qbe

qbe

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• 網絡昆士蘭保險集團；示例查詢(Query By Example)；按例查詢

例句

This also points out a limitation of the QBE approach -- zero cannot effectively be used as a value to search on.

（這同樣指出了QBE方法的一個缺點——不能夠有效地使用0作為搜索值）。

A QBE approach would fail pretty badly for these types of queries because QBE does equality matches, not comparison.

QBE方法對于這類查詢無能為力，因為QBE只能執行相等匹配，而無法進行比較查詢。

I demonstrated data retrieval using db4o's QBE engine last time, but I'll quickly recap here.

上一次我使用了db4o的QBE引擎演示了數據檢索，這里將快速回顧一下。

The user should only enter criteria against fields that are already in the QBE.

用戶應該只針對QBE中已有的字段輸入判據。

Last month, I talked about querying db4o using both native and QBE-style queries.

上個月，我談到了使用原生和QBE樣式的查詢來查詢db4o。

Extend the QBE API to include predicates.

擴展QBEAPI以包含謂詞。

Insets a column into the QBE grid.

在查詢設計視圖中插入列。

The second option pollutes the simplicity of the QBE approach and leads to monstrosities like the one shown in Listing 9

第二種方法破壞了QBE方法的簡單性，并且導致了如清單9所示的糟糕代碼

What is apparent from Listing 7, however, is that its usage is arguably not much simpler than the basic QBE version shown already

然而，可以從清單7中很明顯地看到，這種用法并沒有比基本的QBE版本簡單多少。