榜单
服务器优惠
IT文库
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Engine Configuration
Engine Configuration Supported Databases Database Urls PostgreSQL MySQL Oracle Microsoft SQL Server SQLite Others Engine Creation API Pooling Custom DBAPI connect() argum... -
CREATE FUNCTION
Synopsis Description Parameters Notes Examples Compatibility See Also Defines a new function. Synopsis CREATE [ OR REPLACE ] FUNCTION <name> ( [ [< arg... -
Frequently Asked Questions
Frequently Asked Questions Frequently Asked Questions How do I create an AUTOINCREMENT field? What datatypes does SQLite support? SQLite lets me insert a string into a datab... -
Databases
Databases General notes Persistent connections Connection management Caveats Encoding PostgreSQL notes PostgreSQL connection settings Optimizing PostgreSQL's configuration I... -
PgSQL · 新特性解读 · undo log 存储接口（上）
背景 物理存储结构 共享内存结构 undo log 空间申请 undo log 的清理 undo log 的读写 总结 背景 PostgreSQL 数据库通过采用保存旧的元组来实现MVCC 机制，这就容易造成数据的膨胀。数据的膨胀不仅增加了存储的空间，而且可能降低查询的性能。为了解决这个问题，PostgreSQL 开源社区进行了一系列的讨论... -
CREATE FUNCTION
Synopsis Description Parameters Notes Examples Compatibility See Also Defines a new function. Synopsis CREATE [ OR REPLACE ] FUNCTION <name> ( [ [< arg... -
Databases
Databases General notes Persistent connections Connection management Caveats Encoding PostgreSQL notes PostgreSQL connection settings Optimizing PostgreSQL's configuration I... -
Databases
Databases General notes Persistent connections Connection management Caveats Encoding PostgreSQL notes PostgreSQL connection settings Optimizing PostgreSQL's configuration I... -
杂项
杂项 使用短助记符 警告成功的 SQL 注入检测 为问题设置答案 发现 SQL 注入时发出“哔”声 清除 DBMS（Database Management System，数据库管理系统）中特定的 sqlmap UDF(s) 和表 检查依赖关系 禁用控制台输出着色 使用特定页码的 Google dork 结果 使用 HTTP 参数污染 针对 ... -
Databases
Databases General notes Persistent connections Connection management Caveats Encoding PostgreSQL notes PostgreSQL connection settings Optimizing PostgreSQL’s configuration I...