small help

[RAMYA]

ALTER TABLE TimeTracker.TT_ProjectMembers ADD 
CONSTRAINT FK_Roles_Projects FOREIGN KEY 
(
ProjectID
) REFERENCES TimeTracker.TT_Projects (
ProjectID
) ON DELETE CASCADE ,
CONSTRAINT FK_WorksOn_Users FOREIGN KEY 
(
UserID
) REFERENCES TimeTracker.TT_Users (
UserID
)



As iam new to this mysql when i was doing the program mysql shows the error
as

You have an error in your SQL syntax; check the manual that corresponds to
your MySQL server version for the right syntax to use near 'CONSTRAINT
FK_WorksOn_Users FOREIGN KEY 
(
UserID
) REFERENCES TimeTracke' at line 8


what to do if this error comes plz anyone help me


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errors in mysql syntax

[RAMYA]

ALTER TABLE TimeTracker.TT_ProjectMembers ADD 
CONSTRAINT FK_Roles_Projects FOREIGN KEY 
( 
ProjectID 
) REFERENCES TimeTracker.TT_Projects ( 
ProjectID 
) ON DELETE CASCADE , 
CONSTRAINT FK_WorksOn_Users FOREIGN KEY 
( 
UserID 
) REFERENCES TimeTracker.TT_Users ( 
UserID 
) 



As iam new to this mysql when i was doing the program mysql shows the error
as 

You have an error in your SQL syntax; check the manual that corresponds to
your MySQL server version for the right syntax to use near 'CONSTRAINT
FK_WorksOn_Users FOREIGN KEY 
( 
UserID 
) REFERENCES TimeTracke' at line 8 


what to do if this error comes plz anyone help me 



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MYSQL_OPT_READ_TIMEOUT -- Linux

[Ramya Krishnan]

Hi,
I am using mysql-5.0.21 version. This issue was discussed in the bugs 
list 4.x.x version and I believe the same has been closed(only for windows).

Problem:
1. Connection is established to the server
2. sever goes down.
3. The read at the client hangs.

The timeout has been implemented for windows. Not for Linux?? If this is 
not required in Linux how do i handle the same in linux. Would I have to 
wait close to 15 min for the function to return? Can this be controlled 
through my.cnf or mysql_option. Why cant setsockopt to control the 
timeout be implemented on Linux too.



8938  12:10:11.040375 read(3, 0x8de33b0, 16384) = -1 EHOSTUNREACH (No 
route to host)
8938  12:25:36.521901 shutdown(3, 2 /* send and receive */) = -1 
ENOTCONN (Transport endpoint is not connected)



void vio_timeout(Vio *vio __attribute__((unused)),
uint which __attribute__((unused)),
uint timeout __attribute__((unused)))
{
#ifdef __WIN__
 ulong wait_timeout= (ulong) timeout * 1000;
 (void) setsockopt(vio-sd, SOL_SOCKET,
   which ? SO_SNDTIMEO : SO_RCVTIMEO, (char*) wait_timeout,
   sizeof(wait_timeout));
#endif /* __WIN__ */
}


--
Thanks and Regards
Ramya Krishnan

Any intelligent fool can make things bigger, more complex, and more violent. It 
takes a touch of genius and a lot of courage to move in the opposite direction 
-- Albert Einstein


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