A probe scan is used to directly look up rows in an index or base table.

探测扫描用于直接在索引或基表中查找行。

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Number of probe scans. A probe scan is used to directly look up rows in an index or base table.

探测扫描的数目。探测扫描用于直接在索引或基表中查找行。

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Since Query 1 expresses the join predicate on the books table, DB2 9.1 and 9.5 perform a table scan on authors and then use the index AUTHORIDX1 to probe into the books table.

由于查询1表达了books表中的连接谓词，所以DB 2 9.1和9.5执行一个扫描authors的表，然后使用索引authoridx 1查找books表。

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The quick scan time and narrow probe head tip, also offer the possibility for a full body scan of multiple suspicious lesions in a single patient appointment.

FORBES: Early detection is your best defense.

Is a probe more serious than a scan, etc.? Finally, once properly defined, those whose job it is to explain the threat to politicians and citizens should be precise in their use of these terms.

FORBES: Just How Big Is The Cyber Threat To The Department Of Defense?