mysql - How to get MySQL offset as a column with alias?

Question

How to get MySQL offset as a column with alias?

What I need is a way to get the current offset as a column in my sql query.

SELECT *, <THE_CURRENT_QUERY_OFFSET> AS current_query_offset
  FROM test_table
 LIMIT 10 OFFSET 25

So, I should have a column named current_query_offset which is 25 in each row.

Note: I don't need the current row position the way it is given in With MySQL, how can I generate a column containing the record index in a table? .

Answer 1

这个怎么样：

SELECT *, 25 AS current_query_offset
FROM test_table
LIMIT 0 OFFSET current_query_offset

Answer 2

如果我正确理解您想要实现的目标（即：选择包含常量值的命名列以及任何其他列），这将起作用：

SELECT *, 25 AS current_query_offset
FROM test_table
LIMIT 10 
OFFSET 25;

由于您已经25为您的 sql 代码提供了一次值，所以我不明白您为什么不应该第二次这样做。