关键值 key value
- 优化器将根据行中列的函数依赖性来推断关键值选择。
The optimizer will deduce key value selection based on the functional dependency of the column within the row. - 为检索条目信息,通常考虑把整列 ID 或关键值作为输入,而不是单一的 ID 或关键值作为输入。
For retrieving item information, always think about lists of IDs or key values as input, not single IDs or key values. - 该层从请求中提取关键值,请求将会传递到处理层,后者用于检索 XML 文件中相关的测试数据。
This layer extracts key values provided in the request that will be passed to the process layer responsible for retrieving the associated test data XML files.
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