SQL Server CDC (Change Data Capture) Existing Data Seed
I have an SQL Server Database with 100's of tables with as many rows in each and I'm turning on CDC for some reporting. Since data was created/inserted BEFORE turning on CDC, the CDC tables are current...
View ArticleChange Tracking across several Tables
I'm looking into providing DB level change tracking within my system. I need to be able to track changes at an entity level, rather than just individual tables.Right now, we have triggers on each of...
View ArticleCDC - I cannot disable that on the second instance
I have change data capture enabled for most of the tables in one of my databases. Database is hosted on SQL Server instance with version 2016.I have some testing to be done, so I wanted to restore...
View ArticleAnyone using CDC and having performance issues extracting net_changes? We...
So 8 tables are being tracked with CDC "@support_net_changes=1". 7 of them are ok in regards to performance. As some of these tables are only 10-40 million rows and data doesn't change that...
View ArticleCDC Capture Instance or State to ensure referential integrity
I'm implementing an SSIS/CDC based data warehouse solution and have a question relating to referential integrity on the destination database. As an example, I have INVENTORY_TRANSACTION in one table...
View ArticleCDC Capture job fails with 'Cannot insert duplicate key row in object...
When the CDC Capture job runs, it fails with this error:Cannot insert duplicate key row in object cdc.Table_CT' with unique index 'CT Clustered Index.This index is a SQL Server CDC created index on...
View ArticleAWS DMS Task getting failed after completion with error as AlwaysOn BACKUP-ed...
I have created DMS task for migrating data from one RDS MS SQL Server instance to another RDS MS SQL Server instance with "Full load + ongoing replication", and data copied to target instance but...
View ArticleDo old inserts get treated as new CDC events during node bootstrap?
When a new Cassandra node bootstraps and receives data from existing tables for which Change Data Capture (CDC) is enabled, do old inserts get treated as new CDC events? I don't see any reference to...
View ArticleCDC Error - NULL Source Schema and Source Table - Error msg on both enable...
Today I re-enabled CDC on the primary node of an availability group. When the jobs were created the cleanup job failed with the following error:Could not delete change table entries made obsolete by a...
View ArticleSQL Server: Querying Change Data Tables directly?
I am messing around with Change Data Capture on SQL Server.Documentation for table containing the change data (cdc.<capture_instance>_CT) says:We recommend that you do not query the system tables...
View ArticleCDC cleanup job -- history
On SQL Server 2019, I enabled CDC on some tables about 2 days ago. The CDC cleanup job is scheduled to run every day and the retention period is 3 days.When I checked the job history of the cleanup...
View Article_CT records with identical __$seqval
There is a CDC enabled table of the following form:create table dbo.foo ( id int not null primary key, a char(1), b char(1), c char(1), d char(1), e char(1), updated datetime not null default...
View Articleis it a good idea to use GTID for tenant meta data?
i want To build an audit log for tracking user activity using Kafka Connect CDC (Change Data Capture) and MySQL, and set a custom GTID (Global Transaction Identifier) before each transaction, here’s a...
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Bug in how CDC jobs record run_duration in sysjobhistory
Normally SQL Agent job history is recorded in msdb.dbo.sysjobhistory with run_duration in the format DD:MM:HH:SS, -- so for example a value of 105 means 1 minute and 5 seconds.However the CDC capture...
View ArticleUnable to alter CDC tables
I have an issue with being unable to alter a CDC table that previously caused us no issue.We run alter statements on our cdc tables to add a column to the tables that we now are starting to face an...
View ArticleTable partitioning for CDC enabled table
Is there any issue you have faced enabling table partitioning for CDC enabled tables?I have done some quick testing and table partitioning for CDC enabled tables is working well in terms of switching...
View ArticleWeird behaviour in CDC SQL Server - could be a bug?
Something I can't understand this behavior and it seems to me bug in SQL Server: I have enabled CDC for table Editorial_schedule_index_cards, now when I update a record from this table with this...
View ArticleHow can I make CDC stop capturing a seemingly infinite amount of agent job...
My most important production server uses Change Data Capture (CDC) a lot, maybe for about 25 tables. The relevant agent job shows well over 1,000 steps as in progress. Because they are in progress,...
View ArticleRestore of Database with CDC Failing
I'm taking a backup of a SQL Server 2019 database with CDC enabled, and trying to restore it to a different instance. I don't need CDC on target database so I don't have the "keep_cdc" option in the...
View ArticleReplace Managed Instance replication with CDC and ADF or Azure Function?
The company I work for put everything on Azure. We use SQL Server replication to move data from one big collection db server (Managed Instance) to our other database servers (say 20 in total).Every day...
View ArticleCDC is causing SQL Dumps
Some background. This database was using replication on a previous server version 2012. The replication stopped working. We then upgraded to 2019. I was unable to remove replication objects on the...
View Articlepostgres 11.3 checksum validation post migration
I am in the process of migrating our AWS RDS postgresql from one account to another with zero downtime. I am going with pg_dump/pg_restore + AWS CDC for ongoing replication.I am looking for a way to...
View ArticleChange Data Capture SSIS not picking changes
I am trying to implement change data capture in SQL Server 2012. I enabled it at database and table level. when i try to update the table, CDC_CT captures the changes. However when i am using SSIS CDC...
View ArticleHow do you correlate SQL Database Audit spec's log column transaction_id with...
How do you correlate SQL Database Audit log column "transaction_id" with a LSN either from the trans log or a CDC capture table?I am trying to do this because cdc only captures the data changes, while...
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Change Data Capture from SQL Server to a Postgres database
I want to get change data capture working using a SQL Server database as a source and PostgreSQL as a sink.+----------------++----------------++------------------+| SQL Server | ----> | Debezium...
View ArticleSQL Server modification timestamps
I'm implementing ingestion job from SQL Server 2016. For performance reasons we want to implement incremental loads.Few facts:Customer has read replica as a part of always on availability group used...
View ArticleIBM Infosphere CDC - automation of index handling before/after refresh
IBM Infospehere CDC Data Replication - how to define a subscription's refresh operations' table related indexes, to automaticallydrop indexes on the target table before load operationrecreate indexes...
View ArticleRunning sp_repldone on a secondary node of an Availability Group with @reset...
I have a two-node SQL Server 2019 Availability Group with a database that has CDC enabled for several tables. The CDC is used to keep track of transactions that have not been captured for population...
View ArticleRestoring Azure SQL MI Backup with CDC to SQL Server 2022 Breaks CDC Metadata
I restore a database with Change Data Capture (CDC) enabled from Azure SQL Managed Instance to SQL Server 2022 Developer Edition.On restoring, I get this error:Could not update metadata that indicates...
View ArticleUpdate mask evaluation will be disabled in net_changes_function because the...
When I enable CDC on a database table on a SQL Server instance that has CLR disabled, I see this exception in the logging:Update mask evaluation will be disabled in net_changes_function because the CLR...
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