# 3.1.2 - Partitioning and Clustering

:clock4:  *Estimated time spent on this lesson | \~15 min*

Youtube Video | \~8 min

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<https://www.youtube.com/watch?v=-CqXf7vhhDs&list=PL3MmuxUbc_hJed7dXYoJw8DoCuVHhGEQb&index=28>
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:writing\_hand: In this video we will learn more about partitioning and clustering and when to use one over the other.&#x20;

:grey\_exclamation:You can cluster for up to 4 fields! Also, you will likely only want to do partitioning and clustering if data size is larger than 1 GB, otherwise it may actually be more costly and won't save time. <mark style="background-color:blue;">BigQuery</mark> automatically reclusters the table as new data comes in.

If you use SQL server, here are some helpful resources

:books: MS SQL Server info&#x20;

{% embed url="<https://learn.microsoft.com/en-us/sql/relational-databases/partitions/partitioned-tables-and-indexes?view=sql-server-ver16>" %}
<https://learn.microsoft.com/en-us/sql/relational-databases/partitions/partitioned-tables-and-indexes?view=sql-server-ver16>
{% endembed %}

:vhs: <https://www.youtube.com/watch?v=Rxu3IenrMBI>


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