SQL Server

Get Current Date/Time from NIST Time Server

See more Socket/SSL/TLS Examples

Demonstrates using Chilkat Socket to connect to an NIST time server and (using the old Time Protocol (RFC 868)), will read the current GMT time.

Note: This is not necessarily the very best means for getting the current date/time. The most commonly used time protocol is the Network Time Protocol (RFC-1305).

SQL Server

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @socket int
    EXEC @hr = sp_OACreate 'Chilkat.Socket', @socket OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Connect to an NIST time server and read the current date/time
    DECLARE @maxWaitMs int
    SELECT @maxWaitMs = 4000
    DECLARE @useTls int
    SELECT @useTls = 0
    EXEC sp_OAMethod @socket, 'Connect', @success OUT, 'time-c.nist.gov', 37, @useTls, @maxWaitMs
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @socket, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @socket
        RETURN
      END

    -- The time server will send a big-endian 32-bit integer representing
    -- the number of seconds since since 00:00 (midnight) 1 January 1900 GMT.
    -- The ReceiveInt32 method will receive a 4-byte integer, but returns
    -- 1 or 0 to indicate success.  If successful, the integer
    -- is obtained via the ReceivedInt property.
    DECLARE @bigEndian int
    SELECT @bigEndian = 1
    EXEC sp_OAMethod @socket, 'ReceiveInt32', @success OUT, @bigEndian
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @socket, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @socket
        RETURN
      END

    DECLARE @dt int
    EXEC @hr = sp_OACreate 'Chilkat.CkDateTime', @dt OUT

    EXEC sp_OAGetProperty @socket, 'ReceivedInt', @iTmp0 OUT
    EXEC sp_OAMethod @dt, 'SetFromNtpTime', @success OUT, @iTmp0

    -- Show the current local date/time
    DECLARE @bLocalTime int
    SELECT @bLocalTime = 1

    EXEC sp_OAMethod @dt, 'GetAsRfc822', @sTmp0 OUT, @bLocalTime
    PRINT 'Current local date/time: ' + @sTmp0

    SELECT @maxWaitMs = 10
    EXEC sp_OAMethod @socket, 'Close', @success OUT, @maxWaitMs

    EXEC @hr = sp_OADestroy @socket
    EXEC @hr = sp_OADestroy @dt


END
GO