脚踏实地、勇往直前!
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发布时间:2013-11-18 21:44:50
如何安装hadoop1.下载hadoophadoop-1.2.1.tar.gz2.安装jdk安装jdk1.6[root@hxl soft]# java -versionjava version "1.6.0_35"Java(TM) SE Runtime Environment (build 1.6.0_35-b10)Java HotSpot(TM) Client VM (build 20.10-b01, mixed mode, sharing)3.安装ssh[root@hxl soft]# rpm -qa|grep sshopenssh-.........【阅读全文】
发布时间:2013-11-14 22:02:27
mysql> use test;Database changedmysql> delimiter //mysql> CREATE FUNCTION hello (s CHAR(20)) RETURNS CHAR(50) -> RETURN CONCAT('Hello, ',s,'!'); -> //ERROR 1418 (HY000): This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA in its declara.........【阅读全文】
发布时间:2013-11-07 20:26:04
今天有个同事在实施上线脚本的时候,发现某个函数实施报错,错误信息如下:1548 cannot load mysql.proc.the table is probably corrupted.检查发现开发库和生产库的数据库版本不一致,mysql.proc中的comment字段类型不一致.在开发库中该字段类型为`comment` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL.........【阅读全文】