This article is the English version of the original Korean text published on February 8, 2021. It is an analysis targeting ...

This page outlines the SQL features supported by Log Explorer, including common aggregation functions, expressions, and query clauses. The sections that follow break down the remaining components ...

文章浏览阅读10次。在数据库处理中，非结构化字符串（如类JSON日志、配置字段）的key-value提取是高频刚需。其本质是基于分隔符的语义解析，而非坐标式定位；MySQL原生函数中，substring_index凭借分隔符贪婪匹配与正负向计数机制，可模拟正则捕获组能力，成为稳定替代方案。相比SUBSTRING+LOCATE组合易 ...

Hello, I'm Takumi. I usually work on business automation using AI technology and DX system development for the manufacturing industry.Right now, one of the largest paradigm shifts in the history of ...

Returns the ASCII value of the first character in a string. Trims the specified trim string from the start and end of a string. If no trim string is provided, all whitespace is removed from the start ...

Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics SQL analytics endpoint in Microsoft Fabric Warehouse in Microsoft Fabric SQL database in Microsoft Fabric ...

dbid smallint ID of database. For static SQL in a stored procedure, the ID of the database containing the stored procedure. Null otherwise. objectid int ID of object. Is NULL for ad hoc and prepared ...

We’re excited to announce the General Availability (GA) of native Regex support in SQL Server 2025 and Azure SQL — a long-awaited capability that brings powerful pattern matching directly into T-SQL.

Apache Hive ™ on Apache Spark ™ has been the preferred engine for ETL workloads at Uber. Hive on Spark supports a wide range of use cases across various verticals like compliance, financial reporting, ...

SQL functions are prewritten actions that can be called on individual cells, multiple cells in a record or multiple records. Using the “Weather” table, we could use the AVG function to calculate the ...