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Overview
SQL Methods support a number of specialized tags for inserting values or comparisons into SQL source. These tags provide a number of advantages:
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SQL Templates are simpler and clearer,
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Values are type-checked to make sure that the data are at least syntactically valid,
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Single quotes in string values are quoted by doubling them,
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When doing comparisons in selections, multiple input values can be automatically rendered using the SQL in test.
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When doing comparisons in selections, inputs may be optional.
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