Implementing conﬂict resolution | Sybase DC38133-01-0902-01 manual

Implementing conﬂict resolution

This section describes what you need to do to implement custom conﬂict resolution in SQL Remote for Adaptive Server Anywhere. The concepts are the same in SQL Remote for Adaptive Server Enterprise, but the implementation is different.

SQL Remote allows you to deﬁne conﬂict resolution triggers to handle UPDATE conﬂicts. Conﬂict resolution triggers are ﬁred only at a consolidated database, when messages are applied by a remote user. When an UPDATE conﬂict is detected at a consolidated database, the following sequence of events takes place.

1.Any conﬂict resolution triggers deﬁned for the operation are ﬁred.

2.The UPDATE takes place.

3.Any actions of the trigger, as well as the UPDATE, are replicated to all remote databases, including the sender of the message that triggered the conﬂict.

In general, SQL Remote for Adaptive Server Anywhere does not replicate the actions of triggers: the trigger is assumed to be present at the remote database. Conﬂict resolution triggers are ﬁred only at consolidated databases, and so their actions are replicated to remote databases.

4.At remote databases, no RESOLVE UPDATE triggers are ﬁred when a message from a consolidated database contains an UPDATE conﬂict.

5.The UPDATE is carried out at the remote databases.

At the end of the process, the data is consistent throughout the setup.

UPDATE conﬂicts cannot happen where data is shared for reading, but each row (as identiﬁed by its primary key) is updated at only one site. They only occur when data is being updated at more than one site.

Using conﬂict resolution triggers

This section describes how to use RESOLVE UPDATE, or conﬂict resolution triggers.

UPDATE statements with Conﬂict resolution triggers are ﬁred by the failure of values in the VERIFY

a VERIFY clause clause of an UPDATE statement to match the values in the database before the update. An UPDATE statement with a VERIFY clause takes the following form:

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Sybase DC38133-01-0902-01 manual Implementing conﬂict resolution, Using conﬂict resolution triggers

