New MySQL toys

markdown/2006-01-25-new-mysql-toys.md

@@ -0,0 +1,38 @@
+<!--# set var="title" value="New MySQL toys" -->
+<!--# set var="date" value="January 25, 2006" -->
+
+<!--# include file="include/top.html" -->
+
+In 5.1.5:
+
+	SELECT ExtractValue(’<a>foo<b>bar</b></a>’, ‘//b’);
+
+		bar
+
+	SELECT UpdateXML(’<a>foo<b>bar</b></a>’, ‘//b’, ‘zig’);
+
+		<a>foozig</a>
+
+XSLT implementation on its way, maybe? :)
+
+In 5.1.6:
+
+	CREATE EVENT e
+	ON SCHEDULE EVERY 1 DAY
+	ON COMPLETION PRESERVE
+	DO INSERT INTO log VALUES (1);
+
+_(think cron)_
+
+And:
+
+	CREATE EVENT e
+	ON SCHEDULE AT ‘2006-01-01 03:00:00′
+	ON COMPLETION NOT PRESERVE
+	DO OPTIMIZE TABLE foo;
+
+_(think at)_
+
+The server variable “event\_scheduler” has to be set to 1 for these to work.
+
+<!--# include file="include/bottom.html" -->