标签 PostgreSQL , trigger , row , statement , before , after , s_lock 背景数据库触发器的触发时机，性能，高并发批量导入时，触发器的性能如何？批量导入时，before, after触发器在for each row模式下，触发机制如何，什么时候开始条到触发器指定的function中进行运算？ 1、before for each...

文章 2022-02-15 来自：开发者社区

《卸甲笔记》-PostgreSQL和Oracle的SQL差异分析之五：函数的差异(七)

PostgreSQL是世界上功能最强大的开源数据库，在国内得到了越来越多机构和开发者的青睐和应用。随着PostgreSQL的应用越来越广泛，Oracle向PostgreSQL数据库的数据迁移需求也越来越多。数据库之间数据迁移的时候，首先是迁移数据，然后就是SQL、存储过程、序列等程序中不同的数据库中数据的使用方式的转换。下面根据自己的理解和测试，写了一些SQL以及数据库对象转换方面的文章，不足之....

文章 2022-02-15 来自：开发者社区

《卸甲笔记》-PostgreSQL和Oracle的SQL差异分析之四：特殊字符和符号

文章 2022-02-15 来自：开发者社区

《卸甲笔记》-PostgreSQL和Oracle的SQL差异分析之三：rownum和聚合函数

文章 2022-02-15 来自：开发者社区

《卸甲笔记》-PostgreSQL和Oracle的SQL差异分析之二：序列的使用

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