Alerts

Returns severe weather alert information from Weather Underground using SQL Server

Prerequisites:

See SQLHTTP easy setup for Weather Underground
See API Call documentation for parameter values and other information

Sample Usage:


DECLARE @Response nvarchar(MAX)
DECLARE @StatusCode int
DECLARE @StatusDescription nvarchar(MAX)

EXEC usp_WeatherUnderground_Fetch	@Type = 'alerts',
					@ZipCode = '50303', --enter zip code
					@Response = @Response OUTPUT, 
					@StatusCode = @StatusCode OUTPUT, 
					@StatusDescription = @StatusDescription OUTPUT

IF @StatusCode >= 400
	EXEC SQLHTTP.net.RaiseHttpError @StatusCode, @StatusDescription, @Response
ELSE
	BEGIN
		DECLARE @X xml
		SET @X = SQLHTTP.net.Json_To_Xml(@Response, '0')

		--The XPath syntax below was easily generated by executing the following commands:
		--EXEC SQLHTTP.net.XQueryHelper @X
		--and then executing: 
		--EXEC SQLHTTP.net.XQueryHelper @X, 'JsonObject/alerts[1]/JsonObject' --

		SELECT   SQLHTTP.net.UnixTime_To_DateTime2(T.C.value(N'@date_epoch', N'nvarchar(MAX)')) AS [date]
			,T.C.value(N'@description', N'nvarchar(MAX)') AS [description]
			,SQLHTTP.net.UnixTime_To_DateTime2(T.C.value(N'@expires_epoch', N'nvarchar(MAX)')) AS [expires]
			,T.C.value(N'@message', N'nvarchar(MAX)') AS [message]
		FROM @X.nodes(N'/JsonObject/alerts[1]/JsonObject') T(C)
	END

DECLARE @Response nvarchar(MAX)

DECLARE @StatusCode int

DECLARE @StatusDescription nvarchar(MAX)

EXEC usp_WeatherUnderground_Fetch @Type = 'alerts',

@ZipCode = '50303', --enter zip code

@Response = @Response OUTPUT,

@StatusCode = @StatusCode OUTPUT,

@StatusDescription = @StatusDescription OUTPUT

IF @StatusCode >= 400

EXEC SQLHTTP.net.RaiseHttpError @StatusCode, @StatusDescription, @Response

ELSE

BEGIN

DECLARE @X xml

SET @X = SQLHTTP.net.Json_To_Xml(@Response, '0')

--The XPath syntax below was easily generated by executing the following commands:

--EXEC SQLHTTP.net.XQueryHelper @X

--and then executing:

--EXEC SQLHTTP.net.XQueryHelper @X, 'JsonObject/alerts[1]/JsonObject' --

SELECT SQLHTTP.net.UnixTime_To_DateTime2(T.C.value(N'@date_epoch', N'nvarchar(MAX)')) AS [date]

,T.C.value(N'@description', N'nvarchar(MAX)') AS [description]

,SQLHTTP.net.UnixTime_To_DateTime2(T.C.value(N'@expires_epoch', N'nvarchar(MAX)')) AS [expires]

,T.C.value(N'@message', N'nvarchar(MAX)') AS [message]

FROM @X.nodes(N'/JsonObject/alerts[1]/JsonObject') T(C)

END

date description expires message

----------------------------- -------------------- ---------------------------- -----------------------

2017-11-18 01:39:00.0000000 Dense Fog Advisory 2017-11-18 06:00:00.0000000 \n...Dense fog advis...

2017-11-18 00:04:00.0000000 Special Statement 2017-11-18 03:00:00.0000000 \n...Expect fog to p...

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