<div>
the first count one column, the second count the entire table
</div>


the first count one column, the second count the entire table

<div>
<div class="content wysiwyg-content">
Hi experts, <br />
<br />
I can't tell the difference between these two selects, could you help me understand why they would behave differently? <br />
<br />
1. select process_Step, loan_status, count(acct#) from LMDev.dbo.sd10_View_Stagin<wbr />g group by process_step, loan_status<br />
<br />
2. select process_Step, loan_status, count(*) from LMDev.dbo.sd10_View_Stagin<wbr />g group by process_step, loan_status<br />
<br />
Thanks!
</div>
</div>


Hi experts, 

I can't tell the difference between these two selects, could you help me understand why they would behave differently? 

1. select process_Step, loan_status, count(acct#) from LMDev.dbo.sd10_View_Staging group by process_step, loan_status

2. select process_Step, loan_status, count(*) from LMDev.dbo.sd10_View_Staging group by process_step, loan_status

Thanks!

SQL Server count function

Microsoft SQL Server 2008 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. Major improvements include the  Always On technologies and support for unstructured data types.

Microsoft SQL Server 2008

Microsoft SQL Server is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning.

Microsoft SQL Server

Most development for the Microsoft platform is done utilizing the technologies supported by the.NET framework. Other development is done using Visual Basic for Applications (VBA) for programs like Access, Excel, Word and Outlook, with PowerShell for scripting, or with SQL for large databases.