24 lines
799 B
MySQL
24 lines
799 B
MySQL
|
-- https://dev.mysql.com/doc/refman/8.0/en/union.html
|
||
|
|
|
||
|
|
/* query_expression_body UNION [ALL | DISTINCT] query_block
|
||
|
|
[UNION [ALL | DISTINCT] query_expression_body]
|
||
|
|
[...]
|
||
|
|
|
||
|
|
query_expression_body setOperations.sql */
|
||
|
|
|
||
|
|
|
||
|
|
SELECT 1, 2 UNION SELECT 'a', 'b';
|
||
|
|
(SELECT 1 UNION SELECT 1) UNION SELECT 1;
|
||
|
|
SELECT 1 FOR UPDATE UNION SELECT 1 FOR UPDATE;
|
||
|
|
(SELECT 1 FOR UPDATE) UNION (SELECT 1 FOR UPDATE);
|
||
|
|
|
||
|
|
SELECT 1, 2 UNION ALL SELECT 'a', 'b';
|
||
|
|
SELECT 1, 2 UNION DISTINCT SELECT 'a', 'b';
|
||
|
|
|
||
|
|
(SELECT 1 UNION ALL SELECT 1) UNION ALL SELECT 1;
|
||
|
|
(SELECT 1 UNION DISTINCT SELECT 1) UNION DISTINCT SELECT 1;
|
||
|
|
(SELECT 1 UNION ALL SELECT 1) UNION DISTINCT SELECT 1;
|
||
|
|
(SELECT 1 UNION DISTINCT SELECT 1) UNION ALL SELECT 1;
|
||
|
|
(SELECT 1 UNION ALL SELECT 1) UNION SELECT 1;
|
||
|
|
(SELECT 1 UNION DISTINCT SELECT 1) UNION SELECT 1;
|