该节点可以从特定的数据库行查找指定列值的集合。
This node can lookup a collection of named column values from a located database row.
第126到146行通过适当调用“添加”、“查找”和“关闭”函数来对用户操作作出反应。
Lines 126 to 146 react to user actions, calling the add, find, and close functions, as appropriate.
数据库管理器通过查看应用程序的锁列表并查找行锁最多的表，来决定对哪些锁进行升级。
The database manager determines which locks to escalate by looking through the lock list for the application and finding the table with the most row locks.
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