Related posts about sql

• SQL SERVER – Concat Strings in SQL Server using T-SQL – SQL in Sixty Seconds #035 – Video

  as seen on SQL Authority - Search for 'SQL Authority'
  Concatenating  string is one of the most common tasks in SQL Server and every developer has to come across it. We have to concat the string when we have to see the display full name of the person by first name and last name. In this video we will see various methods to concatenate the strings. SQL… >>> More

• SQL SERVER – Concat Function in SQL Server – SQL Concatenation

  as seen on SQL Authority - Search for 'SQL Authority'
  Earlier this week, I was delivering Advanced BI training on the subject of “SQL Server 2008 R2″. I had great time delivering the session. During the session, we talked about SQL Server 2010 Denali. Suddenly one of the attendees suggested his displeasure for the product. He said, even though… >>> More

• Error with SQL Server Setup 2012 on Windows 2012

  as seen on Server Fault - Search for 'Server Fault'
  I am trying to install SQL Server on Windows 2012. I was able to finally get the wizard up and running after making some changes on the server, but now it fails no matter what I do with the following error: TITLE: SQL Server Setup failure. SQL Server Setup has encountered the following error: … >>> More

• How can I detect which version of SQL (eg SQL 2008 or SQL Azure)

  as seen on Stack Overflow - Search for 'Stack Overflow'
  I need to detect which version of SQL I am dealing with to perorm various tasks, I need specifically detect if I am on SQL 2008 or SQL Azure. How can I do this with detection code written in SQL? >>> More

• Nested SQL Select statement fails on SQL Server 2000, ok on SQL Server 2005

  as seen on Stack Overflow - Search for 'Stack Overflow'
  Here is the query: INSERT INTO @TempTable SELECT UserID, Name, Address1 = (SELECT TOP 1 [Address] FROM (SELECT TOP 1 [Address] FROM [UserAddress] ua INNER JOIN UserAddressOrder uo ON ua.UserID = uo.UserID WHERE ua.UserID = u.UserID ORDER BY uo.AddressOrder ASC) q ORDER BY AddressOrder… >>> More

Related posts about lock

• How to create a shared lock blocking an intent exclusive lock

  as seen on Server Fault - Search for 'Server Fault'
  As I understand it, a SELECT statement will place a shared lock on the rows that it will return. While that SELECT is running, if an UPDATE statement comes along and needs to grab an intent exclusive lock then that UPDATE statement will need to wait until the SELECT statement releases its shared locks… >>> More

• Lock Question - 'U' lock vs. 'X' lock

  as seen on Stack Overflow - Search for 'Stack Overflow'
  I have a couple questions concerning Update (U) locks and Exclusive (X) locks. 1) Am I correct that an 'X' lock is put on a resource when the resource is about to get updated? 2) I'm a little fuzzy on U locks. Am I correct that a U lock is applied when a resource is read and SQL Server thinks it… >>> More

• How pattern lock disbles screen lock in android

  as seen on Stack Overflow - Search for 'Stack Overflow'
  Hi, In android 2.1, if we enable pattern lock, then the screen lock (slide to unlock) is not displayed and if pattern lock is disabled then screen lock is enabled again. Can someone point me out the java file in framework and the function where this happens. I mean when the screen is about to get… >>> More

• Why lock-free data structures just aren't lock-free enough

  as seen on Simple Talk - Search for 'Simple Talk'
  Today's post will explore why the current ways to communicate between threads don't scale, and show you a possible way to build scalable parallel programming on top of shared memory. The problem with shared memory Soon, we will have dozens, hundreds and then millions of cores in our computers… >>> More

• Java ReentrantReadWriteLocks - how to safely acquire write lock?

  as seen on Stack Overflow - Search for 'Stack Overflow'
  I am using in my code at the moment a ReentrantReadWriteLock to synchronize access over a tree-like structure. This structure is large, and read by many threads at once with occasional modifications to small parts of it - so it seems to fit the read-write idiom well. I understand that with this… >>> More