Partitioning is the database process where very large tables are divided into multiple smaller parts. By splitting a large table into smaller, individual tables, queries that access only a fraction of the data can run faster because there is less data to scan. The main of goal of partitioning is to aid in maintenance of... » read more
Use the Feature Selection page of the SQL Server Installation Wizard to select the components to include in an installation of SQL Server. By default, none of the features in the tree are selected. Use the information in the following tables to determine the set of features that best fits your needs. Server components Description... » read more
The following table describes the editions of SQL Server. SQL Server Editions Features Enterprise The premium offering, SQL Server Enterprise edition delivers comprehensive high-end datacenter capabilities with blazing-fast performance, unlimited virtualization, and end-to-end business intelligence – enabling high service levels for mission-critical workloads and end user access to data insights. Standard SQL Server Standard edition... » read more
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Symptoms When you use Data Definition Language (DDL) to modify a table, and then you try to save the table in Microsoft SQL Server 2008, you may receive the following message: Saving changes is not permitted. The changes that you have made require the following tables to be dropped and re-created. You have either made... » read more
Utility Explorer works inside of Management Studio, so it uses the same familiar interface that you already know. In Management Studio, to switch to the Utility Explorer, go up to the View menu, and then click on Utility Explorer. Using the SQL Server Utility application, they can gather information about the status, health and performance... » read more
The SQL Server Activity Monitor gathers information about the monitored instance and displays the data in a series of collapsible panes. Right Click Server -> Activity Monitor The Activity Monitor is split up into a couple of different panes. Overview Processes Resource Waits data file input output Recent expensive queries Active expensive queries
Waits Waits occur when system resources are busy processing other tasks, and new tasks are placed into a holding queue until resources free up. Locks on data are the only reason a task will encounter a wait. Bottlenecks and hardware resources are also common contributors to a task having to wait before proceeding. A dynamic... » read more
As we know that, in order to maintain consistency in a database, it follows ACID properties. Among these four properties (Atomicity, Consistency, Isolation and Durability) Isolation determines how transaction integrity is visible to other users and systems. It means that a transaction should take place in a system in such a way that it is... » read more
SQL Server supports both implicit and explicit transactions. Implicit transactions are initiated when the system’s session option “Implicit Transactions” is set to ON. In this state, any of a number of commands, including Create, Insert, Update, Delete, Drop, and Select will automatically begin a new transaction. To finalize the transaction, the user must specifically issue... » read more