The Art of SQL Server FILESTREAM - Red Gate Software

Chapter 10: Integrating FILESTREAM with other SQL Server FeaturesThe configuration settings of any article that is part of a publication can be changed usingthe stored procedures:• for merge replication – sp_changemergearticle• for transactional replication (with or without updatable subscriptions)– sp_changearticle.Both of these stored procedures accept the schema_option parameter; this parameteris a bitmap value, where every bit (or "flag") in this parameter represents the status of aspecific configuration setting, one of which determines whether or not SQL Server willreplicate the FILESTREAM attribute. The value returned for this parameter is the bitwiseOR product of one or more of the values of these bits.To replicate a FILESTREAM column along with the FILESTREAM attribute, the bitrepresented by 0x100000000 should be set; to disable replication of the FILESTREAMattribute, this bit should be cleared, being careful not to set or clear any bits other thanthe intended one.The recommended way to change the FILESTREAM replication flag is as follows:• read the existing value of the schema_option configuration setting• set or clear the FILESTREAM replication flag (0x100000000)• write the modified configuration value back to the publication.Read the current configuration settingThe first step is to read the current value of the schema_option configuration setting,using either the sp_helpmergearticle system stored procedure for merge replicationor sp_helparticle for transactional replication, as shown in Listing 10-3.361