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Manipulate execution block

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Joined: 21 May 2009
Posts: 8

PostPosted: Mon May 25, 2009 10:47 am    Post subject: Manipulate execution block Reply with quote


I got the execution block and manipulated it by getting its value (ToString()) to string variable.
Now I want to execute the updated string.

How can I set it back to the block?
Any other way?

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Brian Donahue

Joined: 23 Aug 2004
Posts: 6674

PostPosted: Thu May 28, 2009 6:24 pm    Post subject: Reply with quote

Hi Amir,

As far as I am aware, you cannot make changes to the ExecutionBlock script and write it back. What you could do is to execute your own bespoke SQL code in-line with the SQL batches contained in the ExecutionBlock using a standard ADO .NET connection. Here is some sample code here that explains how to do it.

Work w=new Work();
bool quiet=false;
w.BuildFromDifferences(diffs, options, true);
            if (!quiet) Console.WriteLine("Synchronizing database");
            SqlTransaction trans=null;
            int batNum = 0; // current batch number
                cmd = conn.CreateCommand();
                cmd.CommandTimeout = queryTimeout;
                trans = conn.BeginTransaction(System.Data.IsolationLevel.Serializable, "MainTransaction");
                cmd.Transaction = trans;   
//Execute your own stuff before SQL Compare's stuff
                        cmd.CommandText = "UPDATE MyTable SET something=somethingelse";
                for (batNum = 0; batNum < w.ExecutionBlock.BatchCount; batNum++)
                    Batch b=w.ExecutionBlock.GetBatch(batNum);
                    if (!b.Marker)
                        cmd.CommandText = b.Contents;
                    if (!quiet) Console.Write(String.Format("    \r{0}%\r", (int)((batNum / (double)w.ExecutionBlock.BatchCount) * 100)));
            if (!quiet) Console.WriteLine("Synchronization successful");
Note well: the synchronization script was produced with the option to produce transactional plumbing off, otherwise setting up the transactions using C# code will fail.
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