PostgreSQL string and date functions make data cleaning, transformation, and analysis much easier by providing built in commands for common tasks. UPPER and LOWER standardize text, LENGTH counts ...
本内容遵循CC 4.0 BY-SA版权协议 PostgreSQL 作为最强大的开源关系型数据库之一，其内置的 PL/pgSQL 语言为数据库开发提供了完整的编程能力。我在实际项目中多次使用 PL/pgSQL 开发复杂业务逻辑 ...
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