的MySQL創建一個表內部聯接UNION右連接

Question

以我SQL 5.5：

試圖建立一個表，該表是一個INNER的結果JOIN表的& B，和（UNION）RIGHT JOIN表的ç& B.

CREATE TABLE IF NOT EXISTS TABLE_NAME AS (

(SELECT a.column1, b.column2 FROM TABLEA AS a 

INNER JOIN TABLEB AS b 

ON a.column1 = b.column1) 

UNION 

(SELECT c.column1, b.column2 FROM TABLEC AS c 

RIGHT JOIN TABLEB AS b 

ON b.column1 = c.column1) 

); 

錯誤：

ERROR 1064 (42000) at line 11: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(SELECT a.column1, b.column2 FROM TABLEA AS a 

其他嘗試：

CREATE TABLE IF NOT EXISTS TABLE_NAME AS (

(SELECT a.column1, b.column2 FROM TABLEA AS a 

INNER JOIN TABLEB AS b 

ON a.column1 = b.column1) 

UNION 

(SELECT c.column1, b.column2 FROM TABLEC AS c 

RIGHT JOIN TABLEB AS b 

ON b.column1 = c.column1) 

); 

Error: 

ERROR 1064 (42000) at line 11: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UNION 

可以在任何大師提供一些建議？謝謝。

Answer 1

嘗試，而不是執行以下操作：

CREATE TABLE IF NOT EXISTS TABLE_NAME AS 

(SELECT a.column1, b.column2 FROM TABLEA AS a 

INNER JOIN TABLEB AS b 

ON a.column1 = b.column1) 

UNION 

(SELECT c.column1, b.column2 FROM TABLEC AS c 

RIGHT JOIN TABLEB AS b 

ON b.column1 = c.column1) 

See Demo

---

從documentation

CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name 
    [(create_definition,...)] 
    [table_options] 
    [partition_options] 
    [IGNORE | REPLACE] 
    [AS] query_expression 

報價

query_expression不應該用括號

被封閉

Answer 2

試試這個

CREATE TABLE IF NOT EXISTS TABLE_NAME AS 
(
SELECT S.* 
FROM 
(
SELECT a.column1, b.column2 FROM TABLEA AS a 
INNER JOIN TABLEB AS b ON a.column1 = b.column1 
UNION 
SELECT c.column1, b.column2 FROM TABLEC AS c 
RIGHT JOIN TABLEB AS b ON b.column1 = c.column1 
) S 
);