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A filter is a conditional expression that is used to select rows.
过滤器是一个条件表达式,用于选择行。
Listing 1 shows the conditional expression that ensures the deposit is positive.
清单1显示了确保存款为正数的条件表达式。
In addition, code assist is available when typing in the conditional expression.
除此之外,在输入条件表达式时,也可以使用代码帮助。
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