blog.csdn

SQL substring字符串截取函数详解：语法差异、数据清洗实战与避坑指南

文章浏览阅读22次。字符串截取是SQL开发中最常见的文本处理需求，substring函数通过指定起始位置和截取长度，能够从任意字段中快速提取需要的子串。不同数据库在实现细节上存在明显差异，例如MySQL支持SUBSTRING_INDEX按分隔符切分，SQL Server对起始位置和长度边界有严格处理，Oracle则允许负数位置从 ...
GitHub

substring-transact-sql.md

[!INCLUDE [sql-asdb-asdbmi-asa-fabricse-fabricdw-fabricsqldb](../../includes/applies-to-version/sql-asdb-asdbmi-asa-fabricse-fabricdw-fabricsqldb.md)] Returns part of ...
Microsoft

SQL Server 2016 end of support is here: Plan your next steps

As of today, July 14, 2026, SQL Server 2016 has reached end of support. For the past decade, SQL Server 2016 has helped organizations run mission-critical applications and support the data needs of ...
Business Wire

Syntax Bio and Applied StemCell Announce Strategic Collaboration to Advance Stem Cell Innovation

CHICAGO & MILPITAS, Calif.--(BUSINESS WIRE)--Syntax Bio, a synthetic biology company programming the next generation of cell therapies, and Applied StemCell Corp. (ASC), a leader in induced ...
devblogs

Generate Embeddings Function and External Model Object Support Are Now Generally Available in Azure SQL

We are excited to announce the General Availability (GA) of AI_GENERATE_EMBEDDINGS and CREATE EXTERNAL MODEL in Azure SQL Database and Azure SQL Managed Instance. These two T-SQL features — CREATE ...
BleepingComputer

Microsoft releases emergency updates to fix Windows Server issues

Microsoft has released out-of-band (OOB) updates to fix issues affecting Windows Server systems after installing the April 2026 security updates. As Microsoft confirmed last week, some admins may ...
bilibili

SQL 字符串裁剪神器：SUBSTRING() 3分钟教你提取关键数据！

简介： 数据库里一堆长字符串，只想取中间的身份证号、手机号或日期怎么办？ 别再手动导 Excel 了，一个 SUBSTRING() 函数全搞定！ 本集重点： 三个参数：str（目标）、pos（从哪开始）、len ...
InfoQ

Microsoft Releases Azure Functions Support for Model Context Protocol Servers

Microsoft has moved its Model Context Protocol (MCP) support for Azure Functions to General Availability, signaling a shift toward standardized, identity-secure agentic workflows. By integrating ...
Ars Technica

Syntax hacking: Researchers discover sentence structure can bypass AI safety rules

Researchers from MIT, Northeastern University, and Meta recently released a paper suggesting that large language models (LLMs) similar to those that power ChatGPT may sometimes prioritize sentence ...
blog.csdn

SQL Server SUBSTRING Functions

本文介绍 SQL 中的 SUBSTRING 函数，该函数用于从指定位置开始截取字符串。通过一个实例展示了如何使用 SUBSTRING 函数从 'Mr.John' 中截取出 'John'。 SUBSTRING(string, start, length)函数，是处理字符数据 ...
builtin

What Is SQL Injection?

SQL injection, also known as SQLi, SQLI or SQL*, is a cyber attack that exploits vulnerabilities in an application’s database queries by inserting malicious SQL code into user input fields. SQL ...