Here is the simple query that returns basic information about all tables in a database that are partitioned:
SELECT SCHEMA_NAME([schema_id]) AS [schema_name]
,t.[name] AS [table_name]
,i.[name] AS [index_name]
,i.[type_desc] AS [index_type]
,ps.[name] AS [partition_scheme]
,pf.[name] AS [partition_function]
,p.[partition_number]
,r.[value] AS [current_partition_range_boundary_value]
,p.[rows] AS [partition_rows]
,p.[data_compression_desc]
FROM sys.tables t
INNER JOIN sys.partitions p ON p.[object_id] = t.[object_id]
INNER JOIN sys.indexes i ON p.[object_id] = i.[object_id]
AND p.[index_id] = i.[index_id]
INNER JOIN sys.data_spaces ds ON i.[data_space_id] = ds.[data_space_id]
INNER JOIN sys.partition_schemes ps ON ds.[data_space_id] = ps.[data_space_id]
INNER JOIN sys.partition_functions pf ON ps.[function_id] = pf.[function_id]
LEFT JOIN sys.partition_range_values AS r ON pf.[function_id] = r.[function_id]
AND r.[boundary_id] = p.[partition_number]
GROUP BY SCHEMA_NAME([schema_id])
,t.[name]
,i.[name]
,i.[type_desc]
,ps.[name]
,pf.[name]
,p.[partition_number]
,r.[value]
,p.[rows]
,p.[data_compression_desc]
ORDER BY SCHEMA_NAME([schema_id])
,t.[name]
,i.[name]
,p.[partition_number];
The query returns the following columns:
- schema_name – name of the partitioned table schema.
- table_name – name of the partitioned table.
- index_name – name of the partitioned index.
- index_type – type of the partitioned index.
- partition_scheme - name of the partition scheme.
- partition_function – name of the partition function.
- partition_number – indicate the partition number.
- current_partition_range_boundary_value – partition actual boundary value.
- partition_rows – indicates approximate number of rows in current partition.
- data_compression_desc – Indicates the state of compression for each partition.
This example query uses following system views: sys.tables, sys.partitions, sys.indexes, sys.partition_schemes, sys.partition_functions and sys.partition_range_values.
For more information on table partitioning, see “Partitioned Tables and Indexes” on MSDN website.
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