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title description author ms.author ms.reviewer ms.date ms.service ms.subservice ms.topic f1_keywords helpviewer_keywords dev_langs
ALTER SERVICE (Transact-SQL)
ALTER SERVICE (Transact-SQL)
markingmyname
maghan
randolphwest
04/12/2022
sql
t-sql
reference
ALTER SERVICE
ALTER_SERVICE_TSQL
modifying services
contracts [Service Broker], modifying
ALTER SERVICE statement
services [Service Broker], modifying
TSQL

ALTER SERVICE (Transact-SQL)

[!INCLUDE SQL Server - ASDBMI]

Changes an existing service.

:::image type="icon" source="../../includes/media/topic-link-icon.svg" border="false"::: Transact-SQL syntax conventions

Syntax

ALTER SERVICE service_name   
   [ ON QUEUE [ schema_name . ]queue_name ]   
   [ ( < opt_arg > [ , ...n ] ) ]  
[ ; ]  
  
<opt_arg> ::=  
   ADD CONTRACT contract_name | DROP CONTRACT contract_name

[!INCLUDEsql-server-tsql-previous-offline-documentation]

Arguments

service_name
Is the name of the service to change. Server, database, and schema names cannot be specified.

ON QUEUE [ schema_name. ] queue_name
Specifies the new queue for this service. [!INCLUDEssSB] moves all messages for this service from the current queue to the new queue.

ADD CONTRACT contract_name
Specifies a contract to add to the contract set exposed by this service.

DROP CONTRACT contract_name
Specifies a contract to delete from the contract set exposed by this service. [!INCLUDEssSB] sends an error message on any existing conversations with this service that use this contract.

Remarks

When the ALTER SERVICE statement deletes a contract from a service, the service can no longer be a target for conversations that use that contract. Therefore, [!INCLUDEssSB] does not allow new conversations to the service on that contract. Existing conversations that use the contract are unaffected.

To alter the AUTHORIZATION for a service, use the ALTER AUTHORIZATION statement.

Permissions

Permission for altering a service defaults to the owner of the service, members of the db_ddladmin or db_owner fixed database roles, and members of the sysadmin fixed server role.

Examples

A. Changing the queue for a service

The following example changes the //Adventure-Works.com/Expenses service to use the queue NewQueue.

ALTER SERVICE [//Adventure-Works.com/Expenses]  
    ON QUEUE NewQueue ;

B. Adding a new contract to the service

The following example changes the //Adventure-Works.com/Expenses service to allow dialogs on the contract //Adventure-Works.com/Expenses.

ALTER SERVICE [//Adventure-Works.com/Expenses]  
    (ADD CONTRACT [//Adventure-Works.com/Expenses/ExpenseSubmission]) ;

C. Adding a new contract to the service, dropping existing contract

The following example changes the //Adventure-Works.com/Expenses service to allow dialogs on the contract //Adventure-Works.com/Expenses/ExpenseProcessing and to disallow dialogs on the contract //Adventure-Works.com/Expenses/ExpenseSubmission.

ALTER SERVICE [//Adventure-Works.com/Expenses]  
    (ADD CONTRACT [//Adventure-Works.com/Expenses/ExpenseProcessing],   
     DROP CONTRACT [//Adventure-Works.com/Expenses/ExpenseSubmission]) ;

D. Altering the owner of a service

The following example changes the owner of //Adventure-Works.com/Expenses to the dbo user.

ALTER AUTHORIZATION ON SERVICE::[//Adventure-Works.com/Expenses] TO dbo ;
GO

See also