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25 lines
493 B
SQL
25 lines
493 B
SQL
BEGIN TRANSACTION
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INSERT Reading
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(Timestamp, Name, Model, Temperature, Pressure, Humidity, Luminance, GasResistance, ColorTemperature, AirQualityIndex)
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SELECT
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@Timestamp,
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@Name,
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@Model,
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@Temperature,
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@Pressure,
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@Humidity,
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@Luminance,
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@GasResistance,
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@ColorTemperature,
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@AirQualityIndex
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WHERE NOT EXISTS
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(
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SELECT
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1
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FROM
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Reading WITH (UPDLOCK, SERIALIZABLE)
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WHERE Timestamp = @Timestamp AND Name = @Name AND Model = @Model
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)
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COMMIT TRANSACTION |