DB 2 for i 6.1最近的一个增强使得理解在SQL性能监视器中sql语句级使用优化器成为可能。
A recent enhancement to DB2 for I 6.1 makes it possible to understand the optimizer use at the SQL statement level within the SQL Performance Monitor.
使用优化器可以基于PD F中的静态项(标签、行)在表单中创建新交互项(复选框、字段)，并对齐表单中的现有项(标签或字段)。
The optimizers are targeted to create new interactive items (check boxes, fields) on the form based on static items (labels, lines) on the PDF and align existing items (labels or fields) on the form.
当以连接的形式使用in谓词时，优化器将仍会考虑为它检测统计关联。
When the in predicate is used in its join form, the optimizer still considers it for statistical correlation detection.
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