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java开源的企业总线.xmlBlaster

Here an example on how to start a standalone DbWriter

java org.xmlBlaster.contrib.dbwriter.DbWriterExample


 
SELECT column FROM table
ORDER BY RAND()
LIMIT 1
 
Select a random row with PostgreSQL:
 
SELECT column FROM table
ORDER BY RANDOM()
LIMIT 1
 
Select a random row with Microsoft SQL Server:
 
SELECT TOP 1 column FROM table
ORDER BY NEWID()
 
Select a random row with IBM DB2
 
SELECT column FROM table
ORDER BY RAND()
FETCH FIRST 1 ROWS ONLY
 
Thanks Tim
Select a random record with Oracle:
 
SELECT column FROM
( SELECT column FROM table
ORDER BY dbms_random.value )
WHERE rownum = 1