Now we will look inside of the index using the undocumented IND command. There is a documented DMV in the SQL Server 2012 and above which shows the same result with more information, since I am using an old laptop which has SQL Server 2008 so I will use the IND command you ca...
Section 25.6.2.3, “Event Buffer Reporting in the Cluster Log” Section 27.4.2, “Event Scheduler Configuration” Section 9.3, “Example Backup and Recovery Strategy” Section 5.6, “Examples of Common Queries” Section 26.3.3, “Exchanging Partitions and Subpartitions with Tables” Section 6.5.1.5...
actionType(String) - Method in class com.oracle.bdd.microservices.preview.client.model.TransformExceptionAction actionType(String) - Method in class com.oracle.bdd.microservices.workflow.client.model.TransformExceptionAction activateOptions() - Method in class com.endeca.portal.util.DailyRollingWithMaxDate...
For example, assume that a column that is named "column1" is included in the clustered or unique index. When the column value is changed from a larger to a smaller value (such as changing the value from 20 to 16), the change tracking side table receives the insert opera...
PL/SQL, 17-2, 17-6 contrasted with procedures, 1-53, 17-2 parallel DML restrictions, 22-39 privileges for, 26-7 roles disabled in, 26-14 See also procedures SQL, 14-2 COUNT, 8-27 default column values, 8-8 in CHECK constraints, 24-16 in views, 8-12 NVL, 8-...
Understand the characteristics of the columns used in the queries. For example, an index is ideal for columns that have an integer data type and are also unique or non-null columns. For columns that have well-defined subsets of data, you can use a filtered index in SQL Server 2...
For a clustered index, the root_page column in sys.system_internals_allocation_units points to the top of the clustered index for a specific partition. SQL Server moves down the index to find the row corresponding to a clustered index key. To find a range of keys, SQL Server moves through...
Understand the characteristics of the columns used in the queries. For example, an index is ideal for columns that have an integer data type and are also unique or non-null columns. For columns that have well-defined subsets of data, you can use a filtered index in SQL Server 2008 (10.0...
For rowgroups in which 10% or more of the rows have been logically deleted, SQL Server tries to combine this rowgroup with one or more rowgroups. For example, rowgroup 1 is compressed with 500,000 rows and rowgroup 21 is compressed with the maximum of 1,048,576 rows. Rowgroup 21 ha...
Covering Index in SQL ServerLet's start by answering the question, what's a covering index? The simplest way to describe it is an index that includes every column for a specific query. Sometimes you hear this referred to as covering the query. For example, take the simple query below....