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南大通用GBase 8s数据库RENAME系列语句介绍（三）

南大通用GBase 8s数据库使用 RENAME INDEX 语句来更改现有的索引的名称。 用法 如果您是该索引的所有者或有对该数据库的 DBA 权限，则可重命名索引。 当您重命名索引时，数据库服务器更改 sysindexes、sysconstraints、sysobjstate 和 sysfragments系统目录表中的索引名称。
IEEE

Hierarchical optical path network design algorithm considering waveband add/drop ratio ...

Abstract: We investigate the relation between waveband add/drop ratio and switch size for hierarchical optical path cross-connects. We then propose a design algorithm for hierarchical optical path ...
appuals.com

Creating Clustered and Non-Clustered Indexes in SQL Server

In a SQL Server, two types of indexes exist; Clustered and non-clustered indexes. Both clustered indexes and non-clustered indexes have the same physical structure. Moreover, both of them are stored ...
Hacker

Unleash Brings Strategy Constraints to OSS Users

Unleash is an open-source feature management platform. Ship code to production in small batches and increase efficiency. Unleash is an open-source feature management platform. Ship code to production ...
GitHub

Error on ALTER TABLE ... USING INDEX with EXCLUDE CONSTRAINT

There's an issue with method of concurrently index creation that fails to create proper EXCLUDE CONSTRAINS with ALTER TABLE ... ADD CONSTRAIND ... USING INDEX. As stated in the PostgreSQL docs: ADD ...