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You work with a database named DB1, which is located on a SQL Server 2005 computer. You discover that a table scan on Table1 in DB1 causes a slow query. Table1 is a very large table that is used frequently. You ascertain that the query contains the following statement. SELECT col1, col2 FROM table1 WHERE col3 = You need to provide maximum query performance. Table1 must remain available to users. What should you do?()
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采用售价金额核算法核算库存商品时,期末结存商品的实际成本为本期商品销售收入乘以商品进销差价率。
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随着以太网技术的发展,以太网在原有的共享型方式基础之上相继出现了()模式工作。
目标:行动( )
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民族具有的特征是:()
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