Is it possible to update a table in SQL Server using a trigger in MySQL. The scenario is like this.
When a table is updated in MySQL, a corresponding update is to be done in SQL Server for the purpose of syncing certain fields. I understand that the reverse is possible using a linked server in SQL Server.
You can write a UDF function that would update data in the SQL Server. Then call this UDF from the trigger.
Here's some information which may be of help regarding linking SQL Server and MySQL
http://forums.mysql.com/read.php?60,123221,123221
I'm afraid I've no personal experience in the matter as I thankfully have MySQL servers across the board, however had a scan through the links in the above and at least one of them should be able to assist.
Related
I was wondering if anybody had any advice or references that explain how to pull data from MySQL and drop it into SQLSever! Any input would be greatly appreciated!! Thanks!
You can add MySQL as a "linked server"
http://forums.mysql.com/read.php?60,123221,123221
Once you did that you can reference the MySQL tables, views, etc with their fully qualified name in regular SQL Server queries
I could not tell if you wanted to access a MySQL database because you were migrating to SQL server, or if you wanted to access a MySQL database on an ongoing basis. I am answering as if you want to migrate, because you already have an excellent answer on accessing MySQL from SQL Server.
If you want to migrate, mysqldump is one way to go. Its format is easily parsed.
You can also write the results of any MySQL table -- and SQL Server for that matter -- to .csv format. .csv format is nearly a universal transfer format for data.
I want to add some fake records/rows for in the table for MS SQL 2008 Standard Edition database and use these records to monitor my database.
The purpose for this is to monitor hackers. It is possible to create a trigger to do this. It seemed like the DDL Triggers can not do this tasks.
If you can't control access to your database via stored procedures (where you could add your own logging), you will need to use auditing or server-side trace for this. There is no such thing as a select trigger and there are no DMVs that will tell you which rows were looked at via any select action.
I am writing an SSIS package that has a conditional split from a SQL Server source that splits records to either be updated or inserted into a MYSQL database.
The SQL Server connection has provider .NET Provider for OldDB\SQL Server Native Client 10.0.
The MYSQL connection is a MYSQL ODBC 5.1 ADO.NET connection.
I was thinking about using the OLE DB Command branching off of the conditional split to update records but I connect use this and connect to the MYSQL database.
Does anyone know how to accomplish this task?
I would write to a staging table for updates including the PK and columns to be updated and then execute an UPDATE SQL statement using that table and the table to be updated. The alternative is to use the command for every row and that just doesn't seem to perform that well in my experience - at least compared to a nice fat batch insert and a single update command.
For that matter, I guess you could do without the conditional split altogether, write everything to a staging table and then use an UPDATE and INSERT in SQL back to back.
Probably, the following MSDN blog link might help you. I haven't tried this.
How do I UPDATE and DELETE if I don’t have an OLEDB provider?
The post suggests the following three options.
Script Component
Store the data in a Recordset
Use a custom component (like Merge destination component)
The author also had posted two other articles about MySQL prior to posting the above article.
Connecting to MySQL from SSIS
Writing to a MySQL database from SSIS
Hope that points you in the right direction.
I have a mysql database full of data which I need to keep but migrate to SQL Server 2008.
I know end to end where the data should go, table to table but I have no idea how to go about moving the data. I've looked around the web but it seems there are 'solutions' which you have to download and run. I'd rather if possible do something myself in terms of writing scripts or code.
Can anyone recommend the best way to do this please?
You have several options here:
On the sql server side, you can set up a connection to your old mysql db using something called a linked server. This will allow you to write sql code for sql server that returns data from the mysql tables. You can use this to build INSERT or SELECT INTO statements.
You can write queries for mysql to export your data as csv, and then use the BULK INSERT features of sql server to efficiently import the csv data.
You can use Sql Server integration services to set move the data over from mysql.
Regardless of which you choose, non-data artifacts like indexes, foreign keys, triggers, stored procedures, and security will have to be moved manually.
Have you tried tool from MSFT called SQL Server Migration Assistance for MySQL ???
https://www.microsoft.com/download/en/details.aspx?id=1495
Try this tutorial it is very easy to perform migration to SQL Server from Mysql and is straightforward as mentioned
http://www.codeproject.com/Articles/29106/Migrate-MySQL-to-Microsoft-SQL-Server
Thanks
You can use the Import/Export Wizard that comes with SQL Server Standard Edition.
Select your 'data source' from MySQL using the ODBC data source. Note: You will need to first install the from ODBC driver for MySQL (ODBC Connector). Then, select your SQL Server destination. Select all tables, and fire it up. You will need to add your primary and foreign keys, and indexes manually.
A bit more automated means would be by using the SQL Server Migration Assistant for MySQL, also free. It has the benefit of recreating the relationships and indexes automatically for you. Probably your best bet.
I did it once, some time ago. First you could couple your mssql server to the mysql server using the odbc mysql connector
http://dev.mysql.com/downloads/connector/
After the connection is made you can write you database procedure as you would if it were two mssql db's. Probably easiest to write some sql batch scripts including a cursor where you run through every every row of a table an decide on a field basis where you will need the field in the future.
example of a cursor: http://www.mssqltips.com/tip.asp?tip=1599
If you decide to go with the cursor, you can play with the parameter to increase performance. I especially remember the FORWARD_ONLY parameter giving a big boost.
I have 2 Database in my VB.net application. I am using 1st database for daily operations. I would like to send one of the table records to online database. How Can I do that? First database is MSSQL Online database is MYSQL. I have created connections already using MYSQL .net connector.
Any Help will be appreciated.
Regards
Have a look at using a Linked Server instance on SQL Server to write the data to MySQL using the four name notation.
SQL SERVER – Explanation and Example Four Part Name
SQL Server Four-part naming
Ok here is a rough set of steps you need to follow
Query the MSSQL database and retrieve the data you want. Storing it in a DataTable may be the best option starting off.
Loop through the DataTable rows and build an INSERT statement that will be run against the MYSQL database.
Execute the command against the MYSQL db.
This is the basics of what you need to do to get a simple working system. Also take a look at Transactions as a way to manage the rollback of data when something goes wrong.
I'm assuming this is a research project If you are planning on using this code in a production system then i would look into a different alternative such as uploading data files to a service attached to the MYSQL database. This would allow you to batch and retry an import when something goes wrong.