SQL SERVER – Finding Tables Created Last Week – DBA Tip

My conversations with my DBA friends are always interesting. They have unique ways to solve problems and organizations take them for granted. Most of the DBA’s want to be in control of their environment. There is no second thought on it when it comes to delivery from their side.

In a recent conversation, one of my friend asked me if there was a way to identify the tables that were created in the database in the past one week. He was asked by his security team to bring a report on when an object is created in the production server. They want to make sure no unnecessary objects are getting created in the database without prior approval.

Though my thought process was to build an audit for this, I thought of sending a simple script that can be used to identify the same.

SELECT o.name AS [Object_Name],
s.name [Schema_Name],
o.type_desc [Description],
o.create_date [Creation_Date],
o.modify_date [Modified_Date]
FROM   sys.all_objects o
LEFT OUTER JOIN sys.schemas s
ON o.schema_id = s.schema_id
WHERE  create_date > (GETDATE() - 7) OR modify_date > (GETDATE() - 7)

A sample output is shown below:

As you can see, the query can be added to a SQL Server job and we can send the same as an email to the DBA or security team automatically. The other option I gave my friend was to run an SSRS report and schedule a report output via email to the Security team.

If you are person not doing such hi-fi stuff of sending reports, then there can be a much easier way to find this information. We can use the “Schema Change History” report available inside SQL Server Management Studio to get this information.

A typical output is shown above. This is similar to the query output we discussed before but in a built-in report that is out-of-box. Most of these SQL Server Management Studio tips are simple and are hidden in some shape or form.

Do let me know if you every have had the need for such requirements? What did you do in that case? Would love to hear your experience and implementation for sure.

Reference: Pinal Dave (http://blog.sqlauthority.com)

SQL SERVER – Filter In-Memory OLTP Tables in SSMS

Earlier I had written a blog about SQL SERVER – Beginning In-Memory OLTP with Sample Example which covers the basics of working with In-Memory OLTP. Though that post gets you started, one of my colleague asked me if there was an easier way to identify In-Memory Tables when working with SQL Server Management Studio. Also my friend said, their database had 1000’s of tables and it will be impossible to look at any icon difference or something that is tough to see.

This statement got me thinking and I wanted to give him few options. On exploring SSMS, you will be surprised all these exist right in front of our eyes.

T-SQL Way

The simplest solution here was to use the standard system table and query for just the In-Memory tables. The below query will output only In-Memory tables present in the selected database where this query is being run.

SELECT * FROM sys.tables
WHERE is_memory_optimized = 1

Though these age old methods exits, these still don’t help us much when it comes to visualizing the same in SSMS.

Using Object Explorer

Method 2 is using the Object explorer -> Filter settings. In SQL Server Management Studio of SQL Server 2014, we get a nice little option to filter based on In-Memory tables. Right click the Tables node and select Filter Settings. Now in this Dialog we have additional settings that are useful.

Using Object Explorer Details

The 3rd and simple way is to use the Object Explorer Details (F7) inside SQL Server 2014 SSMS. On the header, right click to add “Memory Optimized” Column. This will show True or False values. Sort on this column and we get all the In-Memory Optimized tables at the top.

I thought these were simple yet powerful tip when working with these special tables inside SQL Server 2014. Do let me know if you have any other method other than this to filter out in-Memory Optimized tables inside SSMS.

Reference: Pinal Dave (http://blog.sqlauthority.com)

SQL SERVER – Customization of New Query in SQL Server Management Studio

Recently I was working with one of my friends who handles production server databases as a senior DBA. He told that recently one of the Jr. DBA was fired from his company because he has run a drop table command on a production server. He was scared and from that time onwards, every DBA has been asked to run select @@servername commands before executing any query on any server. Similar to this situation, many times a DBA wants a set of command, which they use very frequently, should be available as soon as SQL Server Management Studio is opened.

Both of the above situation can be handled by the trick explained in this blog.

Whenever we launch SQL Server Management Studio, it loads “SQLFile.sql” from the operating system and shows the text in the New Query Window. The location of this file depends on location of SSMS.exe and version of SQL Server. My machine has SQL Server 2012 and SQL Server 2014.

Here is the location of SSMS.exe on my 64 bit machine for SQL 2012

E:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\ManagementStudio

If you are running 32 bit operating system then it would be

<Drive>:\Program Files\Microsoft SQL Server\110\Tools\Binn\ManagementStudio

Here is the mapping of SQL versions and internal version numbers (which is 110 from SQL 2012 in the above example).

Microsoft SQL Server 2014 120
Microsoft SQL Server 2012 110
Microsoft SQL Server 2008 R2 100
Microsoft SQL Server 2008 100

Once you find SSMS.exe, then we can navigate to SqlWorkbenchProjectItems\sql folder as shown below.

The file highlighted “SQLFile.sql” is the file which is loaded as a new query window.

