sqlserver avoids full table scan - Code World

sqlserver avoids full table scan

News 2023-09-21 01:40:42 views: null

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Origin blog.csdn.net/weixin_49543015/article/details/131399355

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If the subquery does not specify a table, it will match in its own table by default. If the condition field is not found, it will report that there is no such field. If it exists, it will perform a full table scan.

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