This new DELETE algorithm in DB2 V8.2.2 can drastically reduce the logging and processing associated with the deletion of rows in an MDC table and its corresponding block indexes.
DB 2 V8.2.2中这种新的DELETE算法可以显著减少与mdc表中行及其相应的块索引的删除相关的日志记录和处理。
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To avoid dangling Pointers (the dangerous situation where a block of memory is freed but a pointer still references it), you must delete the object only after the last reference is released.
Delete important information or destroy data, improve system security, the password does not meet the requirements of computer networking in the block after repeated warnings.