    SELECT DATALENGTH(imagecol) FROM  table

See [MSDN][1]


  [1]: http://msdn.microsoft.com/en-us/library/ms173486.aspx

Different display styles:

    SELECT DATALENGTH(imagecol) as imgBytes,
		   DATALENGTH(imagecol) / 1024 as imgKbRounded,
		   DATALENGTH(imagecol) / 1024.0 as imgKb,		
		   DATALENGTH(imagecol) / 1024 / 1024 as imgMbRounded,
		   DATALENGTH(imagecol) / 1024.0 / 1024.0 as imgMb
    FROM   table


Example output:

    imgBytes	imgKbRounded	imgKb	    imgMbRounded	imgMb
    68514	    66	            66.908203	0	            0.065340041992

I want to Remove the Line Break from the string if my string Ends with Line Break.

    Sub linebreak(myString)
        If Len(myString) &lt;&gt; 0 Then
            If Right$(myString, 1) = vbCrLf Or Right$(myString, 1) = vbNewLine Then myString = Left$(myString, Len(myString) - 1)
        End If
    End Sub

How to Remove Line Break in String

I need to calculate the angle in degrees between two points for my own Point class, Point a shall be the center point.

Method:

    public float getAngle(Point target) {
		return (float) Math.toDegrees(Math.atan2(target.x - x, target.y - y));
	}

Test 1: // returns 45

    Point a = new Point(0, 0);
		System.out.println(a.getAngle(new Point(1, 1)));

Test 2: // returns -90, expected: 270

    Point a = new Point(0, 0);
		System.out.println(a.getAngle(new Point(-1, 0)));

How can i convert the returned result into a number between 0 and 359?

Java: Calculating the angle between two points in degrees

I have a table in SQL Server. This table has an image field and the application stores files in it.

Is there a way to read the size of the file in the image field using T-SQL?

What is the size of a image field content in SQL Server?

<p>I have a table in SQL Server. This table has an image field and the application stores files in it.</p>
<p>Is there a way to read the size of the file in the image field using T-SQL?</p>


I have seen prefix N in some insert T-SQL queries. Many people have used `N` before inserting the value in a table.

I searched, but I was not able to understand what is the purpose of including the `N` before inserting any strings into the table.

    INSERT INTO Personnel.Employees
    VALUES(N&#39;29730&#39;, N&#39;Philippe&#39;, N&#39;Horsford&#39;, 20.05, 1),

What purpose does this &#39;N&#39; prefix serve, and when should it be used?


What is the meaning of the prefix N in T-SQL statements and when should I use it?

Improve SQL Server query performance on large tables

How to fetch the data from one database and insert in to another database table? I can&#39;t to do this. Please help me in transferring data from one to another.

Transfer data from one database to another database

SQL Server 2012 introduced `Sequence` as a new feature, same as in Oracle and Postgres. Where sequences are preferred over identities? And why do we need sequences? 

Sequence vs identity

As I know, from the relational database theory, a `select` statement without an `order by` clause should be considered to have no particular order. But actually in SQL Server and Oracle (I&#39;ve tested on those 2 platforms), if I query from a table without an `order by` clause multiple times, I always get the results in the same order. Does this behavior can be relied on? Anyone can help to explain a little?


The order of a SQL Select statement without Order By clause

How to change the column size of the `salary` column in the `employee` table from `numeric(18,0)` to `numeric(22,5)`



Altering column size in SQL Server

I have 2 commands and need both of them executed correctly or none of them executed. So I think I need a transaction, but I don&#39;t know how to use it correctly.

What&#39;s the problem with the following script?
    
    BEGIN TRANSACTION [Tran1]

    INSERT INTO [Test].[dbo].[T1]
        ([Title], [AVG])
    VALUES (&#39;Tidd130&#39;, 130), (&#39;Tidd230&#39;, 230)

    UPDATE [Test].[dbo].[T1]
      SET [Title] = N&#39;az2&#39; ,[AVG] = 1
      WHERE [dbo].[T1].[Title] = N&#39;az&#39;

    COMMIT TRANSACTION [Tran1]
    GO

The `INSERT` command is executed, but the `UPDATE` command has a problem.

How can I implement this to rollback both commands if any of them have an error in execution?

Correct use of transactions in SQL Server

I tried to insert values from one server to another server and I got the error: 

&gt; Msg 7202, Level 11, State 2, Line 1 Could not find server
&gt; &#39;SNRJDI\SLAMANAGEMENT&#39; in sysservers. Execute sp_addlinkedserver to
&gt; add the server to sysservers.

Content Type	Original Author	Original Content on Stackoverflow
Question	Fabio	View Question on Stackoverflow
Solution 1 - Sql Server	Phil	View Answer on Stackoverflow
Solution 2 - Sql Server	j03p	View Answer on Stackoverflow

What is the size of a image field content in SQL Server?

Sql Server Problem Overview

Sql Server Solutions

Solution 1 - Sql Server

Solution 2 - Sql Server

Java: Calculating the angle between two points in degrees

How to Remove Line Break in String

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