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query_script_sleep.html
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query_script_sleep.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>query_script_sleep: common_schema documentation</title>
<meta name="description" content="query_script_sleep: common_schema" />
<meta name="keywords" content="query_script_sleep: common_schema" />
<link rel="stylesheet" type="text/css" href="css/style.css" />
</head>
<body>
<div id="main">
<div id="header">
<h1>common_schema</h1> <strong>2.2</strong> documentation
<div class="subtitle">DBA's framework for MySQL</div>
</div>
<div id="contentwrapper">
<div id="content">
<h2><a href="query_script_sleep.html">query_script_sleep</a></h2>
<p>
<strong>sleep</strong>: suspend execution for a given number of seconds
</p>
<h3>SYNOPSIS</h3>
<p>
<blockquote><pre>sleep <number>;
sleep $seconds;
sleep @seconds;
</pre></blockquote>
</p>
<h3>DESCRIPTION</h3>
<p>
<i>sleep</i> is a QueryScript <a href="query_script_statements.html">statement</a> which,
when invoked, makes for a non-busy wait for a given period of time. Essentially, it is a convenience
statement making for a shortcut to a "DO
<a href="http://dev.mysql.com/doc/refman/5.1/en/miscellaneous-functions.html#function_sleep">SLEEP()</a>" execution.
</p>
<p>
<i>sleep</i> takes a number as a parameter, which is the time, in seconds, for which the script is to sleep.
The number can be an integer or a floating point, and it is interpreted as follows:
<ul>
<li><strong>0 or less</strong>: no sleep is done. It makes no sense to provide such values</li>
<li><strong>x, a positive number</strong>: sleep for given number of seconds.</li>
</ul>
</p>
<p>
<i>sleep</i> also accepts a local variable or a MySQL user defined variable as argument.
Such argument is cast to a number and handled as specified above.
</p>
<h3>EXAMPLES</h3>
<p>
Purge rows from table, sleep for <strong>2</strong> seconds in between operations:
<blockquote><pre>
while (delete from world.City limit 10)
{
sleep 2.0;
}
</pre></blockquote>
</p>
<h3>SEE ALSO</h3>
<a href="script_runtime.html">script_runtime()</a>,
<a href="query_script_statements.html">Statements</a>,
<a href="query_script_throttle.html">throttle</a>
<h3>AUTHOR</h3>
Shlomi Noach
<br/>
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<h3>QUERY SCRIPT</h3>
<ul>
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<h3>DEBUG</h3>
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<h3>ROUTINES</h3>
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<li><a title="Execution & flow control" href="execution_routines.html">Execution & flow control</a></li>
<li><a title="General" href="general_routines.html">General</a></li>
<li><a title="Process" href="process_routines.html">Process</a></li>
<li><a title="Query analysis" href="query_analysis_routines.html">Query analysis</a></li>
<li><a title="Schema analysis" href="schema_analysis_routines.html">Schema analysis</a></li>
<li><a title="Security" href="security_routines.html">Security</a></li>
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<h3>VIEWS</h3>
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<div class="clear"> </div>
<div id="footnote" align="center">
<a href="">common_schema</a> documentation
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