在MySQL中，你可以这样做:values (1,2)， (3,4);

mysql> values (1,2), (3, 4);
+---+---+
| 1 | 2 |
+---+---+
| 1 | 2 |
| 3 | 4 |
+---+---+
2 rows in set (0.004 sec)

在MySQL 8中，也可以给列命名:

mysql> SELECT * FROM (SELECT 1, 2, 3, 4) AS dt (a, b, c, d);
+---+---+---+---+
| a | b | c | d |
+---+---+---+---+
| 1 | 2 | 3 | 4 |
+---+---+---+---+

下面介绍如何使用DB2的XML特性来实现这一点

SELECT *
FROM
XMLTABLE ('$doc/ROWSET/ROW' PASSING XMLPARSE ( DOCUMENT '
<ROWSET>
  <ROW>
    <A val="1" /> <B val="2" /> <C val="3" />
  </ROW>
  <ROW>
    <A val="4" /> <B val="5" /> <C val="6" />
  </ROW>
  <ROW>
    <A val="7" /> <B val="8" /> <C val="9" />
  </ROW>
</ROWSET>
') AS "doc"
   COLUMNS 
      "A" INT PATH 'A/@val',
      "B" INT PATH 'B/@val',
      "C" INT PATH 'C/@val'
) 
AS X
;

使用SQLite3，下面选择Go .QueryContext()

VALUES (1), (2)

返回名为“Column1”的单个未类型化列 还有两行值分别为1和2

VALUES是简单SELECT语句的特殊形式 https://www.sqlite.org/lang_select.html#simpleselect

在Oracle中

SELECT
  CASE
    WHEN level = 1
    THEN 'HI'
    WHEN level = 2
    THEN 'BYE'
  END TEST
FROM dual
  CONNECT BY level <= 2;

DB2的一个选项:

SELECT 101 AS C1, 102 AS C2 FROM SYSIBM.SYSDUMMY1 UNION ALL
SELECT 201 AS C1, 202 AS C2 FROM SYSIBM.SYSDUMMY1 UNION ALL
SELECT 301 AS C1, 302 AS C2 FROM SYSIBM.SYSDUMMY1

下面的裸值命令为我在PostgreSQL工作:

VALUES (1,2,3), (4,5,6), (7,8,9)