t-sql datetime is null

SELECT COUNT(*) FROM Person WHERE BirthDate IS NULL....

SELECT COUNT(*) FROM Person WHERE BirthDate IS NULL.

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Or do you mean something else by "empty" that isn't NULL? Do...

Or do you mean something else by "empty" that isn't NULL? Does your column allow NULL values? Are you instead looking for some kind of.

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I'm writing a TSQL procedure using a CASE statement to display a NULL ...

I'm writing a TSQL procedure using a CASE statement to display a NULL date represented as ' I've tried IS NULL, direct comparisons, using DATEDIFF and comparing against Declare @MyDate as datetimeNULL datetime field. Is it possible?

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You can't get an empty string because you're returning the DATE v...

You can't get an empty string because you're returning the DATE value isnull(cast(cast(DOB as date)as varchar),'') as DOB (SQL SERVER).

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Transact-SQL now i whant to change this enddate with NULL Kalman Toth, Micr...

Transact-SQL now i whant to change this enddate with NULL Kalman Toth, Microsoft Community Contributor ; SQL GRAND  Set Default Value for DATETIME COLUMN.

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I have Datetime field in my table which is set to NULL. Now, when I An empt...

I have Datetime field in my table which is set to NULL. Now, when I An empty string is not a null value in SQL Server. Ah, didn't know that.

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declare @t table (Dinner varchar(30),d datetime) insert into @t select ...

declare @t table (Dinner varchar(30),d datetime) insert into @t select '.Net feature','' union all select 'SQL Server functionality'.

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Clear explanations and tutorial exercises are provided on assigning NULL US...

Clear explanations and tutorial exercises are provided on assigning NULL USE FyiCenterData; GO -- assign NULL values to variables DECLARE @birth_date DATETIME; Introduction To Transact-SQL Language Basics and Data Types.

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SQL Server “DATE” and “DATETIME” data types store date and time values in a...

SQL Server “DATE” and “DATETIME” data types store date and time values in a saving in a table and instead save the value Null in the table.

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Inserting NULL in a Date field in SQL Server SQL-Server The default value o...

Inserting NULL in a Date field in SQL Server SQL-Server The default value of a DateTime is. Hide Copy Code. - see here[^]. Set a different default value if you don't want a null date to be saved.

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Hello: I'm trying to return the SQL date time value of ' ' a...

Hello: I'm trying to return the SQL date time value of ' ' as NULL. I'm using the code below. But, instead, it's returning.

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If lastbilldate is a datetime field it will fail, because "N/A" i...

If lastbilldate is a datetime field it will fail, because "N/A" is not a datetime. You can't set a field null through an sql statement that I'm aware of.

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When a T-SQL expression attempts to combine data values of different more t...

When a T-SQL expression attempts to combine data values of different more than just knowing that DATETIME takes precedence over DECIMAL . use COALESCE to return the first value that does not evaluate to NULL.

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Learn to use DATEADD and DATEDIFF SQL Server functions to calculate datetim...

Learn to use DATEADD and DATEDIFF SQL Server functions to calculate datetime values in T-SQL queries and learn to OrderDate DATETIME NOT NULL.

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Is that ISO format compatible to other versions of MSSQL? CREATE TABLE &quo...

Is that ISO format compatible to other versions of MSSQL? CREATE TABLE "spt_monitor" ("lastrun" DATETIME NOT NULL DEFAULT.

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