我正在尝试在一个表值函数中使用临时表,但似乎无法实现。是否有其他方法可以在表值函数中使用临时表?
当前的代码:
CREATE FUNCTION dbo.fnt_AllChildren (@ParentName VARCHAR(255))
RETURNS @return_variable TABLE
(
Id INT,
Name VARCHAR(255),
ParentId INT,
ParentName VARCHAR(255)
)
AS
BEGIN
CREATE TABLE #Child (Id INT, Name VARCHAR(255), ParentId INT, ParentName VARCHAR(255))
CREATE TABLE #Parent (Id INT, Name VARCHAR(255), ParentId INT, ParentName VARCHAR(255))
INSERT #Child (Id, Name, ParentId, ParentName)
SELECT child.Id, child.Name, child.ParentId, parent.Name
FROM dbo.t_mytable child
INNER JOIN dbo.t_mytable parent ON child.ParentId = parent.Id
WHERE parent.Name = @ParentName
WHILE (@@ROWCOUNT > 0)
BEGIN
INSERT INTO @return_variable
SELECT * FROM #Child
DELETE FROM#Parent
INSERT INTO #Parent
SELECT * FROM #Child
DELETE FROM #Child
INSERT INTO #Child (Id, Name, ParentId, ParentName)
SELECT child.Id, child.Name, child.ParentId, parent.Name
FROM dbo.t_mytable child
INNER JOIN #Parent parent ON child.ParentId = parent.Id
END
RETURN
END
GO