Contents

SQL Remote User’s Guide Part number DC38133-01-0902-01 Last modiﬁed OctoberPage Contents SQL Remote Administration 199 Principles of SQL Remote DesignSQL Remote Design for Adaptive Server Anywhere SQL Remote Design for Adaptive Server Enterprise 141 Administering SQL Remote for Adaptive Server Anywhere241 Using SQL Remote with Replication Server 277System Objects for Adaptive Server Anywhere 325 Utilities and Options Reference 291 Command Reference for Adaptive Server Anywhere 353 Command Reference for Adaptive Server Enterprise 379 Server Anywhere Differences 437 SQL Remote for Adaptive Server Enterprise and AdaptiveSupported Platforms and Message Links 445 Index 449 Viii Systems About This ManualMail or ﬁle transfer SQL Anywhere Studio documentation Adaptive Server Anywhere Database Administration Guide ThisPage Page Documentation conventions Release Savepoint savepoint-name Following icons are used in this documentation Client applicationDatabase server, such as Sybase Adaptive Server Anywhere Xiv Adaptive Server Anywhere sample database Asademo.db Finding out more and providing feedback Page Xviii Introduction to SQL Remote Page Welcome to SQL Remote This chapter introduces SQL Remote and the documentation SQL Remote for Adaptive Server Anywhere Enables replication About SQL Remote Product installation To install the SQL Remote software WindowsTo install the SQL Remote software Unix About this manualPage SQL Remote Concepts SQL Remote SQL Remote components Message Agent Data serverClient applications Message system client Publications and subscriptions Two-table synchronization definition Replication At the remote database SQL Remote features Page Some sample installations Server-to-laptop replication for mobile workforces Server-to-server replication among ofﬁces More Page Setting Up SQL Remote Setup overview Each user in the installationSybase System Administrator should perform all SQL Remote You must take some steps to Installing the SQL Remote system objects To install the SQL Remote system objectsPreparing your Adaptive Server Enterprise server Ensuring Tempdb is large enough SQL Remote system objects Command-line installation of the stable queue To install the stable queuePage To upgrade SQL Remote Upgrading SQL Remote for Adaptive Server Enterprise To uninstall the stable queue from a database Uninstalling SQL RemoteTo uninstall the SQL Remote objects from a database Tutorials for Adaptive Server Anywhere Users Just on those issues important for replication IntroductionGoals Database Tutorials for Adaptive Server Anywhere Users Tables are described in more detail as follows Replication goals RepkeyName Custkey Sybase Central or command-line utilities Preparing for the Sybase Central replication tutorial To prepare for the tutorial To add tables to the consolidated database Setting up a consolidated database Add a SQL Remote message type To add an address to a message type Add the publisher and remote user to the database To create a new user as the publisher To add a publication To add a remote userAdd publications and subscriptions Set up the remote database in Sybase Central Enter the expression repkeyClick Finish to create the publication Publication for the remote database user ﬁelduser To extract a database Preparing for the replication tutorial To create the databases and directories for the tutorial Create a SQL Remote message type Set up the consolidated databaseTo add the tables to the consolidated database To create a publisher for the database To create the message typeGrant Publish and Remote at the consolidated database Table SalesRep, and some of the rows of the table Customer Create publications and subscriptionsSQL, to create a publication To create the subscription Set up the remote databaseTo create the publication To load the database information Extract the remote database informationLoad the remote database information Select * from SalesRep Select * from Customer Start replicating data Enter data at the consolidated databaseSend data from the consolidated database First, enter some data into the consolidated database To receive data at the remote database Receive data at the remote databaseTo send the data to the remote database To verify that the data has arrived Commit the insertion by executing the following statement Custkey Name Repkey Sample publication To add the publication to the sample databasePage Tutorial for Adaptive Server Enterprise Users Database schema for the tutorial is illustrated in the ﬁgure Tutorial for Adaptive Server Enterprise Users SalesRep table is many-to-onePage Tutorial Adaptive Server Enterprise replication First steps To install SQL Remote into the hq database Create the Customer table with the following statement Setting up the consolidated databaseCreate the SalesRep table with the following statement Create the message links and addresses Create the necessary users and permissions To create the publisher To create the subscriber Create the publication and subscription Create an empty publication To create a subscription Create a subscription to SalesRepData for ﬁelduser , with