怎么计算两个阴历日期相距的天数

如何计算两个阴历日期相距的天数?
此时知道的就是 两个阴历的日期,要求计算他们相距的天数?
注意!!!:此时不知道他们的阳历日期
本人在做一个指定阴历转成阳历的程序.现在通过函数已经知道了当前的阴历了.指定一个,哪么就是知道了两个阴历的日期,
我想通过相距阴历的天数 再用 阳历 找到阴历对应该的阳历日期.

------解决方案--------------------
datediff
CREATE TABLE SolarData
(
yearId int not null,
data char(7) not null,
dataInt int not null
)
--插入数据
INSERT INTO 
SolarData SELECT 1900,'0x04bd8',19416 UNION ALL SELECT 1901,'0x04ae0',19168
UNION ALL SELECT 1902,'0x0a570',42352 UNION ALL SELECT 1903,'0x054d5',21717
UNION ALL SELECT 1904,'0x0d260',53856 UNION ALL SELECT 1905,'0x0d950',55632
UNION ALL SELECT 1906,'0x16554',91476 UNION ALL SELECT 1907,'0x056a0',22176
UNION ALL SELECT 1908,'0x09ad0',39632 UNION ALL SELECT 1909,'0x055d2',21970
UNION ALL SELECT 1910,'0x04ae0',19168 UNION ALL SELECT 1911,'0x0a5b6',42422
UNION ALL SELECT 1912,'0x0a4d0',42192 UNION ALL SELECT 1913,'0x0d250',53840
UNION ALL SELECT 1914,'0x1d255',119381 UNION ALL SELECT 1915,'0x0b540',46400
UNION ALL SELECT 1916,'0x0d6a0',54944 UNION ALL SELECT 1917,'0x0ada2',44450
UNION ALL SELECT 1918,'0x095b0',38320 UNION ALL SELECT 1919,'0x14977',84343
UNION ALL SELECT 1920,'0x04970',18800 UNION ALL SELECT 1921,'0x0a4b0',42160
UNION ALL SELECT 1922,'0x0b4b5',46261 UNION ALL SELECT 1923,'0x06a50',27216
UNION ALL SELECT 1924,'0x06d40',27968 UNION ALL SELECT 1925,'0x1ab54',109396
UNION ALL SELECT 1926,'0x02b60',11104 UNION ALL SELECT 1927,'0x09570',38256
UNION ALL SELECT 1928,'0x052f2',21234 UNION ALL SELECT 1929,'0x04970',18800
UNION ALL SELECT 1930,'0x06566',25958 UNION ALL SELECT 1931,'0x0d4a0',54432
UNION ALL SELECT 1932,'0x0ea50',59984 UNION ALL SELECT 1933,'0x06e95',28309
UNION ALL SELECT 1934,'0x05ad0',23248 UNION ALL SELECT 1935,'0x02b60',11104
UNION ALL SELECT 1936,'0x186e3',100067 UNION ALL SELECT 1937,'0x092e0',37600
UNION ALL SELECT 1938,'0x1c8d7',116951 UNION ALL SELECT 1939,'0x0c950',51536
UNION ALL SELECT 1940,'0x0d4a0',54432 UNION ALL SELECT 1941,'0x1d8a6',120998
UNION ALL SELECT 1942,'0x0b550',46416 UNION ALL SELECT 1943,'0x056a0',22176
UNION ALL SELECT 1944,'0x1a5b4',107956 UNION ALL SELECT 1945,'0x025d0',9680
UNION ALL SELECT 1946,'0x092d0',37584 UNION ALL SELECT 1947,'0x0d2b2',53938
UNION ALL SELECT 1948,'0x0a950',43344 UNION ALL SELECT 1949,'0x0b557',46423
UNION ALL SELECT 1950,'0x06ca0',27808 UNION ALL SELECT 1951,'0x0b550',46416
UNION ALL SELECT 1952,'0x15355',86869 UNION ALL SELECT 1953,'0x04da0',19872
UNION ALL SELECT 1954,'0x0a5d0',42448 UNION ALL SELECT 1955,'0x14573',83315
UNION ALL SELECT 1956,'0x052d0',21200 UNION ALL SELECT 1957,'0x0a9a8',43432
UNION ALL SELECT 1958,'0x0e950',59728 UNION ALL SELECT 1959,'0x06aa0',27296
UNION ALL SELECT 1960,'0x0aea6',44710 UNION ALL SELECT 1961,'0x0ab50',43856
UNION ALL SELECT 1962,'0x04b60',19296 UNION ALL SELECT 1963,'0x0aae4',43748
UNION ALL SELECT 1964,'0x0a570',42352 UNION ALL SELECT 1965,'0x05260',21088
UNION ALL SELECT 1966,'0x0f263',62051 UNION ALL SELECT 1967,'0x0d950',55632
UNION ALL SELECT 1968,'0x05b57',23383 UNION ALL SELECT 1969,'0x056a0',22176
UNION ALL SELECT 1970,'0x096d0',38608 UNION ALL SELECT 1971,'0x04dd5',19925
UNION ALL SELECT 1972,'0x04ad0',19152 UNION ALL SELECT 1973,'0x0a4d0',42192
UNION ALL SELECT 1974,'0x0d4d4',54484 UNION ALL SELECT 1975,'0x0d250',53840
UNION ALL SELECT 1976,'0x0d558',54616 UNION ALL SELECT 1977,'0x0b540',46400
UNION ALL SELECT 1978,'0x0b5a0',46496 UNION ALL SELECT 1979,'0x195a6',103846
UNION ALL SELECT 1980,'0x095b0',38320 UNION ALL SELECT 1981,'0x049b0',18864
UNION ALL SELECT 1982,'0x0a974',43380 UNION ALL SELECT 1983,'0x0a4b0',42160
UNION ALL SELECT 1984,'0x0b27a',45690 UNION ALL SELECT 1985,'0x06a50',27216
UNION ALL SELECT 1986,'0x06d40',27968 UNION ALL SELECT 1987,'0x0af46',44870
UNION ALL SELECT 1988,'0x0ab60',43872 UNION ALL SELECT 1989,'0x09570',38256