Zeilennummer in SQL erstellen
SELECT t.A, t.B, t.C, ROW_NUMBER() OVER (ORDER BY t.A) as newId
FROM dbo.tableZ AS t
ORDER BY t.A;
Motionless Macaque
SELECT t.A, t.B, t.C, ROW_NUMBER() OVER (ORDER BY t.A) as newId
FROM dbo.tableZ AS t
ORDER BY t.A;
syntax -> SELECT column_name(s)
FROM table_name
WHERE ROWNUM <= number
////example///
SELECT *
FROM Persons
WHERE ROWNUM <=5
Returns results where the row number meets the passed condition.
Example: Returns the top 10 countries from the countries table.
SELECT * FROM countries
WHERE ROWNUM <= 10;
SELECT ROWNUM, a.*
FROM (SELECT customers.*
FROM customers
WHERE customer_id > 4500
ORDER BY last_name) a;