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The primary key column is often set to auto-increment when constructing a SQL Server database. To achieve this, the IDENTITY property is enabled on the primary key column. The starting value and ...

100% pure SQL schema file Diff visualization between a schema file and actual database schemas Automatic generation and execution of ALTER statements to apply the schema No need to "import" redundant ...

本篇主要介绍 MySQL 的函数索引（也叫表达式索引）。 通常来讲，索引都是基于字段本身或者字段前缀（第 20 篇），而函数索引是基于字段本身加上函数、操作符、表达式等计算而来。如果将表达式或者操作符也看做函数的话，简单来说，这样的索引就可以统称 ...

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SQLite is a powerful, embedded relational database management system in a compact C library, developed by D. Richard Hipp. It offers support for a large subset of SQL92, multiple tables and indexes, ...