... show tables; 查看找开数据库中所有数据表 describe tableName; 查询表结构 create table 表名(字段设定表); 创建表 ...
基于36个网页-相关网页
为了支持类似哈希表的数据结构和像分组这样的查询操作，由LINQ创建的匿名类型必须提供稳定的哈希码。
In order to support data structures like hash tables and query operations like grouping, anonymous types created by LINQ must provide stable hash codes.
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。
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.
你可以浏览数据库的表及其结构、在带有语法高亮的编辑器中编写SQL查询、运行查询并浏览结果。
Then you can browse the database tables, their structures, write SQL queries inside of an editor with syntax coloring, run the queries and browse results.
应用推荐