A parameter query is a great way to ask a question and display the answer, particularly when the question is one where you often change the criteria.
带有参数的查询非常适用于问题的查询和答案的显示，特别是需要经常变更查询条件的情况下。
In addition, it discusses the role of the optimizer, including the OPTCOMPIND parameter, query directives, and internal statistics.
此外，还将讨论优化器的角色，其中包括OPTCOMPIND参数、查询命令和内部统计数据。
In addition, it discusses the role of the optimizer, including the OPTCOMPIND parameter, query directives, and internal statistics.
此外，还将讨论优化器的角色，其中包括OPTCOMPIND参数、查询命令和内部统计数据。
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