榜单
服务器优惠
AI论文
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Django 2.1.11 release notes
Django 2.1.11 release notes CVE-2019-14232: Denial-of-service possibility in django.utils.text.Truncator CVE-2019-14233: Denial-of-service possibility in strip_tags() CVE-2019-... -
More Language Constructs
Destructuring Declarations Type Checks and Casts This expressions Equality Operator overloading Null Safety Exceptions Annotations Reflection Serialization Scope Function... -
Variance of generic types
Variance of generic types Variance of generic types There are three main kinds of generic types with respect to subtyperelations between them: invariant, covariant, and contrav... -
Django 2.1.11 版本发行说明
Django 2.1.11 版本发行说明 CVE-2019-14232: Denial-of-service possibility in django.utils.text.Truncator CVE-2019-14233: Denial-of-service possibility in strip_tags() CVE-2019-14234: ... -
可空性
Java 与 Kotlin 中的可空性 Support for nullable types Platform types Support for definitely non-nullable types Checking the result of a function call Default values instead of null F... -
5.1 利用 GC 快照读恢复数据
5.1 利用 GC 快照读恢复数据 5.1.1 历史数据保留策略 5.1.2 查询历史数据 5.1.3 查询历史数据示例： 5.1.4 恢复被更新/删除的数据 5.1 利用 GC 快照读恢复数据 当遇到数据被误更新或误删除的情况，很多人想到的是 Oracle 的闪回或者 MySQL 的基于 binlog 实现的闪回工具。作为 NewSQL 的... -
Diagnostic Methods
SQL Diagnostics Statement Summary Tables Identify Expensive Queries Using Logs Save and Restore the On-Site Information of a Cluster Understanding Stale Read and safe-ts in TiK... -
开发主题
开发主题 开发主题 使用django的模板开发，下面给出了一些必要说明（ 建议新建一个deeru项目，在里面开发: deeru - admin install deeru2 创建django app: python manage . py startapp m_theme 执行之后会生成m_theme文件夹，里面的主... -
Downgrading
Downgrading Supported Downgrade Procedures Restore an arangodump Backup Start the old package on the data directory backup Other possibilities Downgrading A direct, in-plac... -
Fly/Walk Navigation
Fly/Walk Navigation Walk Navigation Usage Fly Navigation Usage Fly/Walk Navigation The standard navigation controls are sometimes limiting, especially for large environments...