我找到了做我想要的准确的方法,这要归功于 FOR XML
条款:
SELECT T1.field1,
T1.field2,
T1.field2,
T1.field3,
CASE WHEN T1.field4 = 'some-value' THEN 1 ELSE 0 END,
T2.field1,
T3.field1,
T4.field1
INTO #tmp
FROM T1
INNER JOIN T2 ON T2.pk = T2.fk
INNER JOIN T3 ON T3.pk = T2.fk
INNER JOIN T4 ON T4.pk = T2.fk;
-- get all columns from the query, plus a hash of the row (converted in an hex string)
SELECT T.*, CONVERT(VARCHAR(100), HASHBYTES('sha1', (SELECT T.* FOR XML RAW)), 2) AS sHash
FROM #tmp AS T;