SQLDBA- How to verify the CDC is enabled data bases or tables

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How to  verify the CDC is enabled data bases or tables

The following query  will get list  of  CDC enabled data bases 

SELECT

    name AS DatabaseName,

    is_cdc_enabled

FROM sys.databases

WHERE is_cdc_enabled = 1;


The following query  will get list  of  CDC enabled  tables  with in the  database. 


USE <DB Name>;  -- Replace with actual DB name

GO


SELECT 

    s.name AS SchemaName,

    t.name AS TableName,

    c.capture_instance,

    c.supports_net_changes,

    c.start_lsn,

    c.end_lsn

FROM 

    cdc.change_tables c

JOIN 

    sys.tables t ON c.source_object_id = t.object_id

JOIN 

    sys.schemas s ON t.schema_id = s.schema_id;



Below will get the list of tables which  are enabled CDC from all data bases. 

DECLARE @dbName NVARCHAR(128)

DECLARE @sql NVARCHAR(MAX)

-- Cursor to loop through all CDC-enabled databases

DECLARE db_cursor CURSOR FOR

SELECT name FROM sys.databases WHERE is_cdc_enabled = 1

OPEN db_cursor

FETCH NEXT FROM db_cursor INTO @dbName

WHILE @@FETCH_STATUS = 0

BEGIN

    PRINT 'Checking CDC tables in database: ' + @dbName

    SET @sql = '

    USE [' + @dbName + '];

    IF EXISTS (SELECT 1 FROM sys.tables WHERE is_tracked_by_cdc = 1)

    BEGIN

        SELECT 

            ''' + @dbName + ''' AS DatabaseName,

            s.name AS SchemaName,

            t.name AS TableName,

            c.capture_instance,

            c.supports_net_changes,

            c.start_lsn,

            c.end_lsn

        FROM 

            cdc.change_tables c

        JOIN 

            sys.tables t ON c.source_object_id = t.object_id

        JOIN 

            sys.schemas s ON t.schema_id = s.schema_id;

    END

    ELSE

    BEGIN

        PRINT ''No CDC-enabled tables found in database: ' + @dbName + '''

    END

    '

    EXEC sp_executesql @sql

    FETCH NEXT FROM db_cursor INTO @dbName

END

CLOSE db_cursor

DEALLOCATE db_cursor

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