mysql.sock的作用

     1、在编译安装mysql的时候,会将mysql的配置文件复制到/etc/my.conf中:   [root@Web-lnmp02 mysql]# cp support-files/my-sm...

Slides: Free Online Presentation Maker Service

As part of our day to day activities (both work related and leisurely), we often have to present ideas to others. These ideas could be r...

MySQL优化之――简单语法

  1、默认约束   --mysql   CREATE TABLE emp   (   id INT DEFAULT 12   )   2、设置自增列   MYSQL的自增列一定要是有索引的列...

Percona Monitoring Plugins 1.1.5 release

Percona is glad to announce the release of Percona Monitoring Plugins 1.1.5. Changelog: Added more DB instance classes to pmp-check...

Oracle 11R2 Grid Infrastructure执行root.sh脚本rootcrs.pl

Oracle 11.2.0.4在redhat linux 6.1上执行/u01/app/product/11.2.0/crs/root.sh脚本时报以下错误信息: /u01/app/product/11.2.0/crs/bin/srvctl s...

Learning SQL Server 2016

This page is an attempt to list all the new features in SQL Server 2016 and give data professionals a place to begin learning about what ...

Oracle表联结之嵌套循环

1.单表访问: 分表,分区,建索引,全表扫描---开并行, 永远把它 放内存,压缩 2.多表关联,任何时刻只能是2个表关联,得到的结果集再和其他表关...

How Engineers Get Found on LinkedIn (and how to hide)

There are two types of software engineers on LinkedIn: those aggravatedby the largevolume and poor contentof incoming recruiter email, a...

一句SQL语句,可能就是一个定时炸弹

    一句小小的SQL语句,在数据量很小的时候,可能是一句相当完美的语句。但是随着数据量的不断增加,你是否能想到他带来的灾难性的后果呢...

Comparing Oracle and SQL Server Code - Part 1

Problem In this tip we are going to compare the SQL Server (T-SQL) and Oracle (PL-SQL) extensions of the SQL language. The tip will compa...

1 2 3 4 5 ... 472 下一页 共 472 页