我有以下临时表结构:
CREATE TABLE #TempTable (
ID INT,
CId TINYINT,
TagId INT,
Beginning_X DECIMAL(18,5),
Beginning_Y DECIMAL(18,5),
Ending_X DECIMAL(18,5),
Ending_Y DECIMAL(18,5))
INSERT INTO #TempTable (ID, CId, TagId, Beginning_X, Beginning_Y)
SELECT ID, CId,TagId, X, Y
FROM Table_1
WHERE IsRepeat = 1
INSERT INTO #TempTable(Ending_X, Ending_Y)
SELECT X,Y
FROM Table_1 t
WHERE t.ID IN (SELECT ID+1
FROM Table_1
where IsRepeat = 1))
第二个插入删除了第一个插入语句中的所有值,我不知道为什么。我想将第二个插入的结果附加到第一个插入并有一个实心表。
编辑:我想我找到了解决方案:
UPDATE t
SET t.Ending_X = p.X, t.Ending_Y = p.Y
FROM #TempTable t, Table_1 p
WHERE p.ID IN (SELECT ID+1 FROM Table_1 where IsRepeat = 1)
AND p.ID-1 = t.ID