SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 

Content with tag Performance Rss

<< Newer    Items 21 to 40 of 101    Older >>
 

Compression and its Effects on Performance

Erin Stellato takes a look at the new COMPRESS and DECOMPRESS functions, comparing their impact on space and performance to traditional data compression.  Read more...
By Additional Articles 2017/02/15 | Source: SQLPerformance.com | Category: compression
Rating: (not yet rated)  Rate this |   Briefcase | 6,170 reads

How Incorrect SQL Server Table Statistic Estimates Can Cause Slow Query Execution

Ben Snaidero explains that if you are updating your SQL Server table statistics nightly, but still seeing occasional poor performance with some of the queries being executed against my database, statistics could be the issue.  Read more...
By Additional Articles 2017/02/09 | Source: MSSQLTips.com | Category: performance
Rating: (not yet rated)  Rate this |   Briefcase | 3,923 reads

Performance of the SQL MERGE vs. INSERT/UPDATE

The SQL MERGE statement offers convenience, safety and elegance, but how does it perform compared to other methods?  Read more...
By Dwain Camps 2017/02/03 (first published: 2013/10/28) | Source: SQLServerCentral.com | Category: merge
Rating: |  Discuss |   Briefcase | 37,133 reads

Disconnecting SQL Server connections after query execution

One way to improve SQL Server performance is to use as few resources as possible. In this post Rahul Mehta demonstrates how you can do this by disconnecting queries post-execution with a simple change in SSMS.  Read more...
By Additional Articles 2016/12/21 | Source: MSSQLTips.com | Category: performance
Rating: (not yet rated)  Rate this |   Briefcase | 5,426 reads

Query Performance comparison between instances

Execute at source, and will generate an output with TSQL commands to create temp tables filled with top 50 long lasting queries from all databases. Then execute output at destination and will do the same and show comparison of matching queries!!   Read more...
By Rodrigo Acosta 2016/12/19 | Source: SQLServerCentral.com | Category: query
Rating: |  Discuss |   Briefcase | 626 reads

Better Coding, More Savings

The way we write code impacts our users, but it can also impact our wallet, especially in cloud computing. Steve Jones wonders how many people bother to profile and test their code.  Read more...
By Steve Jones 2016/12/19 | Source: SQLServerCentral.com | Category: editorial
Rating: |  Discuss |   Briefcase | 345 reads

5 Advantages of Load Balancing For IT Companies

As an IT company, it is crucial that you maintain uptime and monitor the performance of various processes. By making database load balancing a key element, you can ensure that your processes and websites run smoothly. Tony Branson explains.  Read more...
By Additional Articles 2016/11/24 | Source: Database Journal | Category: performance
Rating: (not yet rated)  Rate this |   Briefcase | 5,505 reads

What's Your Backup Speed?

This week Steve Jones has a bit of a competition. Share with him how fast you can back up a 1TB database.  Read more...
By Steve Jones 2016/11/04 | Source: SQLServerCentral.com | Category: editorial
Rating: (not yet rated) |  Discuss |   Briefcase | 87 reads

Server Hardware or Coffee?

Today Steve Jones looks at the relative cost of hardware and how we sometimes cause ourselves issues by not spending enough.  Read more...
By Steve Jones 2016/11/03 | Source: SQLServerCentral.com | Category: editorial
Rating: (not yet rated) |  Discuss |   Briefcase | 79 reads

Introducing the Set-based Loop

Set-based programming doesn’t mean “no loops” or a single statement. Finding out the best ways to traverse a full hierarchy.  Read more...
By Luis Cazares 2016/10/07 (first published: 2015/07/27) | Source: SQLServerCentral.com | Category: set-based loop
Rating: |  Discuss |   Briefcase | 18,089 reads

Report overlapping jobs

This script reports jobs which are running when another job is also running. This could be a reason for performance degradations.  Read more...
By Wilfred van Dijk 2016/07/29 | Source: SQLServerCentral.com | Category: sqlagent
Rating: |  Discuss |   Briefcase | 1,986 reads

Finding and Eliminating Duplicate or Overlapping Indexes

Duplicate & Overlapping Indexes can be a drag on write speed and disk resources. How do we find and eliminate them quickly and effectively?  Read more...
By Edward Pollack 2016/07/08 (first published: 2014/06/16) | Source: SQLServerCentral.com | Category: indexing
Rating: |  Discuss |   Briefcase | 12,523 reads

A Comparison of JDBC Drivers for MySQL

A brief comparison of three different JDBC Drivers built for connecting with MySQL  Read more...
By Jerod Johnson 2016/05/19 | Source: SQLServerCentral.com | Category: jdbc
Rating: |  Discuss |   Briefcase | 858 reads

Join Operations – Hash Match

The way in which SQL Server chooses to join your tables in a query can dramatically affect performance. In this article, Jason Brimhall explains how a hash match works and shows some performance numbers.  Read more...
By Jason Brimhall 2016/05/13 (first published: 2014/03/04) | Source: SQLServerCentral.com | Category: execution plans
Rating: |  Discuss |   Briefcase | 13,897 reads

