“SQL -Grenze” Code-Antworten

SQL begrenzt Ergebnisse

-- MySql
SELECT * FROM emp ORDER BY sal DESC LIMIT 5;	
-- SQL Server 
SELECT TOP 5 * FROM emp ORDER BY sal DESC;	
-- Oracle < 11g 
SELECT * FROM ( SELECT * FROM emp ORDER BY sal DESC ) WHERE ROWNUM <= 5;
-- Oracle 12c +
SELECT * FROM emp ORDER BY sal DESC FETCH FIRST 5 ROWS ONLY;	
VasteMonde

SQL -Grenze auf 5 Ergebnisse

SELECT expressions
FROM tables
[WHERE conditions]
[ORDER BY expression [ ASC | DESC ]]
LIMIT number_rows [ OFFSET offset_value ];
Hurt Hornet

SQL Limit -Klausel

SELECT first_name, age
FROM Customers
LIMIT 2;
SAMER SAEID

Rownum in SQL

SELECT ROWNUM, a.*
FROM (SELECT customers.*
      FROM customers
      WHERE customer_id > 4500
      ORDER BY last_name) a;
Fine Fowl

SQL -Grenze

SELECT * FROM customer
LIMIT 10;
Scary Salamander

Wie zeigt ich Top 50 Zeilen an?

In MySQL, top 50 rows are displayed by using this following query:
SELECT * FROM
LIMIT 0, 50;
nk

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