sys.sp_cdc_change_job (Transact-SQL)
Modifies the configuration of a change data capture cleanup or capture job in the current database. To view the current configuration of a job, query the dbo.cdc_jobs table, or use sp_cdc_help_jobs.
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Transact-SQL Syntax Conventions
Składnia
sys.sp_cdc_change_job [ [ @job_type = ] 'job_type' ]
[ , [ @maxtrans = ] max_trans ]
[ , [ @maxscans = ] max_scans ]
[ , [ @continuous = ] continuous ]
[ , [ @pollinginterval = ] polling_interval ]
[ , [ @retention ] = retention ]
[ @threshold = ] 'delete threshold'
Arguments
[ @job_type= ] 'job_type'
Type of job to modify. job_type is nvarchar(20) with a default of 'capture'. Valid inputs are 'capture' and 'cleanup'.[ @maxtrans ] **=**max_trans
Maximum number of transactions to process in each scan cycle. max_trans is int with a default of NULL, which indicates no change for this parameter. If specified, the value must be a positive integer.max_trans is valid only for capture jobs.
[ @maxscans ] **=**max_scans
Maximum number of scan cycles to execute in order to extract all rows from the log. max_scans is int with a default of NULL, which indicates no change for this parameter.max_scan is valid only for capture jobs.
[ @continuous ] **=**continuous
Indicates whether the capture job is to run continuously (1), or run only once (0). continuous is bit with a default of NULL, which indicates no change for this parameter.When continuous = 1, the sp_cdc_scan job scans the log and processes up to (max_trans * max_scans) transactions. It then waits the number of seconds specified in polling_interval before beginning the next log scan.
When continuous = 0, the sp_cdc_scan job executes up to max_scans scans of the log, processing up to max_trans transactions during each scan, and then exits.
If @continuous is changed from 1 to 0, @pollinginterval is automatically set to 0. A value specified for @pollinginterval other than 0 is ignored.
If @continuous is omitted or explicitly set to NULL and @pollinginterval is explicitly set to a value greater than 0, @continuous is automatically set to 1.
continuous is valid only for capture jobs.
[ @pollinginterval ] **=**polling_interval
Number of seconds between log scan cycles. polling_interval is bigint with a default of NULL, which indicates no change for this parameter.polling_interval is valid only for capture jobs when continuous is set to 1.
[ @retention ] **=**retention
Number of minutes that change rows are to be retained in change tables. retention is bigint with a default of NULL, which indicates no change for this parameter. The maximum value is 52494800 (100 years). If specified, the value must be a positive integer.retention is valid only for cleanup jobs.
[ @threshold= ] 'delete threshold'
Maximum number of delete entries that can be deleted using a single statement on cleanup. delete threshold is bigint with a default of NULL, which indicates no change for this parameter. delete threshold is valid only for cleanup jobs.
Return Code Values
0 (success) or 1 (failure)
Result Sets
None
Uwagi
If a parameter is omitted, the associated value in the dbo.cdc_jobs table is not updated. A parameter set explicitly to NULL is treated as though the parameter is omitted.
Specifying a parameter that is invalid for the job type will cause the statement to fail.
Changes to a job do not take effect until the job is stopped by using sp_cdc_stop_job and restarted by using sp_cdc_start_job.
Permissions
Requires membership in the db_owner fixed database role.
Examples
A. Changing a capture job
The following example updates the @job\_type, @maxscans, and @maxtrans parameters of a capture job in the AdventureWorks2012 database. The other valid parameters for a capture job, @continuous and @pollinginterval, are omitted; their values are not modified.
USE AdventureWorks2012;
GO
EXECUTE sys.sp_cdc_change_job
@job_type = N'capture',
@maxscans = 1000,
@maxtrans = 15;
GO
B. Changing a cleanup job
The following example updates a cleanup job in the AdventureWorks2012 database. All valid parameters for this job type, except @threshold, are specified. The value of @threshold is not modified.
USE AdventureWorks2012;
GO
EXECUTE sys.sp_cdc_change_job
@job_type = N'cleanup',
@retention = 2880;
GO