Performance Surprises and Assumptions : DATEADD()

Aaron Bertrand explores yet another scenario where a date/time function seems to cause the optimizer to behave unexpectedly.  Read more...
By Additional Articles 2016/05/12 | Source: SQLPerformance.com | Category: dateadd
Rating: (not yet rated)  Rate this |   Briefcase | 4,717 reads

GUI Enhancement on Instant File Initialization (IFI) in SQL Server 201

Ability to enable Instant File Initialization during the installation of SQL Server 2016.  Read more...
Rating: |  Discuss |   Briefcase | 1,150 reads

Reaping the benefits of the Window functions in T-SQL

Exploring the potential benefits of the T-SQL Window functions (OVER, LAG, and LEAD) in this piece. You can learn how to achieve up to 50% performance boost by replacing a single function call.   Read more...
By Eirikur Eiriksson 2016/04/22 (first published: 2014/03/24) | Source: SQLServerCentral.com | Category: sql server 2012
Rating: |  Discuss |   Briefcase | 13,715 reads

Performance Surprises and Assumptions: STRING_SPLIT

SQL Server 2016 RC0 introduces a new native string splitting function, STRING_SPLIT. In this article, Aaron Bertrand compares its performance to existing methods.  Read more...
By Additional Articles 2016/04/06 | Source: SQLPerformance.com | Category: string_split
Rating:  Rate this |   Briefcase | 3,901 reads

Sparse Columns in SQL Server : Impact on Time & Space

Erin Stellato (@erinstellato) looks into sparse columns in SQL Server – the changes to space requirements and the impact on the write portion of your workload.  Read more...
By Additional Articles 2016/03/15 | Source: SQLPerformance.com | Category: performance
Rating: (not yet rated)  Rate this |   Briefcase | 3,433 reads

Foreign Key Indexes and Binding

Understand what FK's do and how they use indexes. Then use my script to see if they're using good indexes.  Read more...
By Steve Hood 2016/02/10 | Source: SQLServerCentral.com | Category: foreign keys (fk)
Rating: |  Discuss |   Briefcase | 3,282 reads
<< Newer    Items 21 to 40 of 101    Older >>
 
Tags
t-sql (10)    
blogs (8)    
execution plans (7)    
editorial (6)    
indexing (6)    
administration (5)    
tuning (5)    
sql server 2014 (3)    
cardinality estimates (2)    
comparison (2)    
hash match (2)    
merge (2)    
optimization (2)    
query optimizer (2)    
sql server 2016 (2)    
sql trace (2)    
statistics (data) (2)    
trace flags (2)    
window functions (2)    
actual execution plan (1)    
actual plan (1)    
agent jobs (1)    
async_network_io (1)    
azure (1)    
backup (1)    
best practices (1)    
binary flags (1)    
binding (1)    
bit operations (1)    
bottle necks (1)    
compression (1)    
computed columns (1)    
conditional split (1)    
consolidation (1)    
counter (1)    
cpu usage data (1)    
cursors (1)    
cxpacket (1)    
data mining (1)    
database design (1)    
database development (1)    
database performance (1)    
database weekly (1)    
dateadd (1)    
debug (1)    
deleted (1)    
devops (1)    
distinct (1)    
dm_os_performance_counters (1)    
dmvs (1)    
duplicates (1)    
effective dates (1)    
estimated plan (1)    
foreign keys (fk) (1)    
friday poll (1)    
group by (1)    
hardware (1)    
hekaton (1)    
high cpu (1)    
i/o performance (1)    
identity property (1)    
in-line memory (1)    
in-memory (1)    
inserted (1)    
instant file initialization (ifi) (1)    
integration services (ssis) (1)    
jdbc (1)    
lag (1)    
lead (1)    
linux (1)    
load balancing (1)    
lookup table (1)    
machine learning (ml) (1)    
microsoft sql server (1)    
migration (1)    
network (1)    
nvarchar (1)    
orm (1)    
over clause (1)    
page life expectancy (1)    
page splits (1)    
parallelism (1)    
performance and tuning (1)    
query (1)    
query optimization (1)    
r language (1)    
r statistics (1)    
rcte (1)    
referential integrity (1)    
reporting services (ssrs) (1)    
schedule (1)    
scope_identity (1)    
set-based loop (1)    
software development (1)    
sparse columns (1)    
sql (1)    
sql server 2005 (1)    
sql server 2012 (1)    
sqlagent (1)    
sqlh2 (1)    
sqlio (1)    
sqlpass (1)    
sqlprep (1)    
sqlserver2008r2 (1)    
string_split (1)    
tally table (1)    
tips (1)    
tools (1)    
truncate (1)    
union all (1)    
update (1)    
upgrade (1)    
varchar (1)    
vnext (1)    
wait events (1)