According to the SQL Standard, the method to evaluate hierarchical or bi-directional data is the Recursive Common Table Expression (RCTE).

根据SQL标准，评估分层或双向数据的方法为递归通用表表达式(RCTE)。

youdao

In addition, by using an industry standard "star schema", rather than a more normalized table structure, the data warehouse is optimized for efficient queries and quick response times.

此外，通过使用行业标准的“星型模式”(star schema)而不是更规范化的表结构，数据仓库经过了优化以实现高效的查询和快速的响应时间。

youdao

Table 2 defines the standard data types of the Linux kernel.

表2定义了Linux内核的标准数据类型。

youdao