Mysql Forign Key Is Not Adding
Jan 2, 2007Dear Sir,
I am working on mysql (linux). I cant add forign key to my tables.
ALTER TABLE test
ADD CONSTRAINT ldf_fk
FOREIGN KEY(lead_code)
REFERENCES source(lead_code)
regards
Joby
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Adding A MySQL Data Source
Aug 22, 2006I'm attempting to create a new GUI for an existing MySQL database I have. I would like to program this application using Visual Studio 2005 using the Visual C++ or C# language.
I'm having trouble connecting to the database though. When I attempt to add it as a data source I get the following error: "Could not retrieve schema information for table or view"
I'm using the MySQL ODBC driver version 3.51 and MySQL versoin 5.0. Visual Studio 2005 Professional Edition.
Can someone help me get this project started? How do I connect to my database?
Thanks!
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Apr 28, 2004Hi all
i have one central site and 7 remote sites, there are one mssqlserver 2k in each sites.
i have to replicate 4 table in one DB(my DB have about 20 tables) in my 8 sites.
this 4 table have forignkey between themselves and other15 tables
i planed to transactional replication but i cant becuse forign keys occure erros
if needed i can send my DB digram to you.
can anyone help me? :confused:
Thanx
M.J.Danesh
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| tbl_Customer | -> one to many ->| tbl_Orders |
What i want is to delete one customer from the tbl_Customer table, and automatically delete all the child orders to that customer.
i could by using loops, look through all the childs and delete the records one by one and the customer last.
so i wounder if there are an SQL state that automatically look up childs and drop them all by calling an stored procedure.
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Feb 12, 2007Good Morning
Has anyone successfully used cherry's oledb provider for MYSQL to create a linked server from MS SQLserver 2005 to a Linux red hat platform running MYSQL.
I can not get it to work.
I've created a UDL which tests fine. it looks like this
[oledb]
; Everything after this line is an OLE DB initstring
Provider=OleMySql.MySqlSource.1;Persist Security Info=False;User ID=testuser;
Data Source=databridge;Location="";Mode=Read;Trace="""""""""""""""""""""""""""""";
Initial Catalog=riverford_rhdx_20060822
Can any on help me convert this to corrrect syntax for sql stored procedure
sp_addlinkedserver
I've tried this below but it does not work I just get an error saying it can not create an instance of OleMySql.MySqlSource.
I used SQL server management studio to create the linked server then just scripted this out below.
I seem to be missing the user ID, but don't know where to put it in.
EXEC master.dbo.sp_addlinkedserver @server = N'DATABRIDGE_OLEDB', @srvproduct=N'mysql', @provider=N'OleMySql.MySqlSource', @datasrc=N'databridge', @catalog=N'riverford_rhdx_20060822'
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'collation compatible', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'data access', @optvalue=N'true'
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'dist', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'pub', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'rpc', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'rpc out', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'sub', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'connect timeout', @optvalue=N'0'
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'collation name', @optvalue=null
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'lazy schema validation', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'query timeout', @optvalue=N'0'
GO
EXEC master.dbo.sp_serveroption @server=N'DATABRIDGE_OLEDB', @optname=N'use remote collation', @optvalue=N'false'
Many Thanks
David Hills
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