Installation for the Existing Users If you have an existing installation of Express with Tools, SQL Server Management Studio Express, or Express with Advanced Services, and want to add the complete SQL Server Management Studio feature to your Express instance, do the following: Step 1: Download the required Microsoft SQL Server 2014 Express file to update your current SQL Server Express installation by clicking the appropriate link earlier. Step 2: Download Microsoft SQL Server 2014 Express by clicking the appropriate link earlier, run it, and follow the instructions in the setup wizard to install
What's the difference between DELETE TABLE and TRUNCATE TABLE commands?DELETE TABLE is a logged operation, so the deletion of each row gets logged in the transaction log, which makes it slow. In other word, Cursor is a database object used by applications to manipulate data in a set on a row-by-row basis, its like recordset in the ASP and visual basic
Craig Freedman 5 Jan 2009 4:08 PM With regards to seek or scan performance, the question to ask is whether there is a predicate on the partition column that can be used to enable partition elimination. Craig Freedman's SQL Server Blog 22 Aug 2008 6:50 PM In this post on partitioned tables, I mentioned that SQL Server 2008 has a much more efficient implementation Craig Freedman 22 Aug 2008 6:52 PM I decided to measure the overhead of dynamic partition elimination with a large number of partitions
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58 731 Wednesday, April 8, 2015 4:39 AM In: RE: Movie Rental Database By Grant Fritchey Hardware Discussions about SQL Server hardware and sizing your servers. 614 2,213 Wednesday, February 25, 2015 10:46 PM In: RE: Project Plan By Sachin Butala-182900 Working with Oracle Questions and comments about configuring, connecting to and troubleshooting SQL Server 7 or 2000 to Oracle databases
Create Index on Table Variable
SQL 2005 and above perform compilation at the statement level so if only one statement utilizes a temp table then that statement is the only one that gets recompiled. My query involving an inner join on a table without a PK went from 3m 23s to 17s! Reply to this comment Julianne 23 Sep 2011 at 11:07 am Great Derek! Thanks for the tip:) Reply to this comment Julianne 23 Sep 2011 at 11:06 am Greate Derek! Reply to this comment Daniel N 24 Aug 2011 at 12:28 am Awesome tip, my query batch went from 7 minutes down to 12 seconds
SQL Server Forums - Auto create History Tables and Triggers
The NonClustered was to allow for easily adding a clustered key (without having to drop one first) to support what ever queries are built to leverage the Audit table later in the development process. Extending it to 8000 resolved that issue but would still pose problems with tables that contain a very large number of columns, especially if the column names are lengthy
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When did SQL Server stop putting indexes on Foreign Key columns? - Kimberly L. Tripp
However, indexes might (for a large modification) be validated at the end (instead of row by row) so a large modification that has a failure will need to rollback at the end of the modification rather than before
Faster insights on any data Get to insights faster with a complete BI platform that speeds up how you access, analyze, clean and shape both internal and external data. Back to top SQL Server 2014 in the news Gartner Read Gartner's Magic Quadrant for Advanced Analytics Platforms Read the story Gartner Read Gartner's Magic Quadrant for Business Intelligence and Analytics Platforms Read the story Gartner Read Gartner's Magic Quadrant for Data Warehouse and Data Management Solutions for Analytics 2015 Read the story TechRadar.pro Microsoft SQL Server 2014 review: The database heads into memory for Microsoft's latest release Read the review Back to top SQL Server blog Announcing Spark for Azure HDInsight public preview 10 Jul 2015 04:10 PM by T.K
How Using GUIDs in SQL Server Affect Index Performance - SQL Server Performance
The first should be an identity column to uniquely identify the rows in the table, and the second integer column should be used to uniquely distinguish the server from other servers. The GUID is a wide column (16 bytes to be specific) and contains a unique combination of 33 uppercase and numeric characters (these are HEX value characters that range from A to F and numeric values that range between 0-9)
Clarifying LEFT and RIGHT in the defintion of a PARTITION FUNCTION in SQL Server 2005 - Kimberly L. Tripp
If November 1 comes around and you want the data for October to be added to your partitioned table and you ONLY want to show the most four months, then you will need to add October and remove June. I cannot use this column for referential integrity unless I create a composite unique key (not index) on that guid column and the datetime column again
Handling concurrent access to a key table without deadlocks in SQL Server - Database Administrators Stack Exchange
I have no idea if this will work for you, because SQL Server is closed source, so I cannot see the source code, and as such I do not know if I have tested all possible case. In general, I do not think there is a good way to determine if your T-SQL is safe from deadlocks just by looking at it or looking at the execution plan
The lack of support for the UNIQUE option is no big deal since you can always define a PRIMARY KEY or UNIQUE constraint, which create a unique index underneath the covers. Since they already did the work in the parser, Microsoft decided to extend the support for such syntax to also disk-based tables, including table variables
Is there a query to retrieve the partition ranges? In my example I am expecting to see the list of current partition ranges like Jan2011, Feb2011 Thanks. USE TestDB; GO --- Step 6 : Insert Data in Partitioned Table INSERT INTO TestTable (ID, Date) -- Inserted in Partition 1 VALUES (1,GETDATE()); INSERT INTO TestTable (ID, Date) -- Inserted in Partition 2 VALUES (11,GETDATE()); INSERT INTO TestTable (ID, Date) -- Inserted in Partition 2 VALUES (12,GETDATE()); GO Step 7 : Test Data from TestTable Query TestTable and see the values inserted in TestTable
Tips on Optimizing SQL Server Composite Indexes - SQL Server Performance
SQL Server has the ability to join two or more individual indexes and intersect them, just as if you were using a composite index, giving you the best benefits of single and composite indexes. This is because you always want to use the most selective columns at the left of the key to ensure that the composite index is selective enough to be used by the Query Optimizer
Regards, Nitin Reply Vinayak says: July 31, 2014 at 2:58 pm Good one Nitin,very easy to understand the difference between Primary Key and Composite Primary Key. Reply CoDevil says: December 20, 2014 at 12:34 pm A foreign key can be defined to reference a column of a unique constraint of another table @Eshwar V Reply Mohan Pawar says: December 26, 2014 at 3:56 pm Hi easwar, Correct me if m wrong, as per i know Foreign keys can reference Unique Keys not the Primary Key
The compile time table cardinality is stored in the plan and if the statement is executed again with the same cardinality (either due to flow of control statements or reuse of a cached plan) no recompile occurs. As a side bar, recompiles with Temp Tables can occur with the addition of data and whether the DDL for the temp table is interlaced with the DML or not
sql - How to add composite primary key to table - Stack Overflow
You can add both primary key and foreign key while creating the table: This example assumes the existence of a table (Codes) that we would want to reference with our foreign key
Foreign key relationship with composite primary keys in SQL Server 2005 - Stack Overflow
FileType 'ABC'), then you can add FileType to Table1 as a computed column: ALTER TABLE Table1 ADD FileType as 'ABC' Which you can then use in the Foreign Key
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