What this means is that developers are free to declare variables and parameters of these types.
这就是说，开发人员可以自由地声明这些类型的变量和参数。
One new feature of XSLT v2 is the ability to provide an explicit data type for your variables and parameters.
XSLTv2的新特性之一就是为您的变量和参数提供显式数据类型的能力。
Taking into account any host variables and parameters used, to preview result sets, and to auto-rollback any side effects that the execution of SQL statements may cause.
运行sql语句时，将考虑所使用的全部主机变量和参数，以预览结果集，并自动回滚执行sql语句导致的副作用。
These statements also define the kinds of variables and parameters the programmer can choose and the type of value that the code will return when an expression accesses the procedure or function.
这些语句也规定程序员可以选择的变量与参数种类，以及当一个表达式使用过程或函数时代码将返回的值的类型。
Options, variables, and parameters: Too much seems to be going on with options, variables, and parameters.
选项、变量和参数：处理过程涉及的选项、变量和参数太多了。
Options, variables, and parameters: Too much seems to be going on with options, variables, and parameters.
选项、变量和参数：处理过程涉及的选项、变量和参数太多了。
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