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What is history table in SQL Server?

The main Temporal table will keep only the current version of the table rows, but it will be linked automatically to another table with the same exact schema, in which the previous versions of the modified rows will be stored automatically, this table is called a History table. 23 сент. 2016 г.


What is history table in SQL?

The history table contains each previous value (the old version) for each row, if any, and the start time and end time for the period for which it was valid. The following script illustrates a scenario with employee information: SQL Copy.

What is the use of history table?

This storage of old system-period temporal table data gives you the ability to retrieve data from past points in time. In order to store row data, the history table columns and system-period temporal table columns must have the same names, order, and data types.

How do I find the history of a table in SQL Server?

How to Check SQL Server Query History1Queries are saved in the cache via system representations (sys. dm_exec_query_stats, sys. dm_exec_sql_text, and sys. ... 2Using SQL Server Profiler.3Using Extended Events.4Using the Query Store, starting from the 2016 version.5Using SQL Complete (SQL Complete\Execution History) in SSMS.

What is historical data in SQL Server?

SQL Server 2016 introduced a new feature, Temporal Tables, which allow you to keep a historical record of all of the versions of each row in a table. As rows get introduced, changed, and deleted over time, you can always see what the table looked like during a certain time period or at a specific point in time.

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