的MySQL创建一个表内部联接UNION右连接

Question

以我SQL 5.5：

试图建立一个表，该表是一个INNER的结果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) 

); 

错误：

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 

其他尝试：

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 

可以在任何大师提供一些建议？谢谢。

Answer 1

尝试，而不是执行以下操作：

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

---

从documentation

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

报价

query_expression不应该用括号

被封闭

Answer 2

试试这个

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 
);