Use this function to find the largest consumers of the version store. Applies to the version store in tempdb only. For more information, see sys.dm_tran_top_version_generators (Transact-SQL). sys.dm_tran_version_store. Returns a virtual table that displays all versi...
Note: Column-value integrity checks are enabled by default and don't require the DATA_PURITY option. For databases upgraded from earlier versions of SQL Server, column-value checks aren't enabled by default until DBCC CHECKDB WITH DATA_PURITY has been run error free on the database at leas...
Create or alter a table or index and specify the partition scheme as the storage location, along with the column that will serve as the partitioning column. Note Partitioning is fully supported in Azure SQL Database. Because only thePRIMARYfilegroup is supported in Azure SQL Database, all parti...
The Length property for the literal value assigned to the $lit variable contains the value 16. You can find out the members and properties for any variable by piping the variable to the Get-Member cmdlet like this (results are condensed): PowerShell Copy PS> $lit | Get-Member TypeName:...
especially if there are many columns involved or if the columns contain a large data type. A single statement may also cause page splits if the fill factor is high or if an UPDATE statement is filling out a column with a wider value than had been allocated. In such circumstances, it can...
An index is a database object that contains an entry for each value that appears in the indexed column(s) of the table or cluster and provides direct, fast access to rows. Indexes are automatically created on primary key columns; however, you must create indexes on other columns to gain ...
When you add an asterisk character to your SQL query, it tells the query that you want to include all the columns of data in your results. In the Massachusetts example we‘ve been using, we’ve only had two column names: first_name and last_name. But let's say we had 15 columns ...
In SQL Server, a nonclustered index is created by default, unless specified otherwise.Note SQL Server allows only one row to contain the value NULL for the complete unique key (single or multiple column index), while Oracle allows any number of rows to contain the value NULL for the ...
In the final example, you insert a row into database tabledepartment. The varray constructorProjectList()provides a value for columnprojects. BEGININSERT INTO departmentVALUES(60, 'Security', 750400,ProjectList(Project(1, 'Issue New Employee Badges', 9500),Project(2, 'Find Missing IC Chips',...
The function defines the partition boundaries, as well as the partition in which the first value should be placed. In the case of a LEFT partition function, the first value will act as an upper boundary in the first partition. In the case of a RIGHT partition function, the first value ...