exp_009.htm

来自「oracle DBA的资料」· HTM 代码 · 共 50 行

HTM
50
字号
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<title>Ocp test </title>
</head>
<body bgcolor="white" text="black" link="blue" vlink="purple" alink="red">
<p><b><span style="font-size:22pt">Explaination 009: &nbsp;</span></b></p>

<span style="font-size:18pt">
	<p>
	ALTER TABLE statement with ENABLE CONSTRAINT keywords is correct answer to enable an existing constraint. <br>
	</p>

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

	<p>
	  A: This statement is missing CONSTRAINT keyword. <br>
	</p>

	<p>
	  B: "STATUS =" is incorrect syntax to enable constraint for the table. <br>
	</p>

	<p>
	  D: There is no STATUS keyword in the command to enable constraint. <br>
	</p>

	<p>
	  E: There is no TURN ON keywords in the command to enable constraint. <br>
	</p>

	<p>
	  F: There is no TURN ON keywords in the command to enable constraint. <br>
	</p>

	<p>
	  OCP Introduction to Oracle 9i: SQL Exam Guide, Jason Couchman, p. 239-240 <br>
	</p>

	<p>
	  Chapter 5: Creating Oracle Database Object
	</p>

</span>

</body>
</html>
<br>

⌨️ 快捷键说明

复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?