = value. <br>
	</p>

	<p>
	  Incorrect Answers <br>
	</p>

	<p>
	  A: Error in this statement is related with list of columns in the DELETE statement, not with absence of row with DEPT_ID = 90 in the EMPLOYEES table. <br>
	</p>

	<p>
	  B: Error in this statement is related with list of columns in the DELETE statement, not with  NOT NULL constraint on the JOB_ID column. <br>
	</p>

	<p>
	  D: Error in this statement is related with list of columns in the DELETE statement, not with the primary key constraint on the EMPLOYEE_ID column. <br>
	</p>

	<p>
	  OCP Introduction to Oracle 9i: SQL Exam Guide, Jason Couchman, p. 270-273 <br>
	</p>

	<p>
	  Chapter 6: Manipulating Oracle Data
	</p>

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