SQL如何将3条语句结果合并为一条结果

Question

SQL Server管理工作室 -

如何在while循环中合并？

PARENTID是迈向childID的

一个内部关系

WHILE EXISTS (SELECT ParentID FROM Table1) 
    BEGIN 
     SELECT * FROM FinalTable WHERE FinalTableID = (SELECT c.ChildID FROM Table1 as c WHERE c.ChildID = (SELECT d.ChildID FROM Table1 as d WHERE d.ChildID = @MyCounter)) 
     IF(SELECT e.ParentID FROM Table1 as e WHERE e.ChildID = @MyCounter) IS NULL 
     BREAK 
     ELSE 
     SET @MyCounter = (SELECT d.ParentID FROM Table1 as d WHERE d.ChildID = @MyCounter) 
     CONTINUE 
    END 

此代码目前导致多行集合包含不同的结果，是有可能的一切合并成一个完整的结果？

FinalTable 
------------------------------- 
|  ID Name Text ChildID 
| 1 1 Foo1 Bar1 1 
| 2 2 oof1 Bra1 1 
| 3 3 ofo1 Rab1 1 
-------------------------------- 

---

FinalTable 
-------------------- 
|  ID Row2 Row3 ChildID 
| 1 8 Foo2 Bar2 2 
| 2 9 oof2 Bra2 2 
| 3 10 ofo2 Rab2 2 
-------------------- 

---

FinalTable 
-------------------- 
|  ID Name Text ChildID 
| 1 14 Foo3 Bar3 3 
| 2 17 oof3 Bra3 3 
| 3 19 ofo3 Rab3 3 
-------------------- 

通缉的结果：

FinalTable 
-------------------- 
|  ID Name Text ChildID 
| 1 1 Foo1 Bar1 1 
| 2 2 oof1 Bra1 1 
| 3 3 ofo1 Rab1 1 
| 4 8 Foo2 Bar2 2 
| 5 9 oof2 Bra2 2 
| 6 10 ofo2 Rab2 2 
| 7 14 Foo3 Bar3 3 
| 8 17 oof3 Bra3 3 
| 9 19 ofo3 Rab3 3 
-------------------- 

Answer 1

您可以使用一个临时表，并追加到它

CREATE TABLE #FinalTable() -- should be same structure of FinalTable 
WHILE EXISTS (SELECT ParentID FROM Table1) 
    BEGIN 
     INSERT INTO #FinalTable 
     SELECT * FROM FinalTable WHERE FinalTableID = (SELECT c.ChildID FROM Table1 as c WHERE c.ChildID = (SELECT d.ChildID FROM Table1 as d WHERE d.ChildID = @MyCounter)) 
     IF(SELECT e.ParentID FROM Table1 as e WHERE e.ChildID = @MyCounter) IS NULL 
     BREAK 
     ELSE 
     SET @MyCounter = (SELECT d.ParentID FROM Table1 as d WHERE d.ChildID = @MyCounter) 
     CONTINUE 
    END