The underlying problem is that DB2 processes recursion by essentially producing one level of recursion at a time (breadth first), while Oracle uses depth first.

在底层，DB2 处理递归时采用的方法是逐层递归（广度优先），而 Oracle 采用的是深度优先的方法。

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This consistency has established the California wine industry as the global leader in producing quality wines that offer the highest level of depth, complexity, and balance.

这种具有始终如一的优良品质奠定了加州的红酒业，并成为世界上具有深度、广度、平衡度的高度水平红酒生产领跑者。

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Shallow gas formations are of the characteristics of shallow burial depth, low compaction degree, unconsolidated cementation, easy sand producing etc.

浅气层具有埋藏浅、压实程度低、胶结疏松、生产时容易出砂的特点。

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Then he covers every top whisky producing country in depth, especially Scotland, which he breaks into no less than 16 single malt regions, plus blended Scotches, then Ireland (whiskey), Japan, Canada, the US, Europe, South Africa, India, and Australia.

FORBES: The Best Whisky Book Ever - A Must Read For Drinkers!

In 1985, Mr. Gauby inherited his grandfather's vines, and since then has busily set about expanding the estate and producing wines of remarkable depth and flavor.

WSJ: Will Lyons on Wine: The Wild Beauty of France's Roussillon and Its Wines

These are enviable conditions for ripening Cabernet Sauvignon-producing wines with a strong depth of color, good tannic structure, power and suppleness.

WSJ: Will Lyons on Wine: Journeying Into the Heart of Bordeaux