The DBA has control over whether a given chunk or storage space can be grown so the DBA can tell Informix to enforce hard limits on the space used by a particular storage space.

DBA可控制是否可以增长给定块或存储空间，以便DBA告诉Informix对特定存储空间使用的空间执行硬限制。

youdao

For ETFs, he recommends PowerShares DB Agriculture Fund (DBA) and PowerShares DB Base Metals Fund (DBB).

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The name of the fund is the PowerShares DB Agriculture ETF (DBA).

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Another such ETF with low correlation to the market is the PowerShares Agriculture Fund ( DBA), which is an ETF comprised of agricultural commodities.

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