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First, it loads new fact data into a fresh, empty table named Froyo Sales Staging.Then, they switch the single partition out of Froyo Sales Staging and into the partitioned table Froyo Sales.There was additional blocking and deletes slowed performance significantly.To solve these problems, the Froyo team implemented table partitioning. Each night, the Froyo team loads data with an automated process.
After covering the basics of table partitioning, this is usually the first question people have: “Is my table big enough?
The SQL Server query optimizer may direct a query to only a single partition, multiple partitions, the whole table.
Using fewer partitions than the entire table is called “partition elimination.” Statistics are maintained for the entire partitioned table or index— you don’t get additional steps in your histogram for each partition.
Each chunk, or partition, has the same columns– just a different range of rows. This means a partitioned heap, clustered index, or non-clustered index can be referenced as a single structure although it’s stored in independent physical partitions.
In other words, you don’t need to change any code in the calling applications. More on this later.) Contoso Corporation’s Froyo Division has a 2TB database named Froyo Reports.
Each day, 10 million rows of sales data are loaded into a table named Froyo Sales.