Microsoft
Software
Hardware
Network
Question : MySQL Query Where Not Exists
Given table1 with rows id,type,name and table2 with rows id,priority,level
Some of the id's in table2 are also in table1, but in this case, I want to select all id's from table1 that do NOT have a matching id in table2.
What's the simplest way to build this query?
Answer : MySQL Query Where Not Exists
this trick will do;
1: 2: 3: 4: 5:
select t1. from table1 t1 LEFT JOIN table2 t2 ON t1.id = t2.id WHERE t2.id IS NULL
Random Solutions
TRY and CATCH
Saving Hosts File on iMac OSx
I am new to webservices, please help.
new keyboard not recognised before logon
XP runs slow error 0XC000005e,The Security System detected an attempted downgrade attack for server
htaccess rewrite
Cant install fonts on a Mac
PayPal with CreditCard
Transaction in entity framework
Visual Studio 2010 ASP.NET 4.0 not registered error