SQLJ can perform syntactic and semantic checking on the code, using database connections at compile time.
SQLJ可以通过在编译时使用数据库连接,对代码执行语法和语义上的检查。
Indeed, the time to fetch information from a repository — be it a file or database server — far exceeds the lapse required to compile and perhaps even execute a PHP program.
实际上,用于从存储库(文件或数据库服务器)中获取信息的时间远高于编译并且甚至是执行PHP程序所需耗费的时间。
When the query is prepared, the database will analyze, compile and optimize it's plan for executing the query.
当查询准备好后,数据库将分析、编译和优化执行该查询的计划。
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