executing null values records

Posted by jjj on Stack Overflow See other posts from Stack Overflow or by jjj
Published on 2010-03-16T07:51:29Z Indexed on 2010/03/16 7:56 UTC
Read the original article Hit count: 249

Filed under:

sql

|

nullvalue

i am trying to execute the records that have TotalTime null value from the table NewTimeAttendance...TotalTime datatype nchar(10)

select * from newtimeattendance where TotalTime =  'NULL'

....nothing

select * from newtimeattendance where TotalTime =  'null'

....nothing

select * from newtimeattendance where TotalTime =  'Null'

....nothing

select * from newtimeattendance where TotalTime =  null

....nothing

select * from newtimeattendance where TotalTime =  Null

....nothing

select * from newtimeattendance where TotalTime =  NULL

....nothing

when i select the whole table i can see that there is some NULL TotalTime values..!!

it is small select statment ..why doesn't it work ? is there a way (special way ) to execute the 'NULL' with nchar type ?!

thanks in advance

© Stack Overflow or respective owner

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 nullvalue

codegen:nullValue vs msprop:nullValue

as seen on Stack Overflow - Search for 'Stack Overflow'
Ok, I have datasets that I created way back in 1.1 framework to which we used codegen:nullValue within the XSD to handle null values. However if I open one of these datasets with vs 2005 (i.e. 2.0 framework) and add a column, it removes the codegen setting from the entire xsd but adds in msprop:nullValue However… >>> More
executing null values records

as seen on Stack Overflow - Search for 'Stack Overflow'
i am trying to execute the records that have TotalTime null value from the table NewTimeAttendance...TotalTime datatype nchar(10) select * from newtimeattendance where TotalTime = 'NULL' ....nothing select * from newtimeattendance where TotalTime = 'null' ....nothing select * from newtimeattendance… >>> More
Creating a Dynamic DataRow for easier DataRow Syntax

as seen on West-Wind - Search for 'West-Wind'
I've been thrown back into an older project that uses DataSets and DataRows as their entity storage model. I have several applications internally that I still maintain that run just fine (and I sometimes wonder if this wasn't easier than all this ORM crap we deal with with 'newer' improved technology… >>> More
Does NULL and nil are equal?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi Guys, Actually my question here is does Null and nil are equal or not? I had an Example but I am confused when they are equal when they are not. NSNull *nullValue = [NSNull null]; NSArray *arrayWithNull = [NSArray arrayWithObject:nullValue]; NSLog(@"arrayWithNull: %@", arrayWithNull); id… >>> More
Can a Generic Method handle both Reference and Nullable Value types?

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a series of Extension methods to help with null-checking on IDataRecord objects, which I'm currently implementing like this: public static int? GetNullableInt32(this IDataRecord dr, int ordinal) { int? nullInt = null; return dr.IsDBNull(ordinal) ? nullInt : dr.GetInt32(ordinal); } public… >>> More