I have a table with name "table_name" approximately like this
+----+-----------+
| ID | title |
| 1 | title 1 |
| 2 | title 2 |
| ...| ......... |
| ...| ......... |
| n | title n |
+----+-----------+.
And I need a query that returns this result
+------+-----------+
| n+1 | title 1 |
| n+1 | title 2 |
| ... | ......... |
| ... | ......... |
| n+1 | title n |
+------+-----------+
(n+1 is select max(ID) from table_name)
how can I do that?
Simply add a sub-query to the select list:
select (select max(ID) + 1 from tablename), title
from tablename
Window function
SELECT MAX(ID) OVER() + 1, title
FROM table_name
You can select this max ID to a variable, and then simply use it in your select:
DECLARE @maxId INT = (SELECT MAX(ID) FROM [dbo].[table1]);
SELECT @maxId, t.title, t.column2, t.column3 ... from [dbo].[table2] t
For Mysql
select (1+max(ID)) as ID ,title
from table_name;
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