SQL Injection (SQLi) is a type of security vulnerability that allows an attacker to interfere with the queries that an application makes to its database. SQL Injection is one of the most common and ...

Last week, a prominent US senator called on the Federal Trade Commission to investigate Microsoft for cybersecurity negligence over the role it played last year in health giant Ascension’s ransomware ...

The TinyTDS gem is meant to serve the extremely common use-case of connecting, querying and iterating over results to Microsoft SQL Server from Ruby using the FreeTDS's DB-Library API. TinyTDS offers ...

In the world of SQL tuning, join methods can make or break performance. Two of the most common join strategies used by Oracle are: Nested Loop Join – efficient for small outer row sets and indexed ...

When working with SQL, joins are essential for combining data from multiple tables. Though you're likely familiar with the basics inner, left, right, and full joins the process of executing these ...

本文重点尝试从ODPS SQL的逻辑执行计划和Logview中的执行计划出发，分析日常数据研发过程中各种优化方法背后的原理，覆盖了部分调优方法的分析，从知道怎么优化，到为什么这样优化，以及还能怎样优化。 一、背景 使用ODPS SQL进行离线数据研发时，开发同学不 ...

在数据库的使用过程中，会用到大量的查询语句。为了节省时间和提高效率，对一些SQL进行调优是十分必要的。 在达梦数据库中，可以查看需要调整的SQL的执行计划并结合ET进行分析，来帮助寻找代价多的计划节点和操作符，指导我们进行SQL的优化。 数据库：达 ...

I've said it before and I'll say it again: If you want to speed up your application, don't look at your code, look at your data access. The two slowest things you can do in application development are ...

This blog post was authored by: Sahaj Saini, PM on the Microsoft Analytics Platform System (APS) team. In this blog post, we’ll provide a quick overview of Symmetric Multi-Processing (SMP) vs.