如果我们希望访问这个结构体的第二个元素，就需要在寄存器中的值上加上8。
If you want to access the second member of the structure, you'll need to add 8 to the value in the register.
如果访问级别是MODIFIES SQL DATA，那么它在触发器、动态合成语句、sql体函数中或在创建保存点时会阻塞，并返回原因码为22的错误SQL 30090。
IF it has MODIFIES SQL DATA, it is blocked in triggers, dynamic compound statements, SQL-bodied functions, or when a save point has been created, and error SQL30090 with reason code 22 is returned.
XML允许您访问这些设计元素和文档，可以将它想像成合为一体的应用服务器、Web服务器和数据库引擎。
XML lets you access those design elements and documents. Think of it as your application server, Web server, and database engine rolled into one.
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