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PostgreSQL字符切割:substring函数的用法说明
这篇文章主要介绍了PostgreSQL字符切割:substring函数的用法说明,具有很好的参考价值,希望对大家有所帮助。一起跟随小编过来看看吧 作为当前最强大的开源数据库,Postgresql(以下简称pg)对字符的处理也是最为强大的,首先他也有substr,trim等其他数据库都有的 ...
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