What is an index? Indexes help us to find data faster. It can be created on a single column or a combination of columns. A table index helps to arrange the values of one or more columns in a specific order. Syntax: CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name ON...
This change was introduced in SQL Server 2022 (all editions) and included in Azure SQL Database and Azure SQL Managed Instance. Improved virtual log file (VLF) algorithms Virtual File Log (VLF) is an abstraction of the physical transaction log. Having a large number of small VLFs based on ...
Integration Services (SSIS) SQL Server Integration Services is a platform for building high performance data integration solutions, including packages that provide extract, transform, and load (ETL) processing for data warehousing. Analysis Services (SSAS) SQL Server Analysis Services is an analytical da...
An in-memory table can have one columnstore index. You can create it when the table is created or add it later withALTER TABLE (Transact-SQL). Previously, only a disk-based table could have a columnstore index. A clustered columnstore index can have one or more nonclustered rowstore indexe...
Has columnstore index enhancements for sorting and Always On Availability Group support. New security features: Always Encrypted: When enabled, only the application that has the encryption key can access the encrypted sensitive data in the SQL Server 2016 database. The key is never passed to SQL...
Rowset functions Return an object that can be used like table references in a SQL statement. Scalar functions Operate on a single value and then return a single value. Scalar functions can be used wherever an expression is valid. Categories of scalar functions Expand table Function categoryDescr...
Has columnstore index enhancements for sorting and Always On Availability Group support. New security features: Always Encrypted:When enabled, only the application that has the encryption key can access the encrypted sensitive data in the SQL Server 2016 database. The key is never passed to SQL Se...
OPTIMIZE_FOR_SEQUENTIAL_KEYTurns on an optimization within the SQL Server Database Engine that helps improve throughput for high-concurrency inserts into the index. This option is intended for indexes that are prone to last-page insert contention, which is typically seen with indexes that have a ...
For information about availability groups on Linux, see Availability groups for SQL Server on Linux.In an HA configuration, a cluster role is created for every availability group that you create. The WSFC cluster monitors this role to evaluate the health of the primary replica. The quorum for ...
Download SQL Server 2019 Reporting Services from the Microsoft Download Center. Azure SQL Managed Instance support You can now host a database catalog used for SSRS in an Azure SQL Managed Instance (MI) either on a virtual machine (VM) or in your data center. Support is limited to database...