stored to (datesArray and programsDict) during its initialization is never read

auto_increment 问题: 原文: https://yq.aliyun.com/articles/59263?spm=5176.8091938.0.0.bjzoFN 官方文档:https://dev.mysql.com/doc/refman/5.6/en/innodb-auto-increment-handling.html 导致auto_increment变小的几种情况: 1. alter table xx auto_increment = yy; 2. truncate table

1 Protection Profile Introduction ? This document defines the security functionality expected to be provided by a general-purpose operating system capable of operating in a networked environment. It also provides a set of assurance components that de

一份ORACLE DBA面试题 一:SQL tuning 类 1:列举几种表连接方式 答:Oracle的多表连接算法有Nest Loop.Sort Merge和Hash Join三大类,每一类又可以分为三小类. 以Nest Loop为例: 传统的Nest Loop连接: 针对In.Exists优化的Semi Nest Loop: 专门针对Not In.Not Exists优化的Anti Nest Loop. Semi/Anti *** Join这几种也叫半连接. (可以补充一下这三个连接的不同之

14.6 InnoDB Table Management 14.6.1 Creating InnoDB Tables 14.6.2 Moving or Copying InnoDB Tables to Another Machine 14.6.3 Grouping DML Operations with Transactions 14.6.4 Converting Tables from MyISAM to InnoDB 14.6.5 AUTO_INCREMENT Handling in Inn

文档 ID 420787.1 White Paper Oracle Applications Multiple Organizations Access Control for Custom Code Checked for relevance on 12-JAN-2011 See Change Record This document discusses how to update the customization code that is affected by the access co

APPLIES TO: Oracle Database - Enterprise Edition - Version 9.2.0.1 to 11.2.0.3 [Release 9.2 to 11.2]Information in this document applies to any platform.***Checked for relevance on 24-Jan-2012*** GOAL How to know which parameter is obsolete and/or de

About Swift Stored Properties In its simplest form, a stored property is a constant or variable that is stored as part of an instance of a particular class or structure. Stored properties can be either variable stored properties (introduced by the va

1. 基本信息 hadoop    版本 hadoop-0.20.205.0.tar.gz 操作系统   ubuntu 2. 问题 在使用Hadoop开发初期的时候遇到一个问题. 每次重启系统后发现不能正常运行hadoop.必须执行  bin/hadoop namenode -format  进行格式化才能成功运行hadoop,但是也就意味着以前记录的name等数据丢失. 查询日志发现错误: 21:08:48,103 INFO org.apache.hadoop.hdfs.server.name

1. 概述 通过定义构造器 initializers 创建类.结构体和枚举的一个实例.与Objective-C的 initializers 不同的是,Swift中的 initializers 没有返回值. 类类型 class types 的实例也可以实现析构器 deinitializer,在类被释放之前,进行清理工作. 2. stored properties的初始化(Setting Initial Values for Stored Properties) 类和结构体的 stored prop