On my machine, I have modified the file and written below

/*
select @@version
go
select @@servername
go
Select *
from   sys.dm_exec_requests
where  blocking_session_id <> 0
*/

After modifying, whenever you open new windows, it would be as below.

As we can see that this is EXACTLY same text which we have written in the SQLFile.sql file.

Be Aware: This file is used by all user profiles on the machine. If you delete this file by mistake, you would get below error whenever a new query window is attempted.

—————————
Microsoft SQL Server Management Studio
—————————
Cannot find template file for the new query (‘E:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\ManagementStudio\SqlWorkbenchProjectItems\SQL\SQLFile.sql’).
—————————
OK
—————————

To fix this, you can create an empty file with the same path and name in the location as per error message. The path of the error message would vary based on installation on your machine.  Hope you found this tip on SSMS useful and do let me know if you will be using the same.

Reference: Pinal Dave (http://blog.sqlauthority.com)

SQL SERVER – SSMS Trick – Generating CSV file using Management Studio

In my previous blog I talked about using SQLCMD to generate a comma separate files for the table data.

Some blog readers reported that why we should use SQLCMD or BCP to generate the file when the same can be achieved using SQL Server Management Studio itself. Well, that was a strong statement and I liked the simplicity of the solution. Here are the steps. A lot of times it is our inability to learn some of the simple techniques present in the tools that we use make us even more productive.

Here are the steps to achieve the same. Go to SQL Server Management Studio > Choose Tools from Menu Bar > Click on Options. Go to “Query Results” > “SQL Server” > Click on “Results to Text”

Once we choose “Comma delimited” and hit OK – we will get below kind of output when we eecure a query (Note that we need to open a new Query Window so that the settings are saved)

 

Notice that first column is the column name. If we want to avoid that and wants ONLY the data, then we can customized that in the same place where we have modified the separator setting. If we uncheck “Include column headers in the result set” then we will get only the rows as output.

We can also choose custom delimiter. I have set delimiter as pipe (|) and unchecked the box which I mentioned earlier and below is the output for the same query.

As we can see that output is pipe separated and we just have data not column heading. This can be saved and imported again to some other server using bcp command, Bulk Insert command or Import/Export Wizard.

Recommended reading:

Reference: Pinal Dave (http://blog.sqlauthority.com)

SQL SERVER – Search Records with Single Quotes – SQL in Sixty Seconds #075

Earlier I wrote two blog posts about Search Records with Single Quotes in two parts. Refer the blog posts over here.

Though I had clarified that all the methods displayed in these two blog posts have the exact same performance, I kept on getting question on this subject, again and again! Well, as there are so many questions, I have decided to create a quick video which demonstrates that there is no performance difference among the four methods which I have displayed earlier.

Action Item

Here are the blog posts I have previously written. You can read it over here:

You can subscribe to my YouTube Channel for frequent updates.

Reference: Pinal Dave (http://blog.sqlauthority.com)

SQL SERVER – Video Introduction to Delayed Durability – SQL in Sixty Seconds #074

Earlier I wrote blog post based on my latest Pluralsight course on learning SQL Server 2014. SQL Server 2014 has introduced many new features and one of performance is Delayed Transaction Durability. This concept is indeed very interesting. To explain this feature in detail, we will require to understand what is Full Transaction Durability. The current default of SQL Server is Full Transaction Durability. A common question I often received is why would we go away from to delayed durability. The answer is – Performance prioritation over Durability.

I hope my earlier blog post clearly explained how delayed durability works for executing query works. If not, I suggest you watch following quick video where I explain this concept in extremely simple words.

You can download the code used in this video from Simple Example of Delayed Durability.

Action Item

Here are the blog posts I have previously written. You can read it over here:

You can subscribe to my YouTube Channel for frequent updates.

Reference: Pinal Dave (http://blog.sqlauthority.com)

SQL SERVER – Live Plan for Executing Query – SQL in Sixty Seconds #073

Yesterday I wrote blog post based on my latest Pluralsight course on learning SQL Server 2014. I discussed newly introduced live plans. For query before you execute it, you can see the estimated execution plan and after you executed you can see the actual execution plan – however, how to see a query plan while the query is still being executed. This is a very interesting question. In SQL Server 2014 we have now a new DMV, which tracks execution stats at each operator level while the query is still running. The DMV for the same issys.dm_exec_query_profiles.

I hope my earlier blog post clearly explained how live plan for executing query works. If not, I suggest you watch following quick video where I explain this concept in extremely simple words.

You can download the code used in this video from Simple Demo of New Cardinality Estimation Features of SQL Server 2014.

Action Item

Here are the blog posts I have previously written. You can read it over here:

You can subscribe to my YouTube Channel for frequent updates.

Reference: Pinal Dave (http://blog.sqlauthority.com)