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Questions tagged [change-data-capture]

Change data capture (CDC) encompasses database design patterns to keep track of changed data and perform actions with it.

In databases, change data capture (CDC) is a set of software design patterns used to determine (and track) the data that has changed so that action can be taken using the changed data. Also, Change data capture (CDC) is an approach to data integration that is based on the identification, capture and delivery of the changes made to enterprise data sources.

CDC solutions occur most often in data-warehouse environments since capturing and preserving the state of data across time is one of the core functions of a data warehouse, but CDC can be utilized in any database or data repository system.

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How to implement CDC in Cassandra?

I am trying to use CDC in Cassandra tried using incremental backup as mentioned in this link but the format of SSTables is very weired for the composite keys.Is there any way to implement CDC in cassandra. Any pointers will be very useful.
Sachin Janani
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To find updated column list and data using CDC

I am creating a setup to maintain a table with historical data using CDC. Below is the script I have written: create table dbo.Name (ID int not null primary key clustered identity(1,1), Col1 nvarchar(50) not null constraint DF_Col1 default…
whywake
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Change Data Capture (CDC) cleanup job only removes a few records at a time

I'm a beginner with SQL Server. For a project I need CDC to be turned on. I copy the cdc data to another (archive) database and after that the CDC tables can be cleaned immediately. So the retention time doesn't need to be high, I just put it on 1…
Kim
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Accurately updating LastUpdatedOn datetime2 column in SQL Server

I want to update LastUpdatedOn datetime2 column every time a row is updated in a SQL Server table. To accomplish this, I was thinking of using an After Update trigger to set LastUpdatedOn to sysutcdatetime(). This trigger is also responsible for…
Mark13426
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SQL Dependency vs Change Data Capture (CDC)

I am using CDC for database change notification. But some suggested to not use CDC. I found this other option SQL Dependency. Which one is better option among SQL Dependency and CDC?
Srinivas
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Materialized view or CDC?

I have a view on two tables (stored using SQL 2008) with millions of records. CREATE VIEW VwSalesAge AS SELECT Transactions.ID ,Transactions.Amount ,Customer.ID ,Customer.Name ,Customer.Age …
Faiz
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I want to keep track of my sql data changes

I want to keep track of changes occur during execution a specific stored procedure like SP_Integration. SP_Integration does update in many tables. I want to track the changes during integration in schema like: TableName, ColumnName, OldValue,…
Habib Sheikh
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SQL Server's Change Tracking / Change Data Capture with tables without primary keys?

I have to monitor one table in a database for changes and replicate them to some table in another database. For some reason, I can not modify the structure of original database, so I can't use triggers, or create constraints, etc. Change Tracking…
TX_
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Cannot restore CDC-enabled DB on Express Edition

While restoring database I got this error SQL Server cannot load database 'XXX' because Change Data Capture is enabled. The currently installed edition of SQL Server does not support Change Data Capture. Either disable Change Data Capture in the…
Sujan
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Change Data Capture and SQL Server Analysis Services

I'm designing a database application where data is going to change over time. I want to persist historical data and allow my users to analyze it using SQL Server Analysis Services, but I'm struggling to come up with a database schema that allows…
Raymond Saltrelli
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Find no of rows inserted/updated/deleted from a table of SQLServer

I have database in SQL Server. there are many tables present. The database is CDC activated. I would like to see how many rows are inserted/updated/deleted into the table/tables in a day. Are there any system table/tables present that keep track of…
Deba2115126
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How to apply CDC?

Please how i can apply CDC(change data capture) for database that i readed using spark and then save it as parquet into HADOOP HDFS. this is the code: spark = SparkSession \ .builder \ .appName("Ingest") \ .master("local[*]")…
USER_DY
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Use SQL Server as Subscriber PostgreSQL as publisher

I have a rather large PostgreSQl database. This server is set up as a publisher. Now I want to set up MSSQL server as a subscriber to this publisher, is that possible? PostgreSQL = 10.4 MSSQL = 2017
Henrov
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How to update the origin table in the CDC workflow (via SSIS)?

I have a CDC process setup, whereby TableA's additional rows (or updates) are automatically picked up by an ETL and put into a TableB TableA >>CDC>> TableB The CDC works fine, except I want to update the first table once the CDC process is finished.…
LearnByReading
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Develop algorithm for determining data availability

We are using a Change Data Capture tool to migrate source data to a target database in near real-time. The challenge is to identify as accurately as possible the data migration latency that exists between source and target. The latency reporting…
Constantin
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