Simulate DEX_ROW_ID in a SQL View Using ROW_NUMBER() – #MSDYNGP


I have a requirement in which I have to access a SQL view from within my customisation dictionary, in order to create a custom lookup for users to select a value based on an Extender form and an Extender lookup. Easiest option is to create an Extender view (which in turn creates a SQL view for us).

Now, this is the view that I am suppose to refer to from my custom dictionary. Dexterity allows us to refer to any SQL object by simply create a TABLE definition and mention the SQL object (table or view) name as the physical name.

Dex View

Everything looks perfect till you actually see below error messages at runtime:

Dex View - Error 1

Dex View - Error 2

Error message is quite obvious; you do not have DEX_ROW_ID in that SQL view that you are referring to. Every single Dexterity table must have DEX_ROW_ID at the backend. It cannot afford to not have one.

So how am I going to resolve this? By simply adding a record number dynamically to the SQL view created by Extender. How to do that? By adding the T-SQL function ROW_NUMBER(). This is how I achieved it:

ROW_NUMBER USAGE

 

Definition of ROW_NUMBER() can be found here: ROW_NUMBER (Transact-SQL).

A simple yet powerful SQL function has given me the power to do what I wanted in no time. Oh, and my custom lookup referring to this view is working like a charm. Users are happy and so am I.

VAIDY

syExcelReports Table & SQL Server Native Client 10.0 – Thanks Aaron Berquist


While upgrading our GP from GP2010 SP3 to GP2013 SP1, DYNAMICS database upgrade stopped unexpectedly with GP crashing without any information for me to debug.

But it stopped exactly at table syExcelReports and crashed. Without spending anymore time, I just went and checked my ODBC DSN setup, as explained by Aaron Berquist on his blog High Dynamics Range. Expectedly, the ODBC DSN driver was not pointing to SQL Server Native Client 10.0.

For some reason, GP fails to process upgrade further if your DSN driver is NOT native client 10.0 or above.

Those who upgrade your GP to latest version, please check DSN before you start database upgrade using GP Utilities.

VAIDY

DBCC SHRINKFILE


There is an amazingly simpler yet highly informative post up on TECHNET portal, which proved very handy this morning.

My systems admin reported to me that our SharePoint server ran out of storage for some reason unknown to him, but he could identify that it was SQL Server program files folder which consumed 80% of storage.

I immediately knew what could be the reason. It’s those crazy log files problem. To truncate and clear these overeating log files, I had to use this command: DBCC SHRINKFILE.

SP-Log-FileGrowth

Once I cleared out all unnecessary file space from these log files, I had to setup the File Growth and Maximum File Size (shown in the screenshot beside):

Never for a DB log file, we should setup the file growth as “In Percent”. This would prove disastrous over a period of time. Instead, always set it up to “In Megabytes” and enter a least sensible value; in my case I had set it up to 5MB.

For a DB Log file, 2GB should be reasonable amount of file space to hold the logs. To learn more about Log files, read this post on TECHNET: The Transaction Log (SQL Server).

We must understand one thing, that shrinking the DB log has got it’s own impact.

VAIDY

Implicit Conversions Causing Deadlocks in SQL Server


Quite an interesting but crucial post up there on Sans SQL blog.

The post explains that Implicit conversions in SQL Server could actually trigger a deadlock. And there are definitions for each important term (such as deadlock, implicit conversion, etc.) with an example.

I believe this post would be useful for those who work extensively on SQL Server.

VAIDY

T-SQL Function for Proper Case Format


We do not have a built in T-SQL function to convert any string (or a statement) to Proper Case format, also known as Title Case. This I feel is a very simple feature that SQL Server could have provided us, but missing even in it’s latest version, SQL Server 2012.

I thought I would highlight some links which would be useful for T-SQL programmers in our community:

  1. David Wiseman’s Solution
  2. Jeff Smith’s Solution
  3. Pinal Dave’s Solution

There are many more solutions, but above are noteworthy.

VAIDY

Quick SQL Tip: Keyboard Shortcut for Database Selection in SQL Server 2012 SSMS


Till SQL Server 2008 R2, if you want to change the database on which you would like to execute a SQL query in SQL Server Management Studio (SSMS), the keyboard shortcut to do so was CTRL + U from the query window.

Now from SQL Server 2012, it is CTRL + ALT + J.

So those who tried this using the old shortcut, keep in mind that the new shortcut.

VAIDY

SQL Server 2012 Performance Dashboards – Some Real-Time Snapshots


Following are some real time SQL Server 2012 Performance Dashboards, taken from a real time SQL Server 2012 environment:

HOME PAGE

 

EXPENSIVE QUERIES – CPU

 

EXPENSIVE QUERIES – DURATION

 

and much more…

It’s a great set of reports for every SQL Server DBA to understand his/her SQL Server environment.

VAIDY