aSubscription value of rep1 Extract the remote database To create a database ﬁle named ﬁeld.db To load the data into the database using Interactive SQLUtility on Run the script from Interactive SQL Connect to the server using the Interactive SQL utilityTo load the data into the database as a batch process To enter data at the Adaptive Server Enterprise database Connect to the Adaptive Server Enterprise server from isql To replicate the data from Adaptive Server Enterprise To receive the data at Adaptive Server Anywhere Commit the row Custkey Name Repkey Page Replication Design for SQL Remote Page Principles of SQL Remote Design Adaptive Server Enterprise System Administrator or database Design overviewEnsuring compatible databases SQL Remote replicates data Using compatible sort orders and character sets SQL Remote Message Agent does not perform any character setConversions Between Ssremote and Adaptive Server Enterprise whenever 819LATIN1 Eucjapan Replication of inserts and deletes Replication of updatesHow statements are replicated Clause of the Update statement User, the row to be updated is not foundStatement Representatives Replication of procedures This case, the Update does not update anythingProcedure call is not replicated Replication of triggers Message causing the conﬂict Body of your triggersActions carried out by conﬂict Some Before triggers can produce Replication of data deﬁnition statements How data types are replicated Replication of blobs Replication of dates and times Select Who gets what? Principles of SQL Remote Design Replication conﬂicts Replication errors and conﬂictsReplication errors Tracking SQL errors Issue the following statementVARCHAR, or Long VARCHAR. The procedure is called once with DetectedPage SQL Remote Design for Adaptive Server Anywhere Publications determine what information Is shared among which databasesSubscriptions determine what Information each user receives Publishing data Publishing whole tablesTo publish one or more entire tables Sybase Central To publish one or more entire tables SQL To publish only some columns in a table Sybase Central Publishing only some columns in a tableFor more information, see the Create Publication statement Publishing only some rows in a table To publish only some columns in a table SQL To create a publication using a Where clause SQL Publishing only some rows using a Where clauseTo create a publication using a Where clause Sybase Central Publishing only some rows using a subscription expression To create an article using a subscription expression SQL Column Altering existing publications To add articles Sybase Central To modify an existing publication SQL Dropping publicationsTo remove articles Sybase Central See also the Drop Publication statement ASA SQL Reference, To delete a publication Sybase CentralTo delete a publication SQL Design issues overview Publication design for Adaptive Server Anywhere Conditions for valid articles Design tips for performance Pay attention to Update Publication Triggers In particular Three tables are described in more detail as follows Here is a simple database that illustrates the problemContact example 106 Following informationThose customers assigned to them, from the Customer table Territory realignment in the Contact example Partitioning the Customer table in the Contact examplePartitioning the Contact table in the Contact example Reps Properly transferred to the new sales representativeAlong with the Customer For which there is no longer a Customer Special Update statement for publications Understanding this helps in designing efﬁcient publications Assume the following data∙ SalesRep table ∙ Customer table SalesRepData Publication Name rep1 Before list Many-to-many relationship in the database Sharing rows among several subscriptionsPolicy example With the following information Entire SalesRep tableInvolving the sales rep subscribed to the data 113 Publication Territory realignment with a many-to-many relationship Contact example on Remote databases contain the proper data 116 Customer being transferred Where custkey = OldRow.custkey That this subquery can be multi-valuedCan be multi-valued Dealing with the customer, taken from the Policy table Customer SQL Remote Design for Adaptive Server Anywhere Managing conﬂicts ID Rep Dept Ann Marc Must be excluded from the installation by proper design SQL Remote installation at the consolidated databaseHow SQL Remote handles conﬂicts Updating Implementing conﬂict resolution Using conﬂict resolution triggers Create Trigger trigger-name Referencing OLD AS oldval Conﬂict resolution examples Resolving date conﬂicts Resolving inventory conﬂicts Increments from the two updates. For example Reporting conﬂicts Includes the salesorder table Designing to avoid referential integrity errorsDesigning triggers to avoid errors Page Using global autoincrement default column values Ensuring unique primary keys Declaring default global autoincrement Setting the Globaldatabaseid value Database will have Globaldatabaseid set to Primary key values for Global Default Autoincrement valuesTo set the global database identiﬁcation