Sir I have this data (MS SQLSERVER 2008 TABLE)

CREATE CURSOR junk(date t,sno n(3))
SET DATE YMD
SET CENTURY on

INSERT INTO junk values({^2019-01-01 01:11:28.000},0)
INSERT INTO junk values({^2019-01-01 03:21:23.000},0)
INSERT INTO junk values({^2019-01-02 05:31:22.000},0)
INSERT INTO junk values({^2019-01-02 15:41:27.000},0)
INSERT INTO junk values({^2019-01-04 17:51:29.000},0)
INSERT INTO junk values({^2019-01-04 21:51:19.000},0)
INSERT INTO junk values({^2019-01-05 02:31:36.000},0)
INSERT INTO junk values({^2019-01-08 05:21:48.000},0)
INSERT INTO junk values({^2019-01-08 00:31:59.000},0)
INSERT INTO junk values({^2019-01-08 18:41:35.000},0)
INSERT INTO junk values({^2019-01-09 10:11:11.000},0)
brow

I want to UPDATE sno column like this



Sno changes when date sequence is changed.
No changes in previous sno if date is going in sequence (no missed date)

Please