1) Publishing stored procedures is fully supported which is covered in
Publish Data and Database Objects. With Transactional Replication you have the option to published the definition of the stored procedure or the execution of the stored procedure. Publishing stored procedure execution can provide significantly
better performance. You can find more information on this in
Publishing Stored Procedure Execution in Transactional Replication. Note that with Merge Replication you can only publish stored procedure definition.
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