number How default values are chosen Using primary key pools To replicate the primary key pool SQL Primary key pool tableReplicating the primary key pool Filling and replenishing the key pool 136 Cursor for Adding new customers Else Primary key pool summary Insert Creating subscriptions To create and manage subscriptions in Sybase Central For more information, see Create Subscription statement on 140 SQL Remote Design for Adaptive Server Enterprise 141 Design overview Creating articles containing some of the columns in a table Creating publicationsCreating whole-table articles Creating articles containing some of the rows in a table Creating an article using a subscription column Creating an article using a Where clauseTo create an article using a Where clause Spaddarticle publicationname, tablename NULL, columnname To create an article using a subscription columnSpaddremotetable tablename Publication design for Adaptive Server Enterprise Insert Succeeds To handle this case, using an example Contain the subscription columnTwo tables described earlier in this chapter 149 150 Are realigned Adding a subscription-list column to the Contact table Exec spcreatepublication ’SalesRepData’ go Log entries are values, not subscribers Update on the Contact table Update on the Customer tableMaintaining the subscription-list column For the following operations Tuning extraction performance SQL Remote Design for Adaptive Server Enterprise 156 To create a subscription viewCreate a view that contains this subquery. For example Solving the problem 158 Foreign KEY 159 Subscriptions to this publication take the following formThese objects Triggers 161 For Insert AS Begin Tuning extraction performance for shared rows Ensure the quotedidentiﬁer option is set to on 163 Customer Managing conﬂicts Consolidated database, no row will be updated Any conﬂict resolution procedures are calledDatabase objects to handle the resolution When the conﬂicting message arrived Names of the conﬂict resolution objects Remoterowtable. These three are discussed in turnTable only ever contains a single row This table must have the same column names 168 ﬁrst conﬂict resolution exampleTwo-table database is as follows Conﬂict-causing Update After the procedure is run, the rows in the OldCustomerFollows @lostname value is the value that was overridden by ConﬂictLog table has a single row, showing the conﬂict Second conﬂict resolution exampleTo test the example It when the procedure is executed Lost and won namesUser ID of the remote user. The table is as follows Replaces it with the value that was previously present Where conﬂict resolution is carried out by Before triggers There are several points of note hereUser ID of the remote user is stored by the Message Agent Currentremoteuser column of the temporary table #remote 173 Page Primary key pool Columns of this table have the following meanings 175 To replicate the primary key pool 176 177 Adding new customers 179 Testing the key poolTo test the primary key pool Primary key pool summary Spsubscription create, puborders SamS ’856’ Page SQL Remote Page 185 SQL Remote replication installationDeploying and Synchronizing Databases Deployment overview Resolve update conﬂicts are all easy to do Test before deploymentChanges to avoid on a running system Conﬂicts as they occurPage Synchronizing databases Mixed operating systems and database extraction Example Using the extraction utility Where path is the path of the reload command ﬁle 191Creating a database from the reload ﬁles To create a remote database from the reload ﬁle Using the extraction utility from Sybase Central Before extracting a database Designing an efﬁcient extraction procedure To extract a database for a remote user Sybase Central An efﬁcient approach to extracting many databases Limits to using the extraction utility Extracting groups Using the extraction utility for Adaptive Server Enterprise This setup is illustrated in the following diagram Customizing the system tables Synchronizing data over a message system SQL Remote Administration 199 Management overview Managing SQL Remote permissions Granting and revoking Publish permissions To create a new user as the publisher Sybase Central To make an existing user the publisher Sybase CentralTo revoke Publish permissions Sybase Central 202 Exec sppublisher ’SBeaulieu’ go Granting and revoking Remote and Consolidate permissions Granting Remote permissions To make an existing user remote Sybase Central Following optionsUse an Smtp e-mail system Send messages to e-mail address sbeaulieu@acme.com Selecting a send frequency Permissions to user hquser, using the ﬁle message link Granting Consolidate permissionsStatement is executed automatically at the remote database Agent is run Permission from user SBeaulieu Assigning permissions in multi-tier installationsTo revoke Remote permissions Sybase Central Publish Using message types Working with message types To alter a message type Sybase Central Using Sybase Central to work with message typesTo add a message type Sybase Central Using commands to work with message types To drop a message type Sybase CentralTo