According to UDT, we extend the SQL (Structured Query language) in three aspects: data-control language, data-defined language and data-manipulated language.
再根据UDT的形式对SQL语言的数据控制语言、数据定义语言和数据操纵语言进行了扩充。
The database must support at least one clearly defined language that includes functionality for data definition, data manipulation, data integrity, and database transaction control.
数据库必须支持至少一个确切的定义语言包括数据定义，数据操纵，数据完整和数据库事务控制等功能。
The tricky issue, though, is the fact that the PhoneBook application expects the data structures to be defined in COBOL language.
可是不易处理的问题是，应用软件期望这个数据结构用 COBOL 语言来定义。
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