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Be sure to work with your DBA to ensure that statistics are accumulated at the right time.
一定要与您的 DBA 一起工作以确保在适当的时候积累统计信息。
Database administrator (DBA).
数据库管理员(DBA)。
For ETFs, he recommends PowerShares DB Agriculture Fund (DBA) and PowerShares DB Base Metals Fund (DBB).
FORBES: 5 Market Predictions for 2012
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.
FORBES: 2 Strong ETFs in a Weak Market
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