create a message type SQL Create Remote Message Type type-nameADDRESS address-string To alter a message type SQL To drop a message type SQLCreate Remote Message Type statement on 213 Setting message type control parameters To set a message control parameter Adaptive Server Anywhere 215 By using the ﬁle message systemﬁle message system Ftp message system Troubleshooting ftp problems 218 Smtp message systemMote messages SQL Remote Administration Supported operating systems on Mapi message systemSharing SMTP/POP addresses VIM message system VIM message control parameters Running the Message Agent Message Agent batch and continuous modesNames are ssremote and dbremote, respectively Enterprise works on Replication system recovery procedures To run the Message Agent in continuous modeTo run the Message Agent in batch mode Connections used by the Message Agent Ensuring consistent Message Agent settings See the sections Transaction log and backup management onAdaptive Server Enterprise transaction log and backup Management on Troubleshooting errors at remote sites Message Agent and replication security Execute the following command against the remote database To conﬁgure a consolidated site to receive log informationUse either the -roor the -rtMessage Agent option For more information, see The Message Agent on Tuning Message Agent performance Tuning throughput by controlling Message Agent threading Tuning throughput by caching messages Tuning incoming message polling Polling interval 231 Requesting resendsExample Tuning the message sending process To those when tuning the incoming-message polling frequency Your choices dictate how often updates are sent toWhen a remote user requests that a message be Resending messages Dbremote -ru 1h Encoding and compressing messages Encoding scheme Creating custom encoding schemes Tracking messages by transaction log offsets Message tracking systemStatus information in the remoteuser table Agent -loption to change this setting Are offsets in the local database transaction log,Cannot be a later offset than logsent Transaction log Handling of lost or corrupt messages Its resendcountPage Administering SQL Remote for Adaptive Server Anywhere 241 Running the Message Agent as a service Starting the Message Agent Full DBA permissions from the Message Agent When connecting Full DBA permissions on the databaseSuggested practice is to grant Remote DBA authority at DBA authority grants them no extra permissionsPage Error reporting and handling Default error handlingIgnoring errors Agent output Implementing error handling procedures Example e-mailing notiﬁcation of errorsFollowing stored procedure implements this notiﬁcation 246 Columns have the following meaning 247 Commit Work Here is a sample insert into the table from the above error 248 Transaction log and backup management Setting the transaction log directory Such a directory is kept in proper shape Backup utility optionsUsing the live directory as the transaction log directory Following command line Using the backup directory as the transaction log directory 252 Managing old transaction logs 254 Recovery with a single transaction logTo recover the database To recover from media failure on the C drive Backup the mirrored transaction log d\mirdir\consol.mlgStart the database using the following command line Recovery with multiple transaction logs Backups daily using the following command Command line would beBackup the mirrored transaction log d\mirdir\cons.mlg Make a copy of the database and log ﬁle Restart your system as normal Backup procedures at remote databasesApply the renamed transaction logs in order, as follows Upgrading consolidated databases 258 To unload and reload a consolidated database manual Using passthrough mode Uses and limitations of passthrough mode Operations not replicated in passthrough mode On a running SQL Remote setupProcedure on the replicate side has the correct effect However, the following dynamic SQL statement is replicated Administering SQL Remote for Adaptive Server Enterprise 263 Message Agent on How the Message Agent for Adaptive Server Enterprise worksScanning the transaction log Administering SQL Remote for Adaptive Server Enterprise Stable queue Message Agent operation phases 266 TransactionStable Logqueue Message Agent 267 268 For setup instructions, see Setting Up SQL Remote on Running multiple Message Agents To execute Agent output Protecting against media failure on the transaction log Stable queue recovery issues Transaction log management With the following command Truncation point can be reset with the following commandFreed by Dump Transaction 274 Making schema changes Schema modiﬁcations Using SQL Remote with Replication Server 277 When you need to use the SQL Remote Open Server Architecture for Replication Server/SQL Remote installations How the pieces ﬁt together Message system Stable Queue Agent Information to retrieve it when it starts Remote Open Server onSQL Remote Open Server is the following executable On Windows operating systems, the SQL Remote Open Server is Add the SQL Remote Open Server to the setup This stage is Setting up SQL Remote Open ServerSame regardless of previous installations To set up the SQL Remote Open Server Page Conﬁguring Replication Server Set the dsixactgroupsize parameterSet the dsinumthreads parameter Create replication deﬁnitions for SQL Remote data Suspend and restart the connection Other issues 288 This part presents reference material for SQL Remote Page Utilities and Options Reference 291 Dbremote ssremote options directory Message AgentTracking system to ensure message delivery Utilities and Options Reference Listing, see Connections used by the Message Agent on Replication security on 295 Languagename,charsetname,sortorder For more information, see Running multiple Message Agents on Page Dbremote -rd 30s Page Registry, at the following location You should create a ﬁle named dbremote.iniWindows NetWare Database Extraction utility Extracting a remote database in Sybase Central Extraction utility 303 304 Remote Adaptive Server Anywhere database Extraction utility options Utilities and Options Reference Optional Database name. If this parameter is not sup 309 Page Input Server Enterprise and Adaptive Server Anywhere databases SQL Remote Open Server Default value for the open server name is SSQueue Gain access to the SQL Remote system tablesValues default to the -cvalues Name of the executable is as followsPage SQL Remote options Page Yy yyyy mm mmm dd 318 Hh nn mm Ss.s Relationships on Sphookdbremoteend and sphookssrmtend SQL Remote event-hook proceduresSphookdbremotebegin and sphookssrmtbegin Sphookdbremotereceiveend and sphookssrmtreceiveend Sphookdbremoteshutdown and sphookssrmtshutdownSphookdbremotereceivebegin and sphookssrmtreceivebegin Sphookdbremotesendbegin and sphookssrmtsendbegin Sphookdbremotesendend and sphookssrmtsendendSphookdbremotemessagesent and sphookssrmtmessagesent Sphookdbremotemessagemissing and sphookssrmtmessagemissing Has applied a set of messages from a user 323Page System Objects for Adaptive Server Anywhere 325 Each row describes an article in a SQL Remote publication SQL Remote system tablesSysarticle table 327 Sysarticlecol tableIt is in, and the publication it is part Syspublication table Sysremoteoption tableSysremoteoptiontype table Each row describes a SQL Remote publication Sysremotetype table Sysremoteuser tablePublisher address 329 330 Consolidate 331 Syssubscription tableRemote permissions to one publication 332 SQL Remote system views Sysarticles viewSysarticlecols view Syspublications view Sysremoteoptions view Sysremoteusers view 335 Syssubscriptions viewEach row lists information about a subscription 336 System Objects for Adaptive Server Enterprise 337 #remote table Srarticle tableManage SQL Remote information Table has a single row Srarticlecol table Srmarker tableDatabases in the same session 339 Srobject table Sroption tableSrpassthrough table Each row describes a replication option used by SQL Remote Srremoteoption table Srpublication tableSrpublisher table Srremoteoptiontype table Srremotetable tableSrremotetype table 342 Srremoteuser table 343 344 Received Srsubscription table 345 Srpublications view Srarticles viewSrarticlecols view Srremotetypes view Srremoteoptions viewSrremotetables view Srremoteusers view 348 Srsubscriptions view 349 Stable Queue tables Srqueuestate tableStable queue 350 Srtransaction table 351 Srconﬁrmedtransaction table Srqueuecoordinate tableEach row marks the corresponding row in srtransaction 352 Command Reference for Adaptive Server Anywhere 353 354 Alter Remote Message Type statement Been createdMust have DBA authority Automatic commit Subscribe by expression Create Publication statementCreate Publication statement ASA SQL Reference, Create Remote Message Type statement Messages from a databaseCreate Remote Message Type statement SQL Remote ASA SQL Create Remote Message Type message-system Create Subscription statement Create Subscription statement SQL Remote ASA SQL Reference Create Trigger statement Update statement on Must have Resource authority and have Alter permissions onTable and thus requires exclusive use of the table Create Trigger statement SQL Remote ASA SQL Reference Drop Publication statement Drop Publication statement ASA SQL Reference, Drop Remote Message Type statement Granted Remote or Consolidate permissions with this typeDrop Remote Message Type statement SQL Remote ASA SQL Drop Remote Message Type message-system Drop Subscription statement Drop Subscription statement SQL Remote ASA SQL Reference Grant Consolidate statement Current databaseGrant Consolidate statement SQL Remote ASA SQL Reference Send Every AT ’hhmm ss’ Grant Publish statement Grant Remote statement Identified by password Grant Remote DBA statementConnected from the Message Agent Grant Remote DBA statement SQL Remote ASA SQL Reference Passthrough mode Sppassthrough procedure onPassthrough statement Passthrough statement SQL Remote ASA SQL Reference, Remote Reset statement Remote Reset statement SQL Remote ASA SQL Reference,Subscriptions for a remote user in a single transaction No automatic commit is done by this statement Sprevokeconsolidate procedure on Revoke Consolidate statementSQL Remote messages from this database Automatic commit. Drops all subscriptions for the user Revoke Publish statement Current publisherRevoke Publish statement SQL Remote ASA SQL Reference Revoke Publish from userid Sprevokeremote procedure on Revoke Remote statementMessages from this database Revoke Remote statement SQL Remote ASA SQL Reference Revoke Remote DBA statement Revoke Remote DBA statement SQL Remote ASA SQL Reference Message link Splinkoption procedure onSET Remote Option statement Start Subscription statement Start Subscription Stop Subscription statement Stop Subscription Synchronize Subscription statement Synchronize Subscription Create Trigger statement on Update statementUpdate statement SQL Remote ASA SQL Reference, Command Reference for Adaptive Server Enterprise 379 380 Spaddarticle procedure 382 Making schema changes onSalesRepData Spaddarticlecol publicationname Spaddarticlecol procedureTo add a column to an article in a publication Spaddremotetable procedure To mark a table for SQL Remote replication Default conﬂict resolution Remote rows are stored in tables named oldCustomerRemoteCustomer, respectively 385 Spcreatepublication procedure Spdroppublication procedure onTo create a publication Spcreatepublication publicationname Spdroppublication procedure Spcreatepublication procedure onTo drop a publication from the database Spdroppublication publicationname Spdropremotetype procedure Spdropremotetype typename Procedure on Spdropsqlremote procedureSpqueuedrop procedure on Spgrantconsolidate procedure Databases acting as remote databases See also Description Example 392 Spgrantremote procedure Current database must be granted Remote permissions using Single quotesOne of the publications in the current database Speciﬁed 395 Databases Splinkoption procedureSET Remote Option statement on ﬁle message system on Ftp message system onMapi message system on Smtp message system on Spmodifyarticle procedure To change the description of an article in a procedure 399 Subscription expressionExpression that is the repkey column Spmodifyremotetable procedure Spaddremotetable procedure onSpremoveremotetable procedure on Managing conﬂicts on 401 Sppassthrough procedure Sppassthroughpiece string Sppassthroughpiece procedureTo build a long SQL statement for passthrough 404 Sppassthroughstop procedure Resents passthrough modeSppassthroughstop procedure resents the list of recipients Currently being built Sppassthroughsubscription publicationname Sppassthroughsubscription procedureStatements Sppassthroughuser procedure Sppassthroughuser username Sppopulatesqlanywhere procedure Consolidated databaseCalled directly Sppopulatesqlanywhere Sppublisher procedure Sppublisher username Spqueueclean procedure SpqueuecleanBe called directly Log was scanned Spqueueconﬁrmeddeleteold procedure Spqueueconﬁrmeddeleteold Spqueueconﬁrmedtransaction offset Spqueueconﬁrmedtransaction procedureMatch this offset Spqueuedeleteold Spqueuedeleteold procedureBeen conﬁrmed by all remote databases Spqueuedrop procedure Spdropsqlremote procedure on Stable queue recovery issues on Spqueuedumpdatabase procedureSpqueuedumptransaction procedure on Spqueuedumptransaction Spqueuedumptransaction procedureSpqueuedumpdatabase procedure on Spqueuegetstate Spqueuegetstate procedureQueue Spqueuelogtransferreset Spqueuelogtransferreset procedureBe called directly. It resets the page and row IDs to zero Spqueueread startoffset Spqueueread procedureUse by the Message Agent Spqueuereset Spqueuereset procedureReady for a new SQL Remote setup Spqueuesetconﬁrm conﬁrmoffset Spqueuesetconﬁrm procedureUsers in the srqueuestate table Spqueuesetprogress procedure Spqueuesetprogress pageid Spqueuetransaction procedure Spqueuetransaction offset Spremote operation Spremote procedureMessage tracking information in the srremoteuser table Spremoteoption procedure To set a SQL Remote option 426 Alter Remote Message Type statement on Spremotetype procedureSpdropremotetype procedure on Spremovearticle procedure Spaddarticle procedure onTo remove an article from a publication Spremovearticle publicationname Spremovearticlecol publicationname Spremovearticlecol procedureTo remove a column from an article in a publication Spremoveremotetable procedure Spmodifyremotetable procedure onTo mark a table as unavailable for SQL Remote replication Spremoveremotetable tablename Sprevokeconsolidate username Sprevokeconsolidate procedureSpgrantconsolidate procedure on Sprevokeremote procedure Sprevokeremote username Spsubscription procedure Spsubscriptionreset procedure To reset all SQL Remote information for all remote usersSpsubscriptionreset Srsubscription tables to zero or Null Appendices Page 437 Types of difference Differences in functionality Differences in approach 441 Limitations for Enterprise to Enterprise replication Page Page Supported Platforms and Message Links 445 Supported message systems Supported operating systems Windows NT/2000/XP All message links 448 Symbols Index Index 450 451 Current Remote User 452 Sqlremote 453 454 LTM 455 456 Subscribebyremote 457 Remote 458 459 460 Send Every 461 462 463 Tempdb 464 465 466 467 Unix