study notes
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Welcome to the 'study notes' tag page at Technorati. This page features content from the farthest reaches of the Blogosphere that authors have "tagged" with 'study notes'.
Latest blogosphere posts tagged “study notes”
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MERGE例子中的union搜索优化
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Authority: 118
在 MERGE存储引擎的简单测试 – MySQL邯郸学步 一文中,有一个Union SELECT, 极其消耗时间, 仔细分析会发现,使用的搜索条件对应字段是TIMESTAMP, 索引几乎没用. 那么我们能不能绕开时间字段,使用作为主键的自增字段object_id 呢? ...4 days ago -
Javascript滴MD5加密函数
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Authority: 118
对于某些安全要求比较高的Web应用来说，在浏览器端提交加密过的密码还是很有必要的。在网上找了两个js文件，分别对应md5、sha1加密。 下载地址: JavaScript加密函数. # 验证一下加密效果 # 1. PHP版md5 user@~$ php -r ‘echo md5(”123456″);’ ...1 week ago -
多条件排序- MySQL邯郸学步
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Authority: 118
通常在写SQL语句时会碰到需要对结果集进行排序，使用’order by’单个条件还行，那么多个条件怎么写？ 比如:先对时间逆序，再按编号排正序。要求第二次排序不打乱对时间的排序。 1 SELECT id,name,created,action FROM tbl_jobs ORDER BY created ...2 weeks ago -
解决IE6下javascript不能跳转
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Authority: 118
用Javascript写了个跳转，ff ie8下都正常，唯独ie6不能用,怪了去. 原代码: My Link 后来改成: My Link 现在ie6可以跳转了，看来以后空链接只能用’###’，毕竟IE6还是大数. 相关文章： 分享几个PHP和Javascript计算农历的源码3 weeks ago -
What Manner Of Man – Worthy Of Worship
FIRE AND HAMMER —
Authority: 121
“And he said unto them, Is a candle brought to be put under a bushel, or under a bed? and not to be set on a candlestick? For there is nothing hid, which shall not be manifested; neither was any thing kept secret, but that it should come abroad. If any man have ears to hear, let him hear. And he said unto ...4 weeks ago -
Confronting The Culture
FIRE AND HAMMER —
Authority: 121
Confronting The Culture Acts 17:15-34 The apostle Paul has been to Thessalonica, and forced to leave there due to those who were trying to kill him, basically the Jewish people, as he taught them in their synagogue. He then goes to Berea, and the Jews of Berea are much more “noble” because they search the ...8 weeks ago
