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Improve doc
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@@ -392,6 +392,9 @@ impl Connection {
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/// If the query returns more than one row, all rows except the first are
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/// ignored.
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///
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/// Returns `Err(QueryReturnedNoRows)` if no results are returned. If the query truly is optional,
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/// you can call `.optional()` on the result of this to get a `Result<Option<T>>`.
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///
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/// # Failure
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///
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/// Will return `Err` if `sql` cannot be converted to a C-compatible string
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@@ -412,6 +415,9 @@ impl Connection {
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/// If the query returns more than one row, all rows except the first are
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/// ignored.
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///
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/// Returns `Err(QueryReturnedNoRows)` if no results are returned. If the query truly is optional,
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/// you can call `.optional()` on the result of this to get a `Result<Option<T>>`.
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///
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/// # Failure
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///
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/// Will return `Err` if `sql` cannot be converted to a C-compatible string
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@@ -377,6 +377,9 @@ impl<'conn> Statement<'conn> {
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/// If the query returns more than one row, all rows except the first are
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/// ignored.
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///
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/// Returns `Err(QueryReturnedNoRows)` if no results are returned. If the query truly is optional,
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/// you can call `.optional()` on the result of this to get a `Result<Option<T>>`.
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///
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/// # Failure
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///
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/// Will return `Err` if the underlying SQLite